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1. Perfusion Imaging to Select Patients with Large Ischemic Core for Mechanical Thrombectomy

Author: Basile Kerleroux, Kevin Janot, Cyril Dargazanli, Dimitri Daly-Eraya, Wagih Ben-Hassen, François Zhu, Benjamin Gory, Jean François Hak, Charline Perot, Lili Detraz, Romain Bourcier, Aymeric Rouchaud, Géraud Forestier, Joseph Benzakoun, Gaultier Marnat, Florent Gariel, Pasquale Mordasini, Johannes Kaesmacher, and Grégoire Boulouis
Subjects: acute stroke, ischemic stroke, thrombectomy, endovascular treatment, perfusion imaging, Diseases of the circulatory (Cardiovascular) system, RC666-701
Abstract: Background and Purpose Patients with acute ischemic stroke, proximal vessel occlusion and a large ischemic core at presentation are commonly not considered for mechanical thrombectomy (MT). We tested the hypothesis that in patients with baseline large infarct cores, identification of remaining penumbral tissue using perfusion imaging would translate to better outcomes after MT. Methods This was a multicenter, retrospective, core lab adjudicated, cohort study of adult patients with proximal vessel occlusion, a large ischemic core volume (diffusion weighted imaging volume ≥70 mL), with pre-treatment magnetic resonance imaging perfusion, treated with MT (2015 to 2018) or medical care alone (controls; before 2015). Primary outcome measure was 3-month favorable outcome (defined as a modified Rankin Scale of 0–3). Core perfusion mismatch ratio (CPMR) was defined as the volume of critically hypo-perfused tissue (Tmax >6 seconds) divided by the core volume. Multivariable logistic regression models were used to determine factors that were independently associated with clinical outcomes. Outputs are displayed as adjusted odds ratio (aOR) and 95% confidence interval (CI). Results A total of 172 patients were included (MT n=130; Control n=42; mean age 69.0±15.4 years; 36% females). Mean core-volume and CPMR were 102.3±36.7 and 1.8±0.7 mL, respectively. As hypothesized, receiving MT was associated with increased probability of favorable outcome and functional independence, as CPMR increased, a difference becoming statistically significant above a mismatch-ratio of 1.72. Similarly, receiving MT was also associated with favorable outcome in the subgroup of 74 patients with CPMR >1.7 (aOR, 8.12; 95% CI, 1.24 to 53.11; P=0.028). Overall (prior to stratification by CPMR) 73 (42.4%) patients had a favorable outcome at 3 months, with no difference amongst groups. Conclusions In patients currently deemed ineligible for MT due to large infarct ischemic cores at baseline, CPMR identifies a subgroup strongly benefiting from MT. Prospective studies are warranted.
Published: 2020
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2. Impact of Pretreatment Ischemic Location on Functional Outcome after Thrombectomy

Author: Yu Xie, Julien Oster, Emilien Micard, Bailiang Chen, Ioannis K. Douros, Liang Liao, François Zhu, Marc Soudant, Jacques Felblinger, Francis Guillemin, Gabriela Hossu, Serge Bracard, and on behalf of the THRACE Investigators
Subjects: stroke, ischemia, outcome, thrombectomy, Medicine (General), R5-920
Abstract: Pretreatment ischemic location may be an important determinant for functional outcome prediction in acute ischemic stroke. In total, 143 anterior circulation ischemic stroke patients in the THRACE study were included. Ischemic lesions were semi-automatically segmented on pretreatment diffusion-weighted imaging and registered on brain atlases. The percentage of ischemic tissue in each atlas-segmented region was calculated. Statistical models with logistic regression and support vector machine were built to analyze the predictors of functional outcome. The investigated parameters included: age, baseline National Institutes of Health Stroke Scale score, and lesional volume (three-parameter model), together with the ischemic percentage in each atlas-segmented region (four-parameter model). The support vector machine with radial basis functions outperformed logistic regression in prediction accuracy. The support vector machine three-parameter model demonstrated an area under the curve of 0.77, while the four-parameter model achieved a higher area under the curve (0.82). Regions with marked impacts on outcome prediction were the uncinate fasciculus, postcentral gyrus, putamen, middle occipital gyrus, supramarginal gyrus, and posterior corona radiata in the left hemisphere; and the uncinate fasciculus, paracentral lobule, temporal pole, hippocampus, inferior occipital gyrus, middle temporal gyrus, pallidum, and anterior limb of the internal capsule in the right hemisphere. In conclusion, pretreatment ischemic location provided significant prognostic information for functional outcome in ischemic stroke.
Published: 2021
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3. Impact of Emergent Cervical Carotid Stenting in Tandem Occlusion Strokes Treated by Thrombectomy: A Review of the TITAN Collaboration

Author: François Zhu, Serge Bracard, René Anxionnat, Anne-Laure Derelle, Romain Tonnelet, Liang Liao, Gioia Mione, Lisa Humbertjean, Jean-Christophe Lacour, Gabriela Hossu, Mohammad Anadani, Sébastien Richard, and Benjamin Gory
Subjects: tandem occlusion, stroke, carotid stenting, endovascular treatment, thrombectomy, emergent stenting in tandem occlusion, Neurology. Diseases of the nervous system, RC346-429
Abstract: Introduction: Endovascular therapy has been shown to be an effective and safe treatment for tandem occlusion. The endovascular therapeutic strategies for tandem occlusions strokes have not been adequately evaluated and the best approach is still controversial. The TITAN (Thrombectomy in TANdem occlusions) registry was a result of a collaborative effort to identify the best therapeutic approach for acute ischemic stroke due to tandem lesion. In this review, we aim to summarize the main findings of the TITAN study and discuss the challenges of treatment for tandem occlusion in the era of endovascular thrombectomy.Methods: A review of the data from the multicenter international observational and non-randomized TITAN registry was performed. The TITAN registry included acute ischemic stroke patients with tandem lesions (proximal intracranial occlusion and cervical carotid artery occlusion or stenosis>90%) who were treated with thrombectomy with or without carotid artery stenting.Results: Prior intravenous thrombolysis and emergent cervical carotid stenting were associated with higher reperfusion (mTICI 2b-3 and mTICI 3) rates at the end of the intervention. Poor outcome did not occur more frequently after stenting than after conservative treatment of the cervical carotid lesion. Emergent carotid stenting with antithrombotic agents and intracranial thrombectomy yielded higher reperfusion rate and good outcome (90 day mRS 0–2) compared to other strategies (carotid artery stenting and thrombectomy without antithrombotic, angioplasty and thrombectomy, or thrombectomy alone). Pretreatment intravenous thrombolysis was not associated with increased risk of hemorrhagic complications. Likewise, periprocedural unfractionated heparin did not modify the efficacy and safety results. Etiology of carotid artery lesion (atherosclerosis vs. dissection) did not emerge as predictor of outcome or recanalization.Conclusion: Emergent stenting of the cervical carotid lesion with antithrombotic agents in conjunction to thrombectomy appears to be the best treatment strategy for acute ischemic strokes with tandem lesions. These findings will be further investigated in the ongoing randomized controlled TITAN trial.
Published: 2019
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4. Clinical imaging factors of excellent outcome after thrombolysis in large-vessel stroke: a THRACE subgroup analysis

Author: Catherine Oppenheim, Francis Guillemin, Serge Bracard, Benjamin Gory, François Zhu, Gioia Mione, Lisa Humbertjean, Sébastien Richard, Nolwenn Riou-Comte, Marc Soudant, and Yu Xie
Subjects: Neurology. Diseases of the nervous system, RC346-429
Abstract: Background For patients with stroke with large-vessel occlusion (LVO), study of factors predicting response to intravenous thrombolysis (IVT) would allow identifying subgroups with high expected gain, and those for whom it could be considered as futile, and even detrimental. From patients included in the Mechanical Thrombectomy After Intravenous Alteplase vs Alteplase Alone After Stroke trial, we investigated clinical-imaging factors associated with optimal response to IVT.Methods We included patients receiving IVT alone. Excellent outcome was defined by a 3-month modified Rankin Scale (mRS) score ≤1. Clinical-imaging predictors were assessed on multivariate analysis after multiple imputations. The predictive performance of the model was assessed with the C-statistic.Results Among 247 patients with LVO treated with IVT alone, 77 (31%) showed 3-month mRS ≤1. Predictors of 3-month mRS ≤1 were no medical history of hypertension (OR 2.43; 95% CI 1.74 to 3.38; p=0.007); no current smoking (OR 2.76; 95% CI 1.79 to 4.26; p=0.02); onset-to-IVT time (OR 0.47 per hour increase; 95% CI 0.23 to 0.78; p=0.003); diffusion-weighted imaging (DWI) volume (OR 0.78 per 10 mL increase; 95% CI 0.68 to 0.89; p=0.0004); presence of susceptibility vessel sign (SVS) (OR 7.89; 95% CI 1.65 to 37.78; p=0.01) and SVS length (OR 0.87 per mm increase; 95% CI 0.80 to 0.94; p=0.001). The prediction models showed a C-statistic=0.79 (95% CI 0.79 to 0.80).Conclusions In patients with stroke with anterior-circulation LVO treated with IVT alone, predictors of excellent outcome at 3 months were no medical history of hypertension or current smoking, reduced onset-to-IVT time, small DWI volume, presence of SVS and short SVS length. These predictive factors could help practitioners in decision-making for IVT implementation in reperfusion strategies, all the more for the drip and ship paradigm.Trial registration number NCT01062698.
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5. Successful thrombectomy is beneficial in patients with pre-stroke disability: Results from an international multicenter cohort study

Author: Célina Ducroux, Laurent Derex, Mikaïl Nourredine, Julie Haesebaert, Marielle Buisson, Walid Alesefir, William Boisseau, Nicole Daneault, Yan Deschaintre, Jose Danilo B. Diestro, Omer Eker, Johanna Eneling, Laura C. Gioia, Daniella Iancu, Grégory Jacquin, Céline Odier, Christian Stapf, Jean Raymond, Daniel Roy, Alain Weill, Bertrand Lapergue, Alexandre Y. Poppe, Michel Piotin, Raphael Blanc, Hocine Redjem Simon Escalard, Jean-Philippe Desilles, François Delvoye, Stanislas Smajda, Benjamin Maier, Solène Hebert, Mikael Mazighi, Mikael Obadia, Candice Sabben, Pierre Seners, Igor Raynouard, Ovide Corabianu, Thomas de Broucker, Eric Manchon, Guillaume Taylor, Malek Ben Maacha, Laurie-Anne Thion, Augustin Lecler, Julien Savatovsky, Adrien Wang, Serge Evrard, Maya Tchikviladze, Nadia Ajili, David Weisenburger-Lile, Lucas Gorza, Géraldine Buard, Oguzhan Coskun, Arturo Consoli, Federico Di Maria, Georges Rodesh, Sergio Zimatore, Morgan Leguen, Julie Gratieux, Fernando Pico, Haja Rakotoharinandrasana, Philippe Tassan, Roxanna Poll, Sylvie Marinier, Norbert Nighoghossian, Roberto Riva, Francis Turjman, Tae-Hee Cho, Laura Mechtouff, Anne Claire Lukaszewicz, Frédéric Philippeau, Serkan Cakmak, Karine Blanc-Lasserre, Anne-Evelyne Vallet, Gaultier Marnat, Florent Gariel, Xavier Barreau, Jérôme Berge, Patrice Menegon, Igor Sibon, Ludovic Lucas, Stéphane Olindo, Pauline Renou, Sharmila Sagnier, Mathilde Poli, Sabrina Debruxelles, François Rouanet, Thomas Tourdias, Jean-Sebastien Liegey, Pierre Briau, Nicolas Pangon, Romain Bourcier, Lili Detraz, Benjamin Daumas-Duport, Pierre-Louis Alexandre, Monica Roy, Cédric Lenoble, Hubert Desal, Benoît Guillon, Solène de Gaalon, Cécile Preterre, Benjamin Gory, Serge Bracard, René Anxionnat, Marc Braun, Anne-Laure Derelle, Romain Tonnelet, Liang Liao, François Zhu, Emmanuelle Schmitt, Sophie Planel, Sébastien Richard, Lisa Humbertjean, Gioia Mione, Jean-Christophe Lacour, Nolwenn Riou-Comte, Gérard Audibert, Marcela Voicu, Ionel Alb, Marie Reitter, Madalina Brezeanu, Agnès Masson, Adriana Tabarna, Iona Podar, Francisco Macian-montoro, Suzanna Saleme, Charbel Mounayer, Aymeric Rouchaud, Vincent Costalat, Caroline Arquizan, Cyril Dargazanli, Grégory Gascou, Pierre-Henri Lefèvre, Imad Derraz, Carlos Riquelme, Nicolas Gaillard, Isabelle Mourand, Lucas Corti, Federico Cagnazzo, Adrien ter Schiphorst, Eugene Francois, Stéphane Vannier, Jean-christophe Ferre, Helene Raoult, Thomas Ronziere, Maria Lassale, Christophe Paya, Jean-Yves Gauvrit, Clément Tracol, Sophie Langnier-Lemercier, Yves Samson, Charlotte Rosso, Anne Leger, Sandrine Deltour, Frederic Clarencon, Eimad Shotar, Laurent Spelle, Christian Denier, Olivier Chassin, Vanessa Chalumeau, Jildaz Caroff, Laura Venditti, Olivier Naggara, Wagih Ben Hassen, Grégoire Boulouis, Christine Rodriguez-Régent, Denis Trystram, Basile Kerleroux, Guillaume Turc, Valérie Domigo, Catherine Lamy, Julia Birchenall, Clothilde Isabel, François Lun, Alain Viguier, Christophe Cognard, Anne Christine Januel, Jean-Marc Olivot, Nicolas Raposo, Fabrice Bonneville, Jean François Albucher, Lionel Calviere, Jean Darcourt, Philippe Tall, Guillaume Bellanger, Louis Fontaine, Emmanuel Touze, Charlotte Barbier, Romain Schneckenburger, Marion Boulanger, Julien Cogez, Sophie Guettier, Serge Timsit, Jean-christophe Gentric, Julien Ognard, Francois Mathias Merrien, Ozlem Ozkul Wermester, Evelyne Massardier, Chrysanthi Papagiannaki, Frédéric Bourdain, Patricia Bernady, Laurent Lagoarde-Segot, Hélène Cailliez, Louis Veunac, David Higue, Valérie Wolff, Raoul Pop, Rémi Beaujeux, Mihoc Dan-Sorin, Monica Manisor, Anthony Le Bras, Sarah Evain, Arnaud Le Guen, Sebastian Richter, Regis Hubrecht, Stéphanie Demasles, Bruno Barroso, Denis Sablot, Geoffroy Farouil, Maxime Tardieu, Philippe Smadja, Sabine Aptel, and Ian Seiler
Subjects: Radiological and Ultrasound Technology, Radiology, Nuclear Medicine and imaging, Neurology (clinical)
Abstract: Patients with pre-stroke disability, defined as a modified Rankin Scale (mRS) ≥3, were excluded from most trials of endovascular thrombectomy (EVT) for acute stroke. We sought to evaluate the prognostic factors associated with favorable outcome in stroke patients with known disability undergoing EVT, and the impact of successful reperfusion.Consecutive acute stroke patients with pre-stroke disability, undergoing EVT, were retrospectively collected between 2016 to 2019 from a Canadian cohort and a multicenter French cohort (Endovascular Treatment in Ischemic Stroke registry-ETIS). Favorable outcome was defined as an mRS equal to pre-stroke mRS. Patients achieving successful reperfusion (defined as a modified Thrombolysis in Cerebral Infarction score of 2b/3) were compared with patients without successful reperfusion to determine if successful EVT was associated with better functional outcomes.Among 6220 patients treated with EVT, 280 (4.5%) patients with a pre-stroke mRS ≥3 were included. Sixty-one patients (21.8%) had a favorable outcome and 146 (52.1%) died at 3 months. Patients with successful reperfusion had a higher proportion of favorable 90-day mRS (27.6% versus 19.6%, p = 0.025) and a lower mortality (48.3% versus 69.6%, p = 0.008) than patients without successful reperfusion. After adjusting for baseline prognostic factors, successful reperfusion defined by TICI ≥2b was associated with favorable functional outcome (OR 3.16 CI95% [1.11-11.5]; p 0.048).In patients with pre-stroke disability, successful reperfusion is associated with a greater proportion of favorable outcome and lower mortality.
Published: 2023

6. Reduced penetrance of an eastern French mutation in ATL1 autosomal-dominant inheritance (SPG3A): extended phenotypic spectrum coupled with brain 18F-FDG PET

Author: Armand Hocquel, Jean-Marie Ravel, Laetitia Lambert, Céline Bonnet, Guillaume Banneau, Bophara Kol, Laurène Tissier, Lucie Hopes, Mylène Meyer, Céline Dillier, Maud Michaud, Arnaud Lardin, Anne-Laure Kaminsky, Emmanuelle Schmitt, Liang Liao, François Zhu, Bronner Myriam, Carine Bossenmeyer-Pourié, Antoine Verger, and Mathilde Renaud
Subjects: Cellular and Molecular Neuroscience, Genetics, Genetics (clinical)
Published: 2022

7. Antithrombotic therapies for neurointerventional surgery: a 2021 French comprehensive national survey

Author: Jildaz, Caroff, Laurent, Aubert, Cécile, Lavenu-Bombled, Samy, Figueiredo, Kamelia, Habchi, Jonathan, Cortese, Francois, Eugene, Julien, Ognard, Florence, Tahon, Géraud, Forestier, Heloise, Ifergan, François, Zhu, Jean-Francois, Hak, Anthony, Reyre, Morgane, Laubacher, Abdoulaye, Traore, Jean Philippe, Desilles, Imad, Derraz, Ricardo, Moreno, Marc, Bintner, Guillaume, Charbonnier, Anthony, Le Bras, Louis, Veunac, Florent, Gariel, Hocine, Redjem, Jacques, Sedat, Guillaume, Tessier, Victor, Dumas, Maxime, Gauberti, Cyril, Chivot, Arturo, Consoli, Nicolas, Bricout, Titien, Tuilier, Alexis, Guedon, Raoul, Pop, Pierre, Thouant, Guillaume, Bellanger, Riccardo, Zannoni, Sebastien, Soize, Johann Sebastian, Richter, Olivier, Heck, Cristian, Mihalea, Julien, Burel, Jean-Baptiste, Girot, Eimad, Shotar, Sebastian, Gazzola, Gregoire, Boulouis, Basile, Kerleroux, Laurent, Spelle, Service de Neuroradiologie [CHU de Bicêtre], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), AP-HP Hôpital Bicêtre (Le Kremlin-Bicêtre), Service de Neuroradiologie [Rennes], CHU Pontchaillou [Rennes], CHRU Brest - Service d'Imagerie médicale (CHU - Brest - HM), Centre Hospitalier Régional Universitaire de Brest (CHRU Brest), Optimisation Continue des Actions Thérapeutiques par l'Intégration d'Informations Multimodales, Université de Brest (UBO)-Télécom Bretagne-Centre Hospitalier Régional Universitaire de Brest (CHRU Brest)-Institut National de la Santé et de la Recherche Médicale (INSERM), Hôpital Privé Clairval [Marseille], CHU Limoges, Service de neuroradiologie [Tours], Département de neuroradiologie diagnostique et thérapeutique [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Hospices Civils de Lyon (HCL), Hôpital de la Timone [CHU - APHM] (TIMONE), Service de Neurologie [Hôpitaux Civils de Colmar], Hôpitaux Civils Colmar, Fondation Ophtalmologique Adolphe de Rothschild [Paris], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), CHU Clermont-Ferrand, Centre Hospitalier Universitaire de La Réunion (CHU La Réunion), Service de Neuroradiologie Interventionnelle [CHU Besançon], Centre hospitalier Bretagne Atlantique (Morbihan) (CHBA), Le CHCB, Centre Hospitalier de la Côte Basque, CHU de Bordeaux Pellegrin [Bordeaux], Clinique des Cèdres, Centre Hospitalier Universitaire de Nice (CHU Nice), Département de Neuroradiologie [CHU Nantes], Centre hospitalier universitaire de Nantes (CHU Nantes), Centre hospitalier universitaire de Poitiers (CHU Poitiers), CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN), CHU Amiens-Picardie, Service Neuroradiologie diagnostique et interventionnelle [Hôpital Foch], Hôpital Foch [Suresnes], CHU Lille, CHU Henri Mondor, Hôpital Lariboisière-Fernand-Widal [APHP], CHU Strasbourg, CHU Dijon, Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), CHU Toulouse [Toulouse], Centre Hospitalier Universitaire de Saint-Etienne (CHU de Saint-Etienne), Centre Hospitalier Universitaire de Reims (CHU Reims), Centre hospitalier de Pau, Centre Hospitalier Universitaire [Grenoble] (CHU), CHU Rouen, Normandie Université (NU), Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM), Service de Neuroradiologie [CHU Pitié-Salpêtrière], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Saint Anne Military Teaching Hospital [Toulon, France], CHU Trousseau [Tours], Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), and Centre Hospitalier Saint-Anne (GHU Paris)
Subjects: Surgery, Neurology (clinical), General Medicine, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract: BackgroundNeurointerventionists lack guidelines for the use of antithrombotic therapies in their clinical practice; consequently, there is likely to be significant heterogeneity in antithrombotic use between centers. Through a nationwide survey, we aimed to obtain an exhaustive cross-sectional overview of antithrombotic use in neurointerventional procedures in France.MethodsIn April 2021, French neurointerventional surgery centers were invited to participate in a nationwide 51-question survey disseminated through an active trainee-led research collaborative network (the JENI-RC).ResultsAll 40 centers answered the survey. Fifty-one percent of centers reported using ticagrelor and 43% used clopidogrel as premedication before intracranial stenting. For flow diversion treatment, dual antiplatelet therapy was maintained for 3 or 6 months in 39% and 53% of centers, respectively, and aspirin was prescribed for 12 months or more than 12 months in 63% and 26% of centers, respectively. For unruptured aneurysms, the most common heparin bolus dose was 50 IU/kg (59%), and only 35% of centers monitored heparin activity for dose adjustment. Tirofiban was used in 64% of centers to treat thromboembolic complications. Fifteen percent of these comprehensive stroke centers reported using tenecteplase to treat acute ischemic strokes. Cangrelor appeared as an emergent drug in specific indications.ConclusionThis nationwide survey highlights the important heterogeneity in clinical practices across centers. There is a pressing need for trials and guidelines to further evaluate and harmonize antithrombotic regimens in the neurointerventional field.
Published: 2022

8. Réforme des autorisations : un nouveau cadre juridique pour la NRI Française

Author: Grégoire Boulouis, Jérome Berge, Jean-Pierre Pruvo, François Zhu, Claire Boutet, Basile Kerleroux, François Cotton, Igor Sibon, and Hubert Desal
Subjects: Radiological and Ultrasound Technology, Radiology, Nuclear Medicine and imaging, Neurology (clinical)
Published: 2022

9. A new legal framework for Interventional Neuroradiology in France: optimizing access to mechanical thrombectomy

Author: Grégoire, Boulouis, Jérome, Berge, Jean-Pierre, Pruvo, François, Zhu, Claire, Boutet, Basile, Kerleroux, François, Cotton, Igor, Sibon, and Hubert, Desal
Subjects: Stroke, Radiological and Ultrasound Technology, Humans, Radiology, Nuclear Medicine and imaging, France, Neurology (clinical), Brain Ischemia, Thrombectomy
Published: 2022

10. 'National survey for preliminary evaluation of neuroradiological protocols in patients with infective endocarditis'

Author: Alexandre Picherit, Dr Basile Kerleroux, Géraud Forestier, Gaultier Marnat, Claire Boutet, Héloïse Ifergan, Jean-François Hak, Alexis Guedon, Augustin Lecler, Olivier Heck, Christophe Paya, Julien Burel, Matthieu Masy, Marie-Agnès Lauvin, Mathieu Rodallec, Francois Eugene, François Zhu, Raoul Pop, Samy Boucebci, Sébastien Soize, Grégoire Boulouis, and Romain Bourcier
Subjects: Radiological and Ultrasound Technology, Radiology, Nuclear Medicine and imaging, Neurology (clinical)
Published: 2023

11. Cerebral perfusion using ASL in patients with COVID-19 and neurological manifestations: A retrospective multicenter observational study

Author: François-Daniel Ardellier, Seyyid Baloglu, Magdalena Sokolska, Vincent Noblet, François Lersy, Olivier Collange, Jean-Christophe Ferré, Adel Maamar, Béatrice Carsin-Nicol, Julie Helms, Maleka Schenck, Antoine Khalil, Augustin Gaudemer, Sophie Caillard, Julien Pottecher, Nicolas Lefèbvre, Pierre-Emmanuel Zorn, Muriel Matthieu, Jean Christophe Brisset, Clotilde Boulay, Véronique Mutschler, Yves Hansmann, Paul-Michel Mertes, Francis Schneider, Samira Fafi-Kremer, Mickael Ohana, Ferhat Meziani, Nicolas Meyer, Tarek Yousry, Mathieu Anheim, François Cotton, Hans Rolf Jäger, Stéphane Kremer, Fabrice Bonneville, Gilles Adam, Guillaume Martin-Blondel, Jérémie Pariente, Thomas Geeraerts, Hélène Oesterlé, Federico Bolognini, Julien Messie, Ghazi Hmeydia, Joseph Benzakoun, Catherine Oppenheim, Jean-Marc Constans, Serge Metanbou, Adrien Heintz, Blanche Bapst, Imen Megdiche, Lavinia Jager, Patrick Nesser, Yannick Talla Mba, Thomas Tourdias, Juliette Coutureau, Céline Hemmert, Philippe Feuerstein, Nathan Sebag, Sophie Carre, Manel Alleg, Claire Lecocq, Emmanuel Schmitt, René Anxionnat, François Zhu, Géraud Forestier, Aymeric Rouchaud, Pierre-Olivier Comby, Frederic Ricolfi, Pierre Thouant, Sylvie Grand, Alexandre Krainik, Isaure de Beaurepaire, Grégoire Bornet, Audrey Lacalm, Patrick Miailhes, Julie Pique, Claire Boutet, Xavier Fabre, Béatrice Claise, Sonia Mirafzal, Laure Calvet, Hubert Desal, Jérome Berge, Grégoire Boulouis, Apolline Kazemi, Nadya Pyatigorskaya, Augustin Lecler, Suzana Saleme, Myriam Edjlali-Goujon, Basile Kerleroux, Jean-Christophe Brisset, Samir Chenaf, Les Hôpitaux Universitaires de Strasbourg (HUS), Hôpital de Hautepierre [Strasbourg], Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), University College of London [London] (UCL), Nouvel Hôpital Civil de Strasbourg, Département de Neuroradiology [Rennes], Neuroimagerie: méthodes et applications (EMPENN), Institut National de la Santé et de la Recherche Médicale (INSERM)-Inria Rennes – Bretagne Atlantique, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-SIGNAL, IMAGE ET LANGAGE (IRISA-D6), Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), CHU Pontchaillou [Rennes], Service de Médecine Intensive et Réanimation [Strasbourg], CHU Strasbourg, Département de Radiologie [Bichat] (DR- Bichat), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-AP-HP - Hôpital Bichat - Claude Bernard [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), AP-HP - Hôpital Bichat - Claude Bernard [Paris], Immuno-Rhumatologie Moléculaire, Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM), Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg (UNISTRA), Groupe d'Analyse des Itinéraires et des Niveaux Salariaux (GAINS), Le Mans Université (UM), Les Hôptaux universitaires de Strasbourg (HUS), Observatoire Français de la Sclérose En Plaques [Lyon] (OFSEP), Centre for Integrative Biology - CBI (Inserm U964 - CNRS UMR7104 - IGBMC), Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre Hospitalier Lyon Sud [CHU - HCL] (CHLS), Hospices Civils de Lyon (HCL), Centre Hospitalier Universitaire de Toulouse (CHU Toulouse), Hôpital Louis Pasteur [Colmar] (CH Colmar), Hôpital Sainte-Anne [Paris], CHU Amiens-Picardie, CHirurgie, IMagerie et REgénération tissulaire de l’extrémité céphalique - Caractérisation morphologique et fonctionnelle - UR UPJV 7516 (CHIMERE), Université de Picardie Jules Verne (UPJV), SFNR-COVID Group, CHU Henri Mondor [Créteil], Hôpital Marie Madeleine [Forbach] (CHIC Unisanté+), CHU de Bordeaux Pellegrin [Bordeaux], Centre Hospitalier Emile Muller [Mulhouse] (CH E.Muller Mulhouse), Groupe Hospitalier de Territoire Haute Alsace (GHTHA), Centre Hospitalier de Haguenau, Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Hôpital Dupuytren [CHU Limoges], Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Centre Hospitalier Universitaire [Grenoble] (CHU), Hôpital privé d’Antony, Centre Hospitalier Universitaire de Saint-Etienne [CHU Saint-Etienne] (CHU ST-E), CHU Clermont-Ferrand, and Société Française de Neuroradiologie [Paris] (SFNR)
Subjects: Multicenter Study, Radiological and Ultrasound Technology, Cerebrovascular Circulation, COVID-19, Radiology, Nuclear Medicine and imaging, Neuroimaging, Neurology (clinical), Magnetic Resonance Imaging, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract: International audience; Background and purpose: Cerebral hypoperfusion has been reported in patients with COVID-19 and neurological manifestations in small cohorts. We aimed to systematically assess changes in cerebral perfusion in a cohort of 59 of these patients, with or without abnormalities on morphological MRI sequences.Methods: Patients with biologically-confirmed COVID-19 and neurological manifestations undergoing a brain MRI with technically adequate arterial spin labeling (ASL) perfusion were included in this retrospective multicenter study. ASL maps were jointly reviewed by two readers blinded to clinical data. They assessed abnormal perfusion in four regions of interest in each brain hemisphere: frontal lobe, parietal lobe, posterior temporal lobe, and temporal pole extended to the amygdalo-hippocampal complex.Results: Fifty-nine patients (44 men (75%), mean age 61.2 years) were included. Most patients had a severe COVID-19, 57 (97%) needed oxygen therapy and 43 (73%) were hospitalized in intensive care unit at the time of MRI. Morphological brain MRI was abnormal in 44 (75%) patients. ASL perfusion was abnormal in 53 (90%) patients, and particularly in all patients with normal morphological MRI. Hypoperfusion occurred in 48 (81%) patients, mostly in temporal poles (52 (44%)) and frontal lobes (40 (34%)). Hyperperfusion occurred in 9 (15%) patients and was closely associated with post-contrast FLAIR leptomeningeal enhancement (100% [66.4%-100%] of hyperperfusion with enhancement versus 28.6% [16.6%-43.2%] without, p=0.002). Studied clinical parameters (especially sedation) and other morphological MRI anomalies had no significant impact on perfusion anomalies.Conclusion: Brain ASL perfusion showed hypoperfusion in more than 80% of patients with severe COVID-19, with or without visible lesion on conventional MRI abnormalities.
Published: 2023

12. First-Pass Effect in Basilar Artery Occlusions: Insights From the Endovascular Treatment of Ischemic Stroke Registry

Author: Mathilde Aubertin, David Weisenburger-Lile, Benjamin Gory, Sébastien Richard, Raphael Blanc, Célina Ducroux, Michel Piotin, Julien Labreuche, Ludovic Lucas, Cyril Dargazanli, Amel Benali, Romain Bourcier, Lili Detraz, Stéphane Vannier, Maud Guillen, François Eugene, Gregory Walker, Ronda Lun, Adrien Guenego, Arturo Consoli, Gaultier Marnat, Benjamin Maier, Bertrand Lapergue, Robert Fahed, Hocine Redjem, Simon Escalard, Jean-Philippe Desilles, Gabriele Ciccio, Stanislas Smajda, Solene Hebert, François Delvoye, Mikael Mazighi, Mikael Obadia, Candice Sabben, Roxanne Peres, Ovide Corabianu, Thomas de Broucker, Didier Smadja, Sonia Alamowitch, Olivier Ille, Eric Manchon, Pierre-Yves Garcia, Guillaume Taylor, Malek Ben Maacha, Adrien Wang, Serge Evrard, Maya Tchikviladze, Nadia Ajili, David Weisenburge-Lile, Lucas Gorza, Géraldine Buard, Oguzhan Coskun, Federico Di Maria, Georges Rodesch, Sergio Zimatore, Morgan Leguen, Julie Gratieux, Fernando Pico, Haja Rakotoharinandrasana, Philippe Tassan, Roxanna Poll, Sylvie Marinier, Florent Gariel, Xavier Barreau, Jérôme Berge, Louis Veunac, Patrice Menegon, Igor Sibon, Stéphane Olindo, Pauline Renou, Sharmila Sagnier, Mathilde Poli, Sabrina Debruxelles, Benjamin Daumas-Duport, Pierre-Louis Alexandre, Monica Roy, Cédric Lenoble, Vincent L’allinec, Jean-Baptiste Girot, Hubert Desal, Serge Bracard, René Anxionnat, Marc Braun, Anne-Laure Derelle, Romain Tonnelet, Liang Liao, François Zhu, Emmanuelle Schmitt, Sophie Planel, Lisa Humbertjean, Gioia Mione, Jean-Christophe Lacour, Mathieu Bonnerot, Nolwenn Riou-Comte, Vincent Costalat, Caroline Arquizan, Grégory Gascou, Pierre-Henri Lefèvre, Imad Derraz, Carlos Riquelme, Nicolas Gaillard, Isabelle Mourand, Lucas Corti, Eugene Francois, Jean-Christophe Ferre, Helene Raoult, Thomas Ronziere, Maria Lassale, Christophe Paya, Jean-Yves Gauvrit, Clément Tracol, and Sophie Langnier-Lemercier
Subjects: Male, medicine.medical_specialty, Arterial Occlusive Diseases, First pass effect, Rescue therapy, medicine.artery, Internal medicine, Vertebrobasilar Insufficiency, Basilar artery, medicine, Humans, Registries, Endovascular treatment, Stroke, Aged, Ischemic Stroke, Thrombectomy, Advanced and Specialized Nursing, business.industry, Endovascular Procedures, Middle Aged, medicine.disease, Treatment Outcome, Ischemic stroke, Cardiology, Female, Neurology (clinical), One pass, Cardiology and Cardiovascular Medicine, business
Abstract: Background and Purpose: In the settings of thrombectomy, the first-pass effect (FPE), defined by a complete recanalization after one pass with no rescue therapy, has been shown to be associated with an improved outcome. As this phenomenon has been predominantly described in anterior circulation strokes, we aimed to study the prevalence, outcomes, and predictors of FPE in patients with a basilar artery occlusion. Methods: From a prospective multicentric registry, we collected the data of all consecutive basilar artery occlusion patients who underwent thrombectomy and compared the outcomes of patients who achieved FPE and those who did not. We also compared FPE patients with those who achieved a complete recanalization with >1 pass. Finally, a multivariate analysis was performed to determine the predictors of FPE. Results: Data from 280 patients were analyzed in our study, including 84 of 280 patients (30%) with an atheromatous etiology. An FPE was achieved in 93 patients (33.2%), with a significantly higher proportion of good outcomes (modified Rankin Scale score 0-2 at 3 months) and lower mortality than non-FPE patients. An FPE was also associated with improved outcomes compared with patients who went on to have full recanalization with >1 pass. Contact aspiration as first-line strategy was a strong predictor of FPE, whereas baseline antiplatelets and atheromatous etiology were negative predictors. Conclusions: In our study, an FPE was achieved in approximately one-third of patients with a basilar artery occlusion and was associated with improved outcomes. More research is needed to improve devices and techniques to increase the incidence of FPE. Registration: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT03776877.
Published: 2021

13. 24-Hour Carotid Stent Patency and Outcomes After Endovascular Therapy: A Multicenter Study

Author: Julien Allard, François Delvoye, Raoul Pop, Julien Labreuche, Benjamin Maier, Gaultier Marnat, Igor Sibon, François Zhu, Bertrand Lapergue, Arturo Consoli, Laurent Spelle, Christian Denier, Sébastien Richard, Michel Piotin, Benjamin Gory, Mikael Mazighi, Raphael Blanc, Hocine Redjem, Simon Escalard, Jean-Philippe Dessilles, Stanislas Smajda, Hebert Solène, Mikael Obadia, Candice Sabben, Seners Pierre, Raynouard Igor, Ovide Corabianu, Thomas de Broucker, Eric Manchon, Guillaume Taylor, Malek Ben Maacha, Laurie-Anne Thion, Lecler Augustin, Savatovsjy Julien, Adrien Wang, Serge Evrard, Maya Tchikviladze, Nadia Ajili, David WeisenburgerLile, Lucas Gorza, Géraldine Buard, Oguzhan Coskun, Federico Di Maria, Georges Rodesh, Sergio Zimatore, Morgan Leguen, Julie Gratieux, Fernando Pico, Haja Rakotoharinandrasana, Philippe Tassan, Roxanna Poll, Sylvie Marinier, Xavier Barreau, Jérôme Berge, Patrice Menegon, Ludovic Lucas, Stéphane Olindo, Pauline Renou, Sharmila Sagnier, Mathilde Poli, Sabrina Debruxelles, François Rouanet, Thomas Tourdias, Jean-Sebastien Liegey, Pierre Briau, Nicolas Pangon, Alexis Coussy, Lisa Papillon, Jean Papaxanthos, Lili Detraz, Benjamin Daumas-Duport, Pierre-Louis Alexandre, Monica Roy, Cédric Lenoble, Hubert Desal, Benoît Guillon, Solène de Gaalon, Cécile Preterre, Serge Bracard, René Anxionnat, Marc Braun, Anne-Laure Derelle, Romain Tonnelet, Liang Liao, Emmanuelle Schmitt, Sophie Planel, Lisa Humbertjean, Jean-Christophe Lacour, Nolwenn Riou-Comte, Marcela Voicu, Lionel Alb, Marie Reitter, Madalina Brezeanu, Agnès Masson, Adriana Tabarna, Iona Podar, Francisco Macian-Montoro, Suzanna Saleme, Charbel Mounayer, Aymeric Rouchaud, Vincent Costalat, Caroline Arquizan, Cyril Dargazanli, Grégory Gascou, Pierre-Henri Lefèvre, Imad Derraz, Carlos Riquelme, Nicolas Gaillard, Isabelle Mourand, Lucas Corti, Federico Cagnazzo, Adrien Ter Schiphorst, Jean-Christophe Ferre, Hélène Raoult, Thomas Ronziere, Maria Lassale, Christophe Paya, Jean-Yves Gauvrit, Clément Tracol, and Sophie Langnier-Lemercier
Subjects: Advanced and Specialized Nursing, Neurology (clinical), Cardiology and Cardiovascular Medicine
Abstract: Background: Management of extracranial internal carotid artery steno-occlusive lesion during endovascular therapy remains debated. Stent occlusion within 24 hours of endovascular therapy is a frequent event after acute carotid artery stenting, and we currently lack large population results. We investigated the incidence, predictors, and clinical impact of stent occlusion after acute carotid artery stenting in current clinical practice. Methods: Patients treated by endovascular therapy with acute carotid artery stenting between 2015 and 2019 in 5 large-volume endovascular-capable centers were retrospectively analyzed. Patients were separated in 2 groups according to the stent patency at 24 hours after carotid artery stenting. We compared baseline characteristics, treatment modalities, and clinical outcome depending on 24-hour stent patency. Primary end point was favorable outcome, defined as a modified Rankin Scale score 0–2 at 3 months. Results: A stent occlusion was observed in 47/225 patients (20.9%). Patients with stent patency had a lower baseline National Institutes of Health Stroke Scale (median [interquartile range]: 13 [7–17] versus 18 [12–21]) and had more often stroke of atherothrombotic origin (77.0% versus 53.2%). A higher stent patency rate was found for patients treated with P2Y 12 antagonists at the acute phase (odds ratio [OR]‚ 2.95 [95% CI‚ 1.10–7.91]; P =0.026) and treated with angioplasty (OR‚ 2.42 [95% CI‚ 1.24–4.67]; P =0.008). A better intracranial angiographic reperfusion was observed in patients with 24-hour stent patency compared with patients without stent patency (OR‚ 8.38 [95% CI‚ 3.07–22.78]; P P P =0.009). Conclusions: One out of 5 patients treated with carotid artery stenting during endovascular therapy presented a stent occlusion within 24 hours. This event was associated with worse functional outcome. Stroke etiology, P2Y 12 antagonist administration, quality of intracranial reperfusion, and angioplasty were associated with 24-hour stent patency.
Published: 2022

14. Injection scanoguidée percutanée de cyanoacrylate ciblée sur la fuite du liquide cérébro-spinal: une nouvelle option thérapeutique dans l'hypotension intracrânienne spontanée

Author: Liang Liao, Romain Tonnelet, Emmanuelle Schmitt, Sophie Planel, François Zhu, Patricio Muszynski, René Anxionnat, Serge Bracard, and Marc Braun
Subjects: Radiological and Ultrasound Technology, Radiology, Nuclear Medicine and imaging, Neurology (clinical)
Published: 2023

15. Vasodilator-Stimulated Phosphoprotein to Monitor Clopidogrel Posology in a 7-Year-Old Child Stented for a Post-Traumatic Intracranial Internal Carotid Artery Aneurysm

Author: Olivier Klein, Florent Girard, Marie Toussaint, Justine Miguel, Arnaud Wiedemann, René Anxionnat, François Zhu, and Valentin Hess
Subjects: 0301 basic medicine, Pediatric intensive care unit, Subarachnoid hemorrhage, medicine.diagnostic_test, business.industry, medicine.disease, Clopidogrel, 03 medical and health sciences, Traumatic Aneurysm, Stenosis, 030104 developmental biology, 0302 clinical medicine, Aneurysm, medicine.artery, Anesthesia, Pediatrics, Perinatology and Child Health, Angiography, medicine, cardiovascular diseases, Neurology (clinical), Internal carotid artery, business, 030217 neurology & neurosurgery, medicine.drug
Abstract: Many pediatric medical protocols or drug posology like biantiplatelet therapy are extrapolated from adult care. This association could be indicated in specific pediatric situations such as ischemic stroke, some cardiac conditions, or to control post stent thrombosis/stenosis. If acetylsalicylic acid is commonly used, few data are available about optimal management of clopidogrel in children. We describe the case of a 7-year-old girl admitted to pediatric intensive care unit who undergoes a transitory hemiparesis after a bicycle accident. Brain magnetic resonance imaging reveals a subarachnoid hemorrhage and a wide right Sylvian arachnoid cyst. Hemorrhage predominated at the level of the optochiasmatic cistern, close to the right internal carotid artery. At the same level, angiography revealed a small aneurysm of the internal carotid artery supposed to be a postfalse traumatic aneurysm. The deployment treated this aneurysm of a flow diverter. The treatment was performed under continuous systemic heparin therapy associated with intravenous acetylsalicylic acid, and Clopidogrel was administered immediately after the procedure. An oral bi antiplatelet treatment was initiated the day 2 with acetylsalicylic acid and clopidogrel (1 mg/kg/day). To monitor clopidogrel posology, a vasodilator-stimulated phosphoprotein [VASP]) was performed. The final VASP assay result was 20% for a clopidogrel posology at 0.5 mg/kg/day. Blood pressure and neurological examination were normal during all the hospitalization. VASP assay can be used in children to define the optimal posology of clopidogrel. Further studies are required to determine an optimal initial posology.
Published: 2021

16. Rescue intracranial permanent stenting for refractory occlusion following thrombectomy: a propensity matched analysis

Author: Heloise Ifergan, Cyril Dargazanli, Wagih Ben Hassen, Jean-Francois Hak, Benjamin Gory, Julien Ognard, Kevin Premat, Gaultier Marnat, Basile Kerleroux, François Zhu, Guillaume Bellanger, Peter B Sporns, Guillaume Charbonnier, Géraud Forestier, Jildaz Caroff, Cédric Fauché, Frédéric Clarençon, Kevin Janot, Bertrand Lapergue, and Gregoire Boulouis
Subjects: Surgery, Neurology (clinical), General Medicine
Abstract: BackgroundRescue intracranial stenting (RIS) can be used in refractory large vessel occlusion (LVO) after mechanical thrombectomy (MT). We aimed to assess the safety and efficacy of RIS versus a propensity matched sample of patients with persistent LVO.MethodsWe retrospectively analysed a multicenter retrospective pooled cohort of patients with anterior LVO (2015−2021) treated with MT, and identified patients with at least three passes and a modified Thrombolysis In Cerebral Infarction (mTICI) score of 0 to 2a. Propensity score matching was used to account for determinants of outcome in patients with or without RIS. The study outcomes included 3 months modified Rankin Scale (mRS) and symptomatic hemorrhagic transformation (HT).Results420 patients with a refractory anterior occlusion were included, of which 101 were treated with RIS (mean age 69 years). Favorable outcome (mRS 0–2) was more frequent in patients with a patent stent at day 1 (53% vs 6%, PConclusionIn selected patients with a refractory intracranial occlusion despite at least three thrombectomy passes, RIS may be associated with an overall shift towards more favorable clinical outcome, and no significant increase in the odds of symptomatic HT or death.
Published: 2023

17. CT-guided percutaneous cyanoacrylate injection targeting the spinal cerebrospinal fluid leak: a potential therapeutic option for spontaneous intracranial hypotension

Author: Liang Liao, Romain Tonnelet, Emmanuelle Schmitt, Sophie Planel, François Zhu, Patricio Muszynski, Oana Harsan, René Anxionnat, Serge Bracard, and Marc Braun
Subjects: Surgery, Neurology (clinical), General Medicine
Abstract: BackgroundWe report the first case series of spontaneous intracranial hypotension (SIH) patients who underwent CT-guided percutaneous cyanoacrylate injection targeting the cerebrospinal fluid (CSF) leak.MethodsA retrospective analysis was performed for all consecutive cases of SIH patients with CSF leak confirmed on CT myelography, treated by CT-guided percutaneous cyanoacrylate injection at our institution from 2016 to 2022. On pretreatment brain and spine MRIs, we analyzed signs of SIH according to the Bern score, and dichotomized cases into positive/negative for spinal longitudinal extradural CSF collection (SLEC-P or SLEC-N). The leaks detected on CT myelography were classified into three types according to Schievinket al. We collected the Headache Impact Test 6 (HIT-6) scores throughout a 6-month follow-up, with a brain CT scan at each visit.Results11 patients were included (mean age 48.4 years, six men). Five SLEC-P type 1, three SLEC-P type 2, and three SLEC-N type 3 leaks were identified. All patients had significant signs of SIH on pretreatment brain MRI (mean Bern score 7.8±1.1). Six patients underwent a foraminal puncture, and five patients had a cervical epidural approach. Two patients experienced mild and transient locoregional pain after cervical epidural injection. Mean HIT-6 score at baseline was 66.8±3.2 and at the 6-month follow-up was 38±3.6 (PConclusionsCT-guided percutaneous cyanoacrylate injection may be a potential therapeutic option for the different types of CSF leak causing SIH.
Published: 2023

18. Perfusion Imaging to Select Patients with Large Ischemic Core for Mechanical Thrombectomy

Author: François Zhu, Aymeric Rouchaud, Wagih Benhassen, Joseph Benzakoun, Kevin Janot, Jean François Hak, Florent Gariel, Lili Detraz, Gaultier Marnat, Cyril Dargazanli, Gregoire Boulouis, Charline Perot, Basile Kerleroux, Romain Bourcier, Géraud Forestier, Dimitri Daly-Eraya, Johannes Kaesmacher, Pasquale Mordasini, Benjamin Gory, Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Hôpital Gui de Chauliac, Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Institut de psychiatrie et neurosciences de Paris (IPNP - U1266 Inserm), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Paris (UP), Centre Hospitalier Sainte Anne [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Imagerie Adaptative Diagnostique et Interventionnelle (IADI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Département de neuroradiologie diagnostique et thérapeutique [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Hôpital de la Timone [CHU - APHM] (TIMONE), Aix Marseille Université (AMU), Hôpital Guillaume-et-René-Laennec [Saint-Herblain], CHU Limoges, Hôpital Pellegrin, CHU Bordeaux [Bordeaux]-Groupe hospitalier Pellegrin, Bern University Hospital [Berne] (Inselspital), Centre Hospitalier Régional Universitaire de Tours (CHRU TOURS), Hôpital Gui de Chauliac [CHU Montpellier], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), and Martinez Rico, Clara
Subjects: medicine.medical_specialty, lcsh:Diseases of the circulatory (Cardiovascular) system, [SDV]Life Sciences [q-bio], 610 Medicine & health, Perfusion scanning, 03 medical and health sciences, 0302 clinical medicine, Modified Rankin Scale, Internal medicine, Medicine, Acute stroke, Endovascular treatment, 030212 general & internal medicine, Prospective cohort study, Thrombectomy, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, Ischemic stroke, medicine.diagnostic_test, business.industry, Magnetic resonance imaging, Odds ratio, Perfusion imaging, Confidence interval, [SDV] Life Sciences [q-bio], lcsh:RC666-701, Cardiology, Original Article, Neurology (clinical), Cardiology and Cardiovascular Medicine, business, Perfusion, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, 030217 neurology & neurosurgery, Cohort study
Abstract: Background and Purpose Patients with acute ischemic stroke, proximal vessel occlusion and a large ischemic core at presentation are commonly not considered for mechanical thrombectomy (MT). We tested the hypothesis that in patients with baseline large infarct cores, identification of remaining penumbral tissue using perfusion imaging would translate to better outcomes after MT.Methods This was a multicenter, retrospective, core lab adjudicated, cohort study of adult patients with proximal vessel occlusion, a large ischemic core volume (diffusion weighted imaging volume ≥70 mL), with pre-treatment magnetic resonance imaging perfusion, treated with MT (2015 to 2018) or medical care alone (controls; before 2015). Primary outcome measure was 3-month favorable outcome (defined as a modified Rankin Scale of 0–3). Core perfusion mismatch ratio (CPMR) was defined as the volume of critically hypo-perfused tissue (Tmax >6 seconds) divided by the core volume. Multivariable logistic regression models were used to determine factors that were independently associated with clinical outcomes. Outputs are displayed as adjusted odds ratio (aOR) and 95% confidence interval (CI).Results A total of 172 patients were included (MT n=130; Control n=42; mean age 69.0±15.4 years; 36% females). Mean core-volume and CPMR were 102.3±36.7 and 1.8±0.7 mL, respectively. As hypothesized, receiving MT was associated with increased probability of favorable outcome and functional independence, as CPMR increased, a difference becoming statistically significant above a mismatch-ratio of 1.72. Similarly, receiving MT was also associated with favorable outcome in the subgroup of 74 patients with CPMR >1.7 (aOR, 8.12; 95% CI, 1.24 to 53.11; P=0.028). Overall (prior to stratification by CPMR) 73 (42.4%) patients had a favorable outcome at 3 months, with no difference amongst groups.Conclusions In patients currently deemed ineligible for MT due to large infarct ischemic cores at baseline, CPMR identifies a subgroup strongly benefiting from MT. Prospective studies are warranted.
Published: 2020

19. Impact of Strategy on Clinical Outcome in Large Vessel Occlusion Stroke Successfully Reperfused: ETIS Registry Results

Author: Marian Douarinou, Benjamin Gory, Arturo Consoli, Bertrand Lapergue, Maeva Kyheng, Julien Labreuche, Mohammad Anadani, Raphael Blanc, Gaultier Marnat, Romain Bourcier, Igor Sibon, François Eugène, Stéphane Vannier, Gérard Audibert, Gioia Mione, Sébastien Richard, Michel Piotin, Hocine Redjem, Simon Escalard, Jean-Philippe Dessilles, François Delvoye, Stanislas Smajda, Benjamin Maier, Hebert Solène, Mikael Mazighi, Mikael Obadia, Candice Sabben, Seners Pierre, Raynouard Igor, Ovide Corabianu, Thomas de Broucker, Eric Manchon, Guillaume Taylor, Malek Ben Maacha, Laurie-Anne Thion, Lecler Augustin, Savatovsjy Julien, Adrien Wang, Serge Evrard, Maya Tchikviladze, Nadia Ajili, David WeisenburgerLile, Lucas Gorza, Géraldine Buard, Oguzhan Coskun, Federico Di Maria, Georges Rodesh, Sergio Zimatore, Morgan Leguen, Julie Gratieux, Fernando Pico, Haja Rakotoharinandrasana, Philippe Tassan, Roxanna Poll, Sylvie Marinier, Florent Gariel, Xavier Barreau, Jérôme Berge, Patrice Menegon, Ludovic Lucas, Stéphane Olindo, Pauline Renou, Sharmila Sagnier, Mathilde Poli, Sabrina Debruxelles, François Rouanet, Thomas Tourdias, Jean-Sebastien Liegey, Pierre Briau, Nicolas Pangon, Lili Detraz, Benjamin Daumas-Duport, Pierre-Louis Alexandre, Monica Roy, Cédric Lenoble, Hubert Desal, Benoît Guillon, Solène de Gaalon, Cécile Preterre, Serge Bracard, René Anxionnat, Marc Braun, Anne-Laure Derelle, Romain Tonnelet, Liang Liao, François Zhu, Emmanuelle Schmitt, Sophie Planel, Lisa Humbertjean, Jean-Christophe Lacour, Nolwenn Riou- Comte, Marcela Voicu, Lionel Alb, Marie Reitter, Madalina Brezeanu, Agnès Masson, Adriana Tabarna, Iona Podar, Francisco Macian-Montoro, Suzanna Saleme, Charbel Mounayer, Aymeric Rouchaud, Vincent Costalat, Caroline Arquizan, Cyril Dargazanli, Grégory Gascou, Pierre-Henri Lefèvre, Imad Derraz, Carlos Riquelme, Nicolas Gaillard, Isabelle Mourand, Lucas Corti, Federico Cagnazzo, Adrien ter Schiphorst, Jean-Christophe Ferre, Hélène Raoult, Thomas Ronziere, Maria Lassale, Christophe Paya, Jean-Yves Gauvrit, Clément Tracol, and Sophie Langnier-Lemercier
Subjects: medicine.medical_specialty, Brain Ischemia, Internal medicine, medicine, Humans, Prospective Studies, Registries, Acute ischemic stroke, Stroke, Ischemic Stroke, Advanced and Specialized Nursing, Cerebral infarction, business.industry, Endovascular Procedures, medicine.disease, Cerebrovascular Disorders, Treatment Outcome, Propensity score matching, Ischemic stroke, Reperfusion, Functional independence, Cardiology, Neurology (clinical), France, Cardiology and Cardiovascular Medicine, business, Large vessel occlusion
Abstract: Background and Purpose: Approximately half of the patients with acute ischemic stroke due to anterior circulation large vessel occlusion do not achieve functional independence despite successful reperfusion. We aimed to determine influence of reperfusion strategy (bridging therapy, intravenous thrombolysis alone, or mechanical thrombectomy alone) on clinical outcomes in this population. Methods: From ongoing, prospective, multicenter, observational Endovascular Treatment in Ischemic Stroke registry in France, all patients with anterior circulation large vessel occlusion who achieved successful reperfusion (modified Thrombolysis in Cerebral Infarction 2b-3) following reperfusion therapy were included. Primary end point was favorable outcome, defined as 90-day modified Rankin Scale score ≤2. Patient groups were compared using those treated with bridging therapy as reference. Differences in baseline characteristics were reduced after propensity score-matching, with a maximum absolute standardized difference of 14% for occlusion site. Results: Among 1872 patients included, 970 (51.8%) received bridging therapy, 128 (6.8%) received intravenous thrombolysis alone, and the remaining 774 (41.4%) received MT alone. The rate of favorable outcome was comparable between groups. Excellent outcome (90-day modified Rankin Scale score 0–1) was achieved more frequently in the bridging therapy group compared with the MT alone (odds ratio after propensity score-matching, 0.70 [95% CI, 0.50–0.96]). Regarding safety outcomes, hemorrhagic complications were similar between the groups, but 90-day mortality was significantly higher in the MT alone group compared with the bridging therapy group (odds ratio, 1.60 [95% CI, 1.09–2.37]). Conclusions: This real-world observational study of patients with anterior circulation large vessel occlusion demonstrated a similar rate of favorable outcome following successful reperfusion with different therapeutic strategies. However, our results suggest that bridging therapy compared with MT alone is significantly associated with excellent clinical outcome and lower mortality. REGISTRATION: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT03776877.
Published: 2021

20. Susceptibility weighted imaging for ruptured basilar artery perforator aneurysms in the setting of angiographically negative subarachnoid hemorrhage

Author: François Zhu, Liang Liao, Serge Bracard, Anne-Laure Derelle, Patricio Muszynski, Isabelle Merlot, Sophie Planel, Emmanuelle Schmitt, Marc Braun, Benjamin Gory, and René Anxionnat
Subjects: Surgery, Neurology (clinical), General Medicine
Abstract: BackgroundRuptured basilar artery perforator aneurysms (BAPAs), defined as microaneurysms which develop in basilar perforator arteries without direct involvement of the basilar trunk, represent a rare cause of subarachnoid hemorrhage (SAH). The diagnosis of BAPAs is difficult because of their small size, with high rates of negative angiography. The development of high-resolution MRI could increase the diagnostic performance. In this study we describe the usefulness of susceptibility weighted imaging (SWI) for the diagnosis of ruptured BAPAs.MethodsIn a case series, we retrospectively collected data of patients admitted to our institution from 2018 to 2021 for SAH with negative CT angiography who underwent MRI (including SWI) and DSA during hospitalization.ResultsEight patients with a definitive diagnosis of ruptured BAPA and five patients with a definitive diagnosis of angiogram-negative SAH were included. In all of the patients with BAPAs MRI showed a focal, thick, semi-circumferential SWI hypointensity covering the vessel wall at the level of the BAPA subsequently revealed on DSA; this phenomen is known as ‘SWI capping’. No SWI capping was observed in the five patients with a definitive diagnosis of angiogram-negative SAH.ConclusionSWI capping appears to be a reliable indirect sign for the diagnosis and localization of ruptured BAPAs, a rare form of microaneurysm easily misdiagnosed on DSA in initial angiogram-negative SAH.
Published: 2022

21. Stenting intra-crânien comme stratégie de sauvetage pour les sténoses intra-crâniennes refractaires chez les patients pris en charge pour une occlusion artérielle proximale. cohorte collaborative du jeni et du registre etis

Author: Héloïse Ifergan, Cyril Dargazanli, Amel Benali, Julien Ognard, Kevin Premat, Laure Bottin, Gaultier Marnat, Basile Kerleroux, Christine Rodriguez, François Zhu, Guillaume Bellanger, Jean Darcourt, Peter Sporns, Marios Psychogios, Guillaume Charbonnier, Alessandra Biondi, Géraud Forestier, Jildaz Caroff, Cédric Fauche, Kevin Janot, Richard Bibi, Denis Herbreteau, Bertrand Lapergue, Jean-François Hak, and Grégoire Boulouis
Subjects: Radiological and Ultrasound Technology, Radiology, Nuclear Medicine and imaging, Neurology (clinical)
Published: 2022

22. MR Imaging Biomarkers for Clinical Impairment and Disease Progression in Patients with Shoulder Adhesive Capsulitis: A Prospective Study

Author: Alain Blum, Pierre Padoin, Romain Gillet, Pedro Augusto Gondim Teixeira, Aymeric Rauch, Gabriela Hossu, François Zhu, Imagerie Guilloz [CHRU Nancy] (Service d'imagerie Guilloz), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Imagerie Adaptative Diagnostique et Interventionnelle (IADI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Centre d'Investigation Clinique - Innovation Technologique [Nancy] (CIC-IT), Centre d'investigation clinique [Nancy] (CIC), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), and Hossu, Gabriela
Subjects: shoulder, [INFO.INFO-IM] Computer Science [cs]/Medical Imaging, Article, symbols.namesake, inferior gleno-humeral ligament, Keywords: Adhesive Capsulitis, Shoulder adhesive capsulitis, [INFO.INFO-IM]Computer Science [cs]/Medical Imaging, Medicine, In patient, Prospective cohort study, adhesive capsulitis, Fisher's exact test, business.industry, Medical record, Disease progression, General Medicine, Mr imaging, constant-murley score, symbols, business, Nuclear medicine, Range of motion, MRI
Abstract: Background: MRI diagnostic criteria of shoulder adhesive capsulitis (AC) are nowadays widely used, but there is little information available on the association between MRI findings and clinical impairment. Purpose: To determine the correlation of MRI findings with the Constant–Murley Score (CMS), pain duration and symptoms at the one-year follow-up in AC patients. Materials and methods: This monocentric prospective study included 132 patients with a clinical diagnosis of shoulder AC who underwent shoulder MRI. Mean patient age was 54.1 ± 9.3 years, and there were 55 men and 77 women. A radiologist examined all patients and completed the CMS just prior to MRI. Pain duration was assessed along with the signal intensity and measured the maximal thickness of the inferior glenohumeral ligament (IGHL) by two radiologists. Medical record analysis was performed in a sub-group of 49 patients to assess prognosis approximately one year after the MRI examination. Linear regression analysis with the Pearson test and the Fisher exact test were used to determine the association between MRI findings and clinical impairment. Results: There was a significant difference in mean pain duration score (3.8 ± 1.2 versus 3.2 ± 0.9 and 3.8 ± 1.2 versus 3.2 ± 0.9, respectively, for readers 1 and 2) and in mean mobility scores (15.7 ± 8 points versus 19.6 ± 10.1 points and 15.8 ± 8.2 points versus 19.4 ± 10 points, respectively, for readers 1 and 2) in patients with a high IGHL signal compared to those with a low IGHL signal (p &lt, 0.05). IGHL was thicker in patients with clinical improvement at one-year follow-up compared to those presenting clinical stability or worsening (p &lt, 0.05). Conclusions: In patients with shoulder AC, the degree of signal intensity at the IGHL was inversely related to shoulder pain duration and range of motion, and a thickened IGHL indicated a favorable outcome at one-year follow-up.
Published: 2021

23. Effect of Operator's Experience on Proficiency in Mechanical Thrombectomy: A Multicenter Study

Author: François Zhu, Wagih Ben Hassen, Nicolas Bricout, Basile Kerleroux, Kevin Janot, Benjamin Gory, René Anxionnat, Sébastien Richard, Adrien Marchal, Raphael Blanc, Michel Piotin, Arturo Consoli, Denis Trystram, Christine Rodriguez Regent, Jean-Philippe Desilles, David Weisenburger-Lile, Simon Escalard, Denis Herbreteau, Heloise Ifergan, Igor Lima Maldonado, Julien Labreuche, Hilde Henon, Olivier Naggara, Bertrand Lapergue, Grégoire Boulouis, Redjem Hocine, Ciccio Gabriele, Smajda Stanislas, Maier Benjamin, Mazighi Mikael, Obadia Mikael, Sabben Candice, Peres Roxanne, Corabianu Ovide, De Broucker Thomas, Smadja Didier, Alamowitch Sonia, Ille Olivier, Manchon Eric, Garcia Pierre-Yves, Taylor Guillaume, Ben Maacha Malek, Wang Adrien, Evrard Serge, Tchikviladze Maya, Ajili Nadia, Gorza Lucas, Buard Géraldine, Coskun Oguzhan, Di Maria Federico, Rodesh Georges, Zimatore Sergio, Leguen Morgan, Gratieux Julie, Pico Fernando, Rakotoharinandrasana Haja, Tassan Philippe, Poll Roxanna, Marinier Sylvie, Nighoghossian Norbert, Riva Roberto, Eker Omer, Turjman Francis, Derex Laurent, Cho Tae-Hee, Mechtouff Laura, Claire Lukaszewicz Anne, Philippeau Frédéric, Cakmak Serkan, Blanc-Lasserre Karine, Vallet Anne-Evelyne, Marnat Gaultier, Gariel Florent, Barreau Xavier, Berge Jérôme, Menegon Patrice, Sibon Igor, Liegey Sebastien, Olindo Stéphane, Renou Pauline, Sagnier Sharmila, Poli Mathilde, Debruxelles Sabrina, Pangon Nicolas, Bourcier Romain, Detraz Lili, Daumas-Duport Benjamin, Alexandre Pierre-Louis, Roy Monica, Lenoble Cédric, L’allinec Vincent, Girot Jean-Baptiste, Desal Hubert, Bracard Serge, Braun Marc, Derelle Anne-Laure, Tonnelet Romain, Liao Liang, Muszynski Patricio, Schmitt Emmanuelle, Planel Sophie, Humbertjean Lisa, Mione Gioia, Lacour Jean-Christophe, Riou-Comte Nolwenn, Audibert Gérard, Voicu Marcela, Alb Ionel, Reitter Marie, Brezeanu Madalina, Masson Agnès, Tabarna Adriana, Podar Ioana, Macian-Montoro Francisco, Saleme Suzanna, Mounayer Charbel, Rouchaud Aymeric, Costalat Vincent, Arquizan Caroline, Dargazanli Cyril, Gascou Grégory, Lefèvre Pierre-Henri, Derraz Imad, Riquelme Carlos, Gaillard Nicolas, Mourand Isabelle, Corti Lucas, Francois Eugene, Vannier Stéphane, Ferre Jean-Christophe, Raoult Helene, Ronziere Thomas, Lassale Maria, Paya Christophe, Gauvrit Jean-Yves, Tracol Clément, Langnier-Lemercier Sophie, Samson Yves, Rosso Charlotte, Leger Anne, Deltour Sandrine, Clarencon Frederic, Shotar Eimad, Spelle Laurent, Denier Christian, Chassin Olivier, Chalumeau Vanessa, Caroff Jildaz, Venditti Laura, Turc Guillaume, Seners Pierre, Domigo Valérie, Lamy Catherine, Birchenall Julia, Isabel Clothilde, Viguier Alain, Cognard Christophe, Christine Januel Anne, Olivot Jean-Marc, Raposo Nicolas, Bonneville Fabrice, François Albucher Jean, Calviere Lionel, Touze Emmanuel, Barbier Charlotte, Schneckenburger Romain, Boulanger Marion, Cogez Julien, Guettier Sophie, Timsit Serge, Gentric Jean-Christophe, Ognard Julien, Mathias Merrien Francois, Ozkul Wermester Ozlem, Massardier Evelyne, Papagiannaki Chrysanthi, Bourdain Frédéric, Patricia Bernady, Lagoarde-Segot Laurent, Cailliez Hélène, Veunac Louis, Higue David, Wolff Valérie, Pop Raoul, Beaujeux Rémi, Mihoc Dan-Sorin, Manisor Monica, Le Bras Anthony, Evain Sarah, Le Guen Arnaud, Richter Sebastian, Hubrecht Regis, Demasles Stéphanie, Barroso Bruno, Zuber Mathieu, Farhat Wassim, Alias Quentin, Lun François, Stenvenoot Delphine, Heinzlef Olivier, Godon Hardy Sylvie, Bohotin Valentin, and Grimaud Jérôme
Subjects: medicine.medical_specialty, Standard of care, Time Factors, Neuroradiologist, 030204 cardiovascular system & hematology, Brain Ischemia, 03 medical and health sciences, 0302 clinical medicine, Operator (computer programming), Medicine, Humans, Registries, Thrombectomy, Advanced and Specialized Nursing, Surgeons, business.industry, Cerebral infarction, Endovascular Procedures, Cerebral Infarction, medicine.disease, Mechanical thrombectomy, Stroke, Multicenter study, Ischemic stroke, Reperfusion, Physical therapy, Neurology (clinical), Cardiology and Cardiovascular Medicine, business, 030217 neurology & neurosurgery
Abstract: Background and Purpose: We aimed to evaluate among trained interventional neuroradiologist, whether increasing individual experience was associated with an improvement in mechanical thrombectomy (MT) procedural performance metrics. Methods: Individual MT procedural data from 5 centers of the Endovascular Treatment in Ischemic Stroke registry and 2 additional high-volume stroke centers were pooled. Operator experience was defined for each operator as a continuous variable, cumulating the number of MT procedures performed since January 2015, as MT became standard of care or, if later than this date, since the operator started performing mechanical thrombectomies in autonomy. We tested the associations between operator’s experience and procedural metrics. Results: A total of 4516 procedures were included, performed by 36 operators at 7 distinct centers, with a median of 97.5 endovascular treatment procedures per operator (interquartile range, 57–170.2) over the study period. Higher operator’s experience, analyzed as a continuous variable, was associated with a significantly shorter procedural duration (β estimate, −3.98 [95% CI, −5.1 to −2.8]; P P =0.013). Conclusions: In trained interventional neuroradiologists, increasing experience in MT is associated with significantly shorter procedural duration and better reperfusion rates, with a theoretical ceiling effect observed after around 100 procedures. These results may inform future training and practice guidelines to set minimal experience standards before autonomization, and to set-up operators’ recertification processes tailored to individual case volume and prior experience.
Published: 2021

24. Occlusions aiguës du tronc basilaire : résultats et pronostic à l’ère de la thrombectomie

Author: Emmanuelle Schmitt, B Lapergue, Serge Bracard, François Zhu, Sébastien Richard, M. Mazighi, Benjamin Gory, and René Anxionnat
Subjects: 03 medical and health sciences, 0302 clinical medicine, 030204 cardiovascular system & hematology, 030217 neurology & neurosurgery
Abstract: Resume Introduction Les occlusions du tronc basilaire, representent 20 % des accidents vasculaires ischemiques cerebraux et sont de mauvais pronostic. La thrombectomie mecanique, traitement de reference pour les occlusions proximales de la circulation anterieure est egalement indiquee dans ce type d’occlusion malgre l’absence de consensus. Donnees recentes Selon les donnees recentes de la litterature, une recanalisation satisfaisante est obtenue dans 79 % des cas sans difference significative selon la technique employee. La reperfusion semble meilleure et plus rapide en cas d’aspiration premiere. L’echec de recanalisation est independamment associe a une evolution clinique defavorable. La mortalite a 3 mois est associe a l’âge ≥60 ans, un score NIHSS ≥13 a l’admission, l’absence de thrombolyse intraveineuse, l’angioplastie et/ou stenting et un score pc-ASPECTS bas. Conclusion La recanalisation efficace est l’objectif premier de la prise en charge initiale, et les techniques endovasculaires recentes ont demontre leur efficacite angiographique avec une superiorite pour l’aspiration distale. Cependant, la mortalite de ces patients depasse encore les 40 % malgre les dernieres avancees techniques.
Published: 2019

25. Hemorrhagic Transformation After Thrombectomy for Tandem Occlusions

Author: Henrik Steglich-Arnholm, Sébastien Richard, Marios Psychogios, Bertrand Lapergue, Diogo C Haussen, Christophe Cognard, Michel Piotin, Benjamin Gory, François Zhu, Francis Turjman, Panagiotis Papanagiotou, Franziska Dorn, Alejandro M Spiotta, Christian Taschner, Mikael Mazighi, Monika Killer, Julien Labreuche, and Serge Bracard
Subjects: Advanced and Specialized Nursing, Intracerebral hemorrhage, medicine.medical_specialty, business.industry, Mortality rate, medicine.medical_treatment, Infarction, Odds ratio, Thrombolysis, 030204 cardiovascular system & hematology, medicine.disease, 3. Good health, 03 medical and health sciences, 0302 clinical medicine, Hematoma, Modified Rankin Scale, Internal medicine, Cardiology, Medicine, cardiovascular diseases, Neurology (clinical), Cardiology and Cardiovascular Medicine, business, Stroke, 030217 neurology & neurosurgery
Abstract: Background and Purpose— Carotid artery stenting in tandem large vessel occlusion strokes is usually avoided because of the intracranial hemorrhagic risks induced by antiplatelet therapy during thrombectomy interventions. This study aimed to evaluate the incidence of hemorrhagic transformation following thrombectomy in large vessel occlusion strokes patients with atherosclerotic cervical carotid occlusion, associated factors, and clinical relevance. Methods— The TITAN (Thrombectomy in Tandem Lesions) collaboration pooled individual data of prospectively collected multicentric thrombectomy databases for consecutive anterior circulation tandem large vessel occlusion strokes patients who underwent thrombectomy. Hemorrhagic infarction (HI) and parenchymal hematoma (PH) were assessed within 24 hours. Results— Among 289 patients with atherosclerotic cause, 66 (24.7%) patients developed HI and 38 (14.2%) PH. Intracranial carotid occlusion, diabetes mellitus, absence of prior intravenous thrombolysis, and complete extracranial carotid occlusion were independent predictors of HI. Similar predictors were found for PH with addition of higher baseline National Institutes of Health Stroke Scale and Alberta Stroke Program Early CT Score P =0.039) and had no detrimental effect on 90-day modified Rankin Scale 0 to 2 (adjusted odds ratio, 0.52; 95% CI, 0.20–1.28; P =0.25). Conclusions— Incidence of PH after tandem large vessel occlusion strokes thrombectomy is equivalent to those reported in the literature data for isolated occlusions. Similar predictors were found for PH and HI within 24 hours, whereas acute carotid artery stenting and antiplatelet therapy were not, suggesting an aggressive endovascular treatment of tandem occlusions.
Published: 2019

26. La voie radiale pour la thrombectomie cérébrale : réalisation et intérêts techniques illustrés à partir d’un cas

Author: Sébastien Richard, Serge Bracard, Anne-Laure Derelle, René Anxionnat, François Zhu, P. De Marini, Benjamin Gory, Liang Liao, O. Steinberger, and Romain Tonnelet
Subjects: 03 medical and health sciences, 0302 clinical medicine, 030204 cardiovascular system & hematology, 030217 neurology & neurosurgery
Abstract: Resume La thrombectomie mecanique est devenu le traitement de reference des infarctus cerebraux par occlusion proximale, en limitant le handicap. Dans certaines situations, l’utilisation de la voie femorale est difficile, voire impossible, et d’autres acces tels que la voie radiale permettent de pallier cette limite. Nous illustrons ici cette technique a travers du cas d’une patiente de 62 ans, obese (IMC = 48,5 kg/m2), chez qui la voie radiale droite a ete choisie pour la realisation d’une thrombectomie pour une occlusion proximale de l’artere cerebrale moyenne droite. Un « stent-retriever » a ete utilise via un catheter a ballonnet 6 French positionne au niveau de la carotide interne, et une reperfusion cerebrale complete a ete obtenu en 2 passages 34 minutes apres la ponction radiale. Cette approche apparait interessante dans certaines situations ou la voie femorale est compliquee (echec de la ponction femorale, catheterisme par voie femorale impossible).
Published: 2018

27. Comment j’évalue la réussite d’une thrombectomie mécanique intracrânienne ?

Author: M. Mercier, René Anxionnat, Benjamin Gory, Liang Liao, Sébastien Richard, Marc Braun, François Zhu, R. Dupres, Anne-Laure Derelle, S. Planel, Emmanuelle Schmitt, Serge Bracard, Romain Tonnelet, and F. Filippitzi
Subjects: 03 medical and health sciences, 0302 clinical medicine, 030204 cardiovascular system & hematology, 030217 neurology & neurosurgery, 3. Good health
Abstract: Resume Le succes d’une thrombectomie mecanique, traitement de reference des accidents ischemiques cerebraux par l’occlusion arterielle proximale de la circulation anterieure, est evalue sur un faisceau d’argument clinicoradiologique et par l’absence de complications. Le score modified Thrombolysis In Cerebral Infarction (mTICI) evalue le degre de reperfusion anterograde du territoire sylvien. Cote de 0 a 3, un score mTICI ≥ 2b etait considere comme un succes angiographique dans les recents essais, en faisant un facteur pronostic majeur. Une reperfusion mTICI ≥ 2b est naturellement associe a une recuperation clinique, evalue par le score National Institutes of Health Stroke Scale a la phase aigue. Le niveau de dependance est evalue a 90 jours par le score de Rankin modifie (mRS). L’evolution clinique est consideree comme favorable lorsque le mRS est inferieur a 2, correspondant a une autonomie dans les activites de la vie quotidienne. De recents travaux suggerent qu’un score mTICI ≥ 2c serait un meilleur indicateur d’evolution clinique favorable a 3 mois. Les complications hemorragiques ont lieu principalement dans les premieres heures de la reperfusion et sont liees a la transformation hemorragique du territoire ischemique, les complications par perforation arterielle etant plus rares. La migration d’un thrombus au niveau de l’artere cerebrale anterieure est la principale complication procedurale.
Published: 2018

28. Thrombectomy for Basilar Artery Occlusion with Mild Symptoms

Author: Adrien Guenego, Cyril Dargazanli, David Weisenburger-Lile, Benjamin Gory, Sébastien Richard, Célina Ducroux, Michel Piotin, Raphael Blanc, Julien Labreuche, Ludovic Lucas, Mathilde Aubertin, Amel Benali, Romain Bourcier, Lili Detraz, Stéphane Vannier, Maud Guillen, François Eugene, Gregory Walker, Ronda Lun, Arturo Consoli, Bertrand Lapergue, Robert Fahed, Hocine Redjem, Simon Escalard, Jean-Philippe Desilles, Gabriele Ciccio, Stanislas Smajda, Benjamin Maier, Solene Hebert, François Delvoye, Mikael Mazighi, Mikael Obadia, Candice Sabben, Roxanne Peres, Ovide Corabianu, Thomas de Broucker, Didier Smadja, Sonia Alamowitch, Olivier Ille, Eric Manchon, Pierre-Yves Garcia, Guillaume Taylor, Malek Ben Maacha, Adrien Wang, Serge Evrard, Maya Tchikviladze, Nadia Ajili, David Weisenburger, Lucas Gorza, Géraldine Buard, Oguzhan Coskun, Federico Di Maria, Georges Rodesh, Sergio Zimatore, Morgan Leguen, Julie Gratieux, Fernando Pico, Haja Rakotoharinandrasana, Philippe Tassan, Roxanna Poll, Sylvie Marinier, Gaultier Marnat, Florent Gariel, Xavier Barreau, Jérôme Berge, Louis Veunac, Patrice Menegon, Igor Sibon, Stéphane Olindo, Pauline Renou, Sharmila Sagnier, Mathilde Poli, Sabrina Debruxelles, Benjamin Daumas-Duport, Pierre-Louis Alexandre, Monica Roy, Cédric Lenoble, Vincent L'allinec, Jean-Baptiste Girot, Hubert Desal, Serge Bracard, René Anxionnat, Marc Braun, Anne-Laure Derelle, Romain Tonnelet, Liang Liao, François Zhu, Emmanuelle Schmitt, Sophie Planel, Lisa Humbertjean, Gioia Mione, Jean-Christophe Lacour, Mathieu Bonnerot, Nolwenn Riou-Comte, Vincent Costalat, Caroline Arquizan, Grégory Gascou, Pierre-Henri Lefèvre, Imad Derraz, Carlos Riquelme, Nicolas Gaillard, Isabelle Mourand, Lucas Corti, Eugene François, Jean-Christophe Ferre, Helene Raoult, Thomas Ronziere, Maria Lassale, Christophe Paya, Jean-Yves Gauvrit, Clément Tracol, Sophie Langnier-Lemercier, Hôpital de la Fondation Ophtalmologique Adolphe de Rothschild [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Hôpital Erasme [Bruxelles] (ULB), Faculté de Médecine [Bruxelles] (ULB), Université libre de Bruxelles (ULB)-Université libre de Bruxelles (ULB), Neuroradiologie [Hôpital Gui de Chauliac], Hôpital Gui de Chauliac [CHU Montpellier], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Hôpital Foch [Suresnes], Imagerie Adaptative Diagnostique et Interventionnelle (IADI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Département de neuroradiologie diagnostique et thérapeutique [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Défaillance Cardiovasculaire Aiguë et Chronique (DCAC), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Service de neurologie [CHRU Nancy], Evaluation des technologies de santé et des pratiques médicales - ULR 2694 (METRICS), Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), CHU Bordeaux [Bordeaux], Unité de recherche de l'institut du thorax (ITX-lab), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Nantes - UFR de Médecine et des Techniques Médicales (UFR MEDECINE), Université de Nantes (UN)-Université de Nantes (UN), CHU Pontchaillou [Rennes], The Ottawa Hospital, Service Neuroradiologie diagnostique et interventionnelle [Hôpital Foch], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Hôpital Gui de Chauliac [Montpellier], unité de recherche de l'institut du thorax UMR1087 UMR6291 (ITX), Université de Nantes - UFR de Médecine et des Techniques Médicales (UFR MEDECINE), and Université de Nantes (UN)-Université de Nantes (UN)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Male, medicine.medical_specialty, Multivariate analysis, [SDV.IB.MN]Life Sciences [q-bio]/Bioengineering/Nuclear medicine, 03 medical and health sciences, 0302 clinical medicine, Modified Rankin Scale, Risk Factors, Internal medicine, medicine, Vertebrobasilar Insufficiency, [INFO.INFO-IM]Computer Science [cs]/Medical Imaging, Humans, In patient, cardiovascular diseases, Prospective cohort study, Stroke, ComputingMilieux_MISCELLANEOUS, Aged, Ischemic Stroke, Retrospective Studies, Thrombectomy, Stroke scale, business.industry, Basilar artery occlusion, Middle Aged, medicine.disease, nervous system diseases, 3. Good health, Mild symptoms, Treatment Outcome, 030220 oncology & carcinogenesis, Cardiology, Surgery, Female, Neurology (clinical), business, 030217 neurology & neurosurgery, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract: To evaluate outcomes of thrombectomy in patients with a basilar artery occlusion (BAO) and mild symptoms, defined by an initial National Institutes of Health Stroke Scale (NIHSS) score ≤6.We performed a retrospective analysis of a multicenter prospective cohort of consecutive patients with acute ischemic stroke with BAO who underwent thrombectomy. We compared baseline and procedural characteristics, as well as outcomes between patients with BAO with an NIHSS score ≤6 and6. Multivariate analyses were performed to determine baseline and procedural predictors of good outcome (modified Rankin Scale score 0-2) among patients with an NIHSS score ≤6.A total of 269 patients were included: 50 (19%) had an initial NIHSS score ≤6 and 219 (81%) had an NIHSS score6. Patients with mild strokes (NIHSS score ≤6) had better outcomes (68% of modified Rankin Scale score 0-2 vs. 27% for NIHSS score6; P0.0001), lower mortality (14% vs. 48; P0.0001) and fewer parenchymal hematomas at day 1 (0% vs. 10%; P = 0.016). A multivariate analysis identified the following predictors for good outcome among patients with BAO with an NIHSS score ≤6: younger age, fewer passes, a cardioembolic cause, and the absence of need for angioplasty/stenting.Thrombectomy seems to be safer and more effective for mild BAO strokes with NIHSS score ≤6 than for more severe patients. Even although thrombectomy showed high rates of recanalization, a substantial proportion (32%) nevertheless had a poor long-term clinical outcome. The number of passes, patient's age, and stroke cause seem to be predictors of clinical outcome.
Published: 2021

29. Local anesthesia versus general anesthesia during endovascular therapy for acute stroke: a propensity score analysis

Author: Benjamin Gory, Alain Meyer, Romain Tonnelet, Ioan Martin, Sébastien Richard, Rémy Beaujeux, Dan Mihoc, Julien Pottecher, Mihaela Simu, Liang Liao, Anne-Laure Derelle, Emmanuel Happi Ngankou, François Severac, Valérie Wolff, François Zhu, Monica Manisor, Gérard Audibert, Serge Bracard, Roxana Gheoca, Salvatore Chibbaro, Raoul Pop, Oana Harsan, René Anxionnat, L'Institut hospitalo-universitaire de Strasbourg (IHU Strasbourg), Institut National de Recherche en Informatique et en Automatique (Inria)-l'Institut de Recherche contre les Cancers de l'Appareil Digestif (IRCAD)-Les Hôpitaux Universitaires de Strasbourg (HUS)-La Fédération des Crédits Mutuels Centre Est (FCMCE)-L'Association pour la Recherche contre le Cancer (ARC)-La société Karl STORZ, Département de Neuroradiologie [Strasbourg], Les Hôpitaux Universitaires de Strasbourg (HUS), Département de neuroradiologie diagnostique et thérapeutique [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Victor Babeş University of Medicine and Pharmacy (UMFT), Service de Neurologie [Strasbourg], CHU Strasbourg-Hopital Civil, CHU Strasbourg, Faculté de Médecine [Nancy], Université de Lorraine (UL), Imagerie Adaptative Diagnostique et Interventionnelle (IADI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Défaillance Cardiovasculaire Aiguë et Chronique (DCAC), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Service de neurologie [CHRU Nancy], Service de radiologie [Strasbourg], and CHU Strasbourg-Hôpital de Hautepierre [Strasbourg]
Subjects: Male, medicine.medical_treatment, Ischemia, Conscious Sedation, [SDV.IB.MN]Life Sciences [q-bio]/Bioengineering/Nuclear medicine, 030204 cardiovascular system & hematology, Anesthesia, General, Brain Ischemia, 03 medical and health sciences, 0302 clinical medicine, Modified Rankin Scale, medicine, [INFO.INFO-IM]Computer Science [cs]/Medical Imaging, Humans, Local anesthesia, Prospective Studies, Propensity Score, Stroke, Aged, Retrospective Studies, Aged, 80 and over, business.industry, Endovascular Procedures, General Medicine, Thrombolysis, Middle Aged, medicine.disease, 3. Good health, Treatment Outcome, Anesthesia, Propensity score matching, Anesthetic, Surgery, Female, Neurology (clinical), business, Complication, 030217 neurology & neurosurgery, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, medicine.drug, Anesthesia, Local
Abstract: BackgroundTo date, the choice of optimal anesthetic management during endovascular therapy (EVT) of acute ischemic stroke patients remains subject to debate. We aimed to compare functional outcomes and complication rates of EVT according to the first-line anesthetic management in two comprehensive stroke centers: local anesthesia (LA) versus general anesthesia (GA).MethodsRetrospective analysis of prospectively collected databases, identifying all consecutive EVT for strokes in the anterior circulation performed between January 1, 2018 and December 31, 2018 in two EVT-capable stroke centers. One center performed EVT under LA in the first intention, while the other center systematically used GA. Using propensity score analysis, the two groups underwent 1:1 matching, then procedural metrics, complications, and clinical outcomes were compared. Good outcome was defined as 90 days modified Rankin Scale (mRS) ≤2, and successful recanalization as modified Thrombolysis In Cerebral Ischemia (mTICI) 2b-3.ResultsDuring the study period, 219 patients were treated in the LA center and 142 in the GA center. Using the propensity score, 97 patients from each center were matched 1:1 according to the baseline characteristics. Local anesthesia was associated with a significantly lower proportion of good outcome (36.1% vs 52.0%, OR 0.53, 95% CI 0.33 to 0.87; p=0.039), lower rate of successful recanalization (70.1% vs 95.8%, OR 0.13, 95% CI 0.04 to 0.39; pConclusionsIn this study, systematic use of GA for stroke EVT was associated with better clinical outcomes, higher recanalization rates, and fewer procedural complications compared with patients treated under LA as the primary anesthetic approach.
Published: 2021

30. Ocular MRI Findings in Patients with Severe COVID-19: A Retrospective Multicenter Observational Study

Author: Adel Maamar, Francois Cotton, Joseph Benzakoun, Samira Fafi-Kremer, François ZHU, Augustin Lecler, Guillaume Martin-Blondel, Fondation Ophtalmologique Adolphe de Rotschild, Centre de Recherche en Acquisition et Traitement de l'Image pour la Santé (CREATIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Hospices Civils de Lyon (HCL)-Université Jean Monnet - Saint-Étienne (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), RMN et optique : De la mesure au biomarqueur, Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Hospices Civils de Lyon (HCL)-Université Jean Monnet - Saint-Étienne (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Wageningen University and Research [Wageningen] (WUR), Fondation Ophtalmologique Adolphe de Rothschild [Paris], and GAUTHERON, Arthur
Subjects: Male, 2019-20 coronavirus outbreak, medicine.medical_specialty, Eye Diseases, Coronavirus disease 2019 (COVID-19), [SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imaging, Posterior pole, Eye, 030218 nuclear medicine & medical imaging, Cohort Studies, 03 medical and health sciences, 0302 clinical medicine, medicine, Humans, Radiology, Nuclear Medicine and imaging, In patient, Retrospective Studies, SARS-CoV-2, business.industry, COVID-19, Mean age, Middle Aged, Magnetic Resonance Imaging, [SDV.IB.IMA] Life Sciences [q-bio]/Bioengineering/Imaging, 030220 oncology & carcinogenesis, Cohort, Female, Observational study, Radiology, business, Mri findings
Abstract: Coronavirus disease 2019 (COVID-19) may affect various organs. This case series reports nine patients (one of nine [11%] women and eight of nine [89%] men; mean age ± standard deviation, 56 years ± 13) with globe MRI abnormalities obtained from a multicenter cohort of 129 patients presenting with severe COVID-19 from March 4, 2020, to May 1, 2020. Nine of 129 (7%) patients had one or several nodules of the posterior pole that were hyperintense at fluid-attenuated inversion-recovery imaging. All patients had nodules in the macular region, eight of nine (89%) had bilateral nodules, and two of nine (22%) had nodules outside the macular region. Screening of these patients might improve the management of potentially severe ophthalmologic manifestations of the virus. See also the editorial by Kirsch in this issue. © RSNA, 2021 Online supplemental material is available for this article.
Published: 2021

31. Relevance of Brain Regions' Eloquence Assessment in Patients With a Large Ischemic Core Treated With Mechanical Thrombectomy

Author: Basile, Kerleroux, Joseph, Benzakoun, Kévin, Janot, Cyril, Dargazanli, Dimitri Daly, Eraya, Wagih, Ben Hassen, François, Zhu, Benjamin, Gory, Jean-Francois, Hak, Charline, Perot, Lili, Detraz, Romain, Bourcier, Rouchaud, Aymeric, Géraud, Forestier, Gaultier, Marnat, Florent, Gariel, Pasquale, Mordasini, Pierre, Seners, Guillaume, Turc, Johannes, Kaesmacher, Catherine, Oppenheim, Olivier, Naggara, Gregoire, Boulouis, Jean Christophe, Labour, Institut de psychiatrie et neurosciences de Paris (IPNP - U1266 Inserm), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Paris (UP), GHU Paris Psychiatrie et Neurosciences, Centre Hospitalier Régional Universitaire de Tours (CHRU TOURS), CHU Montpellier, Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Hôpital Gui de Chauliac [Montpellier], Imagerie Adaptative Diagnostique et Interventionnelle (IADI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Département de neuroradiologie diagnostique et thérapeutique [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Hôpital de la Timone [CHU - APHM] (TIMONE), Aix Marseille Université (AMU), Hôpital Guillaume-et-René-Laennec [Saint-Herblain], Hôpital Dupuytren [CHU Limoges], Hôpital Pellegrin, CHU Bordeaux [Bordeaux]-Groupe hospitalier Pellegrin, University of Bern, Hôpital Rothschild [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), FHU NeuroVasc [Site Sainte-Anne, Paris] (GHU-PPN), Centre Hospitalier Sainte Anne [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université de Paris (UP), Martinez Rico, Clara, Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Cité (UPCité), Hôpital Gui de Chauliac [CHU Montpellier], CHU Rothschild [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)
Subjects: Male, medicine.medical_specialty, 610 Medicine & health, Brain tissue, 030204 cardiovascular system & hematology, Logistic regression, Brain Ischemia, 03 medical and health sciences, 0302 clinical medicine, Primary outcome, Internal medicine, medicine, Humans, Infarct core, In patient, [SDV.NEU] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], Aged, Ischemic Stroke, Retrospective Studies, Thrombectomy, Aged, 80 and over, Core (anatomy), [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, business.industry, Middle Aged, Magnetic Resonance Imaging, Mechanical thrombectomy, Treatment Outcome, Infarction, Cardiology, Female, [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], Neurology (clinical), business, 610 Medizin und Gesundheit, Perfusion, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, 030217 neurology & neurosurgery
Abstract: ObjectiveIndividualized patient selection for mechanical thrombectomy (MT) in patients with acute ischemic stroke (AIS) and large ischemic core (LIC) at baseline is an unmet need. We tested the hypothesis that assessing the functional relevance of both infarcted and hypoperfused brain tissue would improve the selection framework of patients with LIC for MT.MethodsWe performed a multicenter, retrospective study of adults with LIC (ischemic core volume >70 mL on MRI diffusion-weighted imaging) with MRI perfusion treated with MT or best medical management (BMM). Primary outcome was 3-month modified Rankin Scale (mRS), favorable if 0–3. Global and regional eloquence-based core perfusion mismatch ratios were derived. The predictive accuracy for clinical outcome of eloquent regions involvement was compared in multivariable and bootstrap random forest models.ResultsA total of 138 patients with baseline LIC were included (MT n = 96 or BMM n = 42; mean age ± SD, 72.4 ± 14.4 years; 34.1% female; mRS 0–3: 45.1%). Mean core and critically hypoperfused volume were 100.4 mL ± 36.3 mL and 157.6 ± 56.2 mL, respectively, and did not differ between groups. Models considering the functional relevance of the infarct location showed a better accuracy for the prediction of mRS 0–3 with a c statistic of 0.76 and 0.83 for logistic regression model and bootstrap random forest testing sets, respectively. In these models, the interaction between treatment effect of MT and the mismatch was significant (p = 0.04). In comparison, in the logistic regression model disregarding functional eloquence, the c statistic was 0.67 and the interaction between MT and the mismatch was insignificant.ConclusionsConsidering functional eloquence of hypoperfused tissue in patients with a large infarct core at baseline allows for a more precise estimation of treatment expected benefit.Classification of EvidenceThis study provides Class II evidence that, in patients with AIS and LIC, considering the functional eloquence of the infarct location improves prediction of disability status at 3 months.
Published: 2021
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32. Age and Outcome after Endovascular Treatment in Anterior Circulation Large-Vessel Occlusion Stroke: ETIS Registry Results

Author: Raphaël Blanc, Caroline Arquizan, Gérard Audibert, Bertrand Lapergue, Mikael Mazighi, Gaultier Marnat, Arturo Consoli, René Anxionnat, Romain Bourcier, Cyril Dargazanli, Igor Sibon, Sébastien Richard, Benjamin Gory, Stephanos Finitsis, Jonathan I. Epstein, François Zhu, Aristotle University of Thessaloniki, Centre d'investigation clinique - Epidémiologie clinique [Nancy] (CIC-EC), Centre d'investigation clinique [Nancy] (CIC), Université de Lorraine (UL)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM), Défaillance Cardiovasculaire Aiguë et Chronique (DCAC), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Centre hospitalier universitaire de Nantes (CHU Nantes), CHU Bordeaux [Bordeaux], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Imagerie Adaptative Diagnostique et Interventionnelle (IADI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Département de neuroradiologie diagnostique et thérapeutique [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Service d'Anesthésiologie et de Soins Intensifs [CHRU Nancy], Fondation A. Rothschild, Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), and Hôpital Foch [Suresnes]
Subjects: Adult, Male, medicine.medical_specialty, Time Factors, Adolescent, 030204 cardiovascular system & hematology, Risk Assessment, Outcome (game theory), Young Adult, 03 medical and health sciences, 0302 clinical medicine, Age, Risk Factors, Internal medicine, Humans, Medicine, Registries, Endovascular treatment, 10. No inequality, Stroke, Aged, Ischemic Stroke, Retrospective Studies, Thrombectomy, Aged, 80 and over, business.industry, Endovascular Procedures, Age Factors, Middle Aged, medicine.disease, 3. Good health, Mechanical thrombectomy, Clinical trial, Treatment Outcome, Neurology, Cerebrovascular Circulation, Inclusion and exclusion criteria, Female, Observational study, [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], France, Neurology (clinical), Old, Cardiology and Cardiovascular Medicine, business, 030217 neurology & neurosurgery, Large vessel occlusion
Abstract: Background: Increasing patient age has been identified in clinical trials as a poor prognostic factor for functional independence after endovascular treatment (EVT) for acute ischemic stroke. These findings may not be fully generalizable to clinical practice due to strict inclusion and exclusion criteria in these trials. We aim to assess and quantify the association of patient age, especially in patients >80 and >90 years old, with functional outcome after EVT in current, everyday clinical practice. Methods: The ETIS (Endovascular Treatment in Ischemic Stroke) Registry is an ongoing, prospective, observational study of 6 comprehensive stroke centers in France. We analyzed 1,708 patients treated between January 2017 and December 2018 and assessed the association of patient age with functional outcome adjusting for demographic and procedural predictors of functional outcome. Results: The positive effect of mechanical thrombectomy diminished significantly with increasing age: compared to the 18–80 years age group, the odds for achieving a good functional outcome at 90 days after the procedure decreased in the 80–90 and >90 years groups (multilevel OR: 0.38, 95% CI: 0.28–0.51 and OR: 0.2, 95% CI: 0.09–0.45, respectively, p < 0.001). Increasing age was associated with increased mortality (multilevel OR: 2.46, 95% CI: 1.72–3.54 for the 80–90 years group and multilevel OR: 5.49, 95% CI: 2.97–10.16 for the >90 years group). Conclusion: Patient age is strongly associated with functional outcome after EVT for acute ischemic stroke. The positive effect of thrombectomy persists in older age groups, even after adjustment for prognostic factors related to poor functional outcome. Stroke physicians should provide EVT irrespective of the patient’s age.
Published: 2021

33. Correlation Between MRI Findings and Clinical Impairment In Patients With Shoulder Adhesive Capsulitis: A Prospective Study

Author: Gabriella Hossu, Romain Gillet, François Zhu, Pierre Padoin, Aymeric Rauch, Alain Blum, and Pedro Augusto Gondim Teixiera
Subjects: medicine.medical_specialty, business.industry, Shoulder adhesive capsulitis, medicine, In patient, Radiology, Prospective cohort study, business, Mri findings
Abstract: Objectives: MRI diagnostic criteria of shoulder adhesive capsulitis (AC) are widely used, but there is little information available on the association between MRI findings and clinical impairment. The aim of our study was to determine the correlation of MRI findings with the Constant-Murlay Score (CMS), pain duration, and symptoms at the one-year follow-up in AC patients. Methods: MRI of 132 patients with a clinical diagnosis of shoulder AC were prospectively studied. A radiologist examined all patients and completed the CMS just prior to MRI. Pain duration was assessed. The signal intensity and the maximal thickness of the inferior glenohumeral (IGHL) and coracohumeral (CHL) ligaments were measured by two radiologists. Medical record analysis was performed in a sub-group of 49 patients to assess correlation approximately one year after the MRI examination. Results: There was a significant difference in mean pain duration score (3.8 ± 1.2 versus 3.2 ± 0.9 and 3.8 ± 1.2 versus 3.2 ± 0.9 respectively for readers 1 and 2) and in mean mobility scores (15.7 ± 8 points versus 19.6 ± 10.1 points and 15.8 ± 8.2 points versus 19.4 ± 10 points respectively for readers 1 and 2) in patients with a high IGHL signal compared to those with a low signal (P P
Published: 2020

34. Mechanical thrombectomy practices in France: Exhaustive survey of centers and individual operators

Author: A. Kastler, Christophe Paya, Romain Bourcier, J. Sedat, O. Zurlinden, Alexis Guédon, A. Marchal, Pierre Thouant, Thomas Personnic, Sébastien Soize, Aymeric Rouchaud, Florent Gariel, Olivier Naggara, Kevin Premat, Kevin Janot, Hubert Desal, Mohamed Aggour, Eimad Shotar, R. Hanafi, J.-B. Veyrieres, O. Heck, Pierre-François Manceau, Guillaume Charbonnier, X. Carle, C. Bogey, T. Tuilier, J. Le Moa, Géraud Forestier, Emmanuel Chabert, Simon Escalard, M. Mejdoubi, Nicolas Raynaud, Gregoire Boulouis, Cyril Dargazanli, Omer Eker, Pierre-Olivier Comby, P. Lebedinsky, Raoul Pop, Denis Herbreteau, Jérôme Berge, Victor Dumas, Vincent L'Allinec, Stéphane Velasco, Frédéric Clarençon, J.S. Richter, E. Ducouret, Jean-Christophe Gentric, Arturo Consoli, Caterina Michelozzi, Lili Detraz, Jean-François Hak, Marc Bintner, François Eugène, Charlotte Barbier, J. Caroff, Imad Derraz, Robert Fahed, Jean Darcourt, Jean-Baptiste Girot, Benjamin Gory, Alessandra Biondi, C. Papagiannaki, François Zhu, Gautier Marnat, Julien Ognard, Wagih Ben Hassen, F. Di-Maria, Basile Kerleroux, A. Le Bras, C. Arteaga, Vanessa Chalumeau, P. Guedin, V. Civelli, Service de Radiologie et Imagerie Médicale [CHU Limoges], CHU Limoges, Institut de psychiatrie et neurosciences de Paris (IPNP - U1266 Inserm), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Service de neuroradiologie [Tours], Imagerie Adaptative Diagnostique et Interventionnelle (IADI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Hôpital de la Milétrie, Centre hospitalier universitaire de Poitiers (CHU Poitiers), CHU Marseille, CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Centre hospitalier universitaire de Nantes (CHU Nantes), Université de Reims Champagne-Ardenne (URCA), Centre Hospitalier Universitaire de Reims (CHU Reims), Hôpital Pellegrin, CHU Bordeaux [Bordeaux]-Groupe hospitalier Pellegrin, XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), Service de Neuroradiologie interventionnelle [CHU Limoges], CHU Amiens-Picardie, Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM), Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), Service de Neuroradiologie [Brest], Centre Hospitalier Régional Universitaire de Brest (CHRU Brest), CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN), CHU Clermont-Ferrand, Hôpital pasteur [Colmar], CHU Henri Mondor [Créteil], Service de neuroradiologie, imagerie des urgences [CHU de Dijon], Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Centre Hospitalier Universitaire de Martinique [Fort-de-France, Martinique], Service de neuroradiologie [Grenoble], CHU Grenoble, Service de Neuroradiologie [CHU de Bicêtre], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Services de neuroradiologie [Lille], Hôpital Roger Salengro [Lille]-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Service de neuroradiologie [Lyon], Hôpital neurologique et neurochirurgical Pierre Wertheimer [CHU - HCL], Hospices Civils de Lyon (HCL)-Hospices Civils de Lyon (HCL), Service de neuroradiologie diagnostique et interventionnelle, Université de la Méditerranée - Aix-Marseille 2-Assistance Publique - Hôpitaux de Marseille (APHM)- Hôpital de la Timone [CHU - APHM] (TIMONE), Neuroradiologie [Hôpital Gui de Chauliac], Hôpital Gui de Chauliac [CHU Montpellier], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Département de neuroradiologie diagnostique et thérapeutique [CHRU Nancy], Centre Hospitalier Universitaire de Nice (CHU Nice), Centre hospitalier territorial Gaston-Bourret [Nouméa], Hôpital de la Fondation Ophtalmologique Adolphe de Rothschild [AP-HP], Service de Neuroradiologie [CHU Lariboisière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Lariboisière-Fernand-Widal [APHP], Centre Hospitalier de Polynésie Française, Département de Radiologie [CHU de Rennes], Université de Rennes (UR), Service de Radiologie [CHU Rouen], CHU Rouen, Normandie Université (NU)-Normandie Université (NU), Centre Hospitalier Universitaire de Saint-Etienne [CHU Saint-Etienne] (CHU ST-E), CHU Sud Saint Pierre [Ile de la Réunion], Département de Neuroradiologie [Strasbourg], Les Hôpitaux Universitaires de Strasbourg (HUS), Hôpital Foch [Suresnes], Hopital d'instruction des armées Sainte-Anne [Toulon] (HIA), Service Neuroradiologie Diagnostique et Thérapeutique [CHU Toulouse], Pôle imagerie médicale [CHU Toulouse], Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Centre Hospitalier Universitaire de Toulouse (CHU Toulouse), Centre hospitalier de Vannes, Service de Neuroradiologie [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), CHU Henri Mondor, Hôpital Gui de Chauliac [Montpellier], Centre Hospitalier Universitaire de Saint-Etienne (CHU de Saint-Etienne), CCSD, Accord Elsevier, Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Paris (UP), Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Neuroradiologie Diagnostique et Thérapeutique [Toulouse], Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Hôpital Purpan [Toulouse], CHU Toulouse [Toulouse], Centre Hospitalier Régional Universitaire de Tours (CHRU TOURS), Service de neuroradiologie diagnostique et fonctionnelle [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)
Subjects: Male, medicine.medical_specialty, [INFO.INFO-IM] Computer Science [cs]/Medical Imaging, [SDV.IB.MN]Life Sciences [q-bio]/Bioengineering/Nuclear medicine, Suction, Stroke care, Radiography, Interventional, Nationwide survey, [SDV.IB.MN] Life Sciences [q-bio]/Bioengineering/Nuclear medicine, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, Surveys and Questionnaires, [INFO.INFO-IM]Computer Science [cs]/Medical Imaging, Humans, Medicine, Radiology, Nuclear Medicine and imaging, Practice Patterns, Physicians', Stroke, ComputingMilieux_MISCELLANEOUS, Aged, Ischemic Stroke, Thrombectomy, Neuroradiology, Aged, 80 and over, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, Radiological and Ultrasound Technology, business.industry, Public health, Continuity of Patient Care, Middle Aged, medicine.disease, Magnetic Resonance Imaging, 3. Good health, Mechanical thrombectomy, Female, Stents, Continuity of care, France, Neurology (clinical), Medical emergency, business, 030217 neurology & neurosurgery, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract: Background and purpose Mechanical thrombectomy (MT) has dramatically changed the landscape of stroke care as well as stroke care organization. Public health institutions are faced with the challenge of swiftly providing equal access to this high technical level procedure with rapidly broadening indications, and constantly developing techniques. The aim of this study was to present a current nationwide overview of technical MT practices in France as well as local organizations. Materials and methods Thrombectomy capable French stroke centers, and physicians performing MT were invited to participate to a nationwide survey, disseminated through an existing trainee-led research network (the JENI-RC) under the aegis of the French Society of Neuroradiology. The survey was composed of 64 questions to collect both individual practices and general center-based information. Results All French centers (100%) answered the survey, and 74% (110/148) of active interventional neuroradiologists (INR) performing MT completed individual questionnaires. The mean number of INR per center performing MT was 3.7 ± 1.85, and 85% of the centers were organized for 24/7 continuity of care. MRI was the most commonly used imaging modality for stroke diagnosis and patients’ selection, and perfusion imaging was routinely available in 85% of the centers. Half of centers performed yearly between 100 and 200 MT. Anesthesiologic, and technical considerations are also developed in the manuscript. Conclusions This nationwide survey highlights the impressive response to the challenge of reorganization of stroke care with regards to mechanical thrombectomy in France. Technical and management disparities remain. Most centers remain understaffed to properly function in the long term, but the inflow of INT trainees is substantial.
Published: 2020

35. Neurologic and neuroimaging findings in patients with COVID-19: A retrospective multicenter study

Author: Ghazi Hmeydia, Xavier Fabre, Géraud Forestier, Catherine Oppenheim, Manel Alleg, Julie Helms, Sophie Carré, Julien Messie, Muriel Mathieu, Grégoire Bornet, Claire Lecocq, M Edjlali-Goujon, R. Anxionnat, Jean-Christophe Brisset, Pierre-Emmanuel Zorn, Francis Schneider, Olivier Collange, Stéphane Kremer, Nadya Pyatigorskaya, François Cotton, Frédéric Ricolfi, François Lersy, Pierre-Olivier Comby, Nicolas Meyer, Jean-Christophe Ferré, Lavinia Jager, Augustin Lecler, Joseph Benzakoun, Béatrice Carsin-Nicol, Maleka Schenck, Suzana Saleme, Thibault Willaume, Emmanuelle Schmitt, Samira Fafi-Kremer, Pierre Thouant, Isaure de Beaurepaire, François Zhu, Seyyid Baloglu, Claire Boutet, Augustin Gaudemer, Federico Bolognini, Hubert Desal, Sophie Caillard, Mathieu Anheim, Jean-Marc Constans, Yannick Talla, Hélène Oesterlé, François-Daniel Ardellier, Hamid Merdji, Basile Kerleroux, Apolline Kazémi, Adel Maamar, Paul Michel Mertes, Antoine Khalil, Patrick Nesser, Mickaël Ohana, Ferhat Meziani, Jérôme Berge, Gregoire Boulouis, Les Hôptaux universitaires de Strasbourg (HUS), CHU Strasbourg, Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Nanomédecine Régénérative (NanoRegMed), Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM), Hôpitaux Civils de Colmar, AP-HP - Hôpital Bichat - Claude Bernard [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre hospitalier de Haguenau, Centre Hospitalier Universitaire de Nancy (CHU Nancy), Hôpital Marie-Madeleine [Forbach], Département de Radiologie [CHU de Rennes], Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Institut de psychiatrie et neurosciences de Paris (IPNP - U1266 Inserm), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Paris (UP), CHU Pontchaillou [Rennes], CHU Dijon, Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Centre Hospitalier Universitaire de Saint-Etienne (CHU de Saint-Etienne), Centre Hospitalier de Roanne (CH Roanne), CH de Roanne, CHU Limoges, Hôpital Privé d'Antony, Centre hospitalier universitaire de Nantes (CHU Nantes), CHU Bordeaux [Bordeaux], CHU Lille, CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute (ICM), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), CHirurgie, IMagerie et REgénération tissulaire de l’extrémité céphalique - Caractérisation morphologique et fonctionnelle - UR UPJV 7516 (CHIMERE), Université de Picardie Jules Verne (UPJV), Observatoire Français de la Sclérose En Plaques [Lyon] (OFSEP), Immuno-Rhumatologie Moléculaire, Nouvel Hôpital Civil de Strasbourg, Hospices Civils de Lyon (HCL), Ferré, Jean-Christophe, École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Université de Rennes (UR), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Institut du Cerveau = Paris Brain Institute (ICM), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and Centre Hospitalier Universitaire de Saint-Etienne [CHU Saint-Etienne] (CHU ST-E)
Subjects: medicine.medical_specialty, business.industry, [SCCO.NEUR]Cognitive science/Neuroscience, [SCCO.NEUR] Cognitive science/Neuroscience, Meningoencephalitis, Retrospective cohort study, medicine.disease, 3. Good health, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, Pneumonia, 0302 clinical medicine, Neurologic manifestation, Internal medicine, Corticospinal tract, Cohort, medicine, Neurology (clinical), Young adult, business, 030217 neurology & neurosurgery, Encephalitis
Abstract: ObjectiveTo describe neuroimaging findings and to report the epidemiologic and clinical characteristics of patients with coronavirus disease 2019 (COVID-19) with neurologic manifestations.MethodsIn this retrospective multicenter study (11 hospitals), we included 64 patients with confirmed COVID-19 with neurologic manifestations who underwent a brain MRI.ResultsThe cohort included 43 men (67%) and 21 women (33%); their median age was 66 (range 20–92) years. Thirty-six (56%) brain MRIs were considered abnormal, possibly related to severe acute respiratory syndrome coronavirus. Ischemic strokes (27%), leptomeningeal enhancement (17%), and encephalitis (13%) were the most frequent neuroimaging findings. Confusion (53%) was the most common neurologic manifestation, followed by impaired consciousness (39%), presence of clinical signs of corticospinal tract involvement (31%), agitation (31%), and headache (16%). The profile of patients experiencing ischemic stroke was different from that of other patients with abnormal brain imaging: the former less frequently had acute respiratory distress syndrome (p= 0.006) and more frequently had corticospinal tract signs (p= 0.02). Patients with encephalitis were younger (p= 0.007), whereas agitation was more frequent for patients with leptomeningeal enhancement (p= 0.009).ConclusionsPatients with COVID-19 may develop a wide range of neurologic symptoms, which can be associated with severe and fatal complications such as ischemic stroke or encephalitis. In terms of meningoencephalitis involvement, even if a direct effect of the virus cannot be excluded, the pathophysiology seems to involve an immune or inflammatory process given the presence of signs of inflammation in both CSF and neuroimaging but the lack of virus in CSF.ClinicalTrials.gov identifierNCT04368390.
Published: 2020

36. Predictors of Unexplained Early Neurological Deterioration After Endovascular Treatment for Acute Ischemic Stroke

Author: Jean-Baptiste Girot, Sébastien Richard, Florent Gariel, Igor Sibon, Julien Labreuche, Maéva Kyheng, Benjamin Gory, Cyril Dargazanli, Benjamin Maier, Arturo Consoli, Benjamin Daumas-Duport, Bertrand Lapergue, Romain Bourcier, Michel Piotin, Raphael Blanc, Hocine Redjem, Simon Escalard, Jean-Philippe Desilles, Gabriele Ciccio, Stanislas Smajda, Mikael Mazighi, Mikael Obadia, Candice Sabben, Roxanne Peres, Ovide Corabianu, Thomas de Broucker, Didier Smadja, Sonia Alamowitch, Olivier Ille, Eric Manchon, Pierre-Yves Garcia, Guillaume Taylor, Malek Ben Maacha, Adrien Wang, Serge Evrard, Maya Tchikviladze, Nadia Ajili, David Weisenburger, Lucas Gorza, Géraldine Buard, Oguzhan Coskun, Federico Di Maria, Georges Rodesh, Sergio Zimatore, Morgan Leguen, Julie Gratieux, Fernando Pico, Haja Rakotoharinandrasana, Philippe Tassan, Roxanna Poll, Sylvie Marinier, Norbert Nighoghossian, Roberto Riva, Omer Eker, Francis Turjman, Laurent Derex, Tae-Hee Cho, Laura Mechtouff, Anne Claire Lukaszewicz, Frédéric Philippeau, Serkan Cakmak, Karine Blanc-Lasserre, Anne-Evelyne Vallet, Gaultier Marnat, Xavier Barreau, Jérôme Berge, Louis Veunac, Patrice Menegon, Ludovic Lucas, Stéphane Olindo, Pauline Renou, Sharmila Sagnier, Mathilde Poli, Sabrina Debruxelles, Thomas Tourdias et Jean-Sebastien Liegey, Lili Detraz, Pierre-Louis Alexandre, Monica Roy, Cédric Lenoble, Vincent L’allinec, Hubert Desal, Benoît Guillon, Solène de Gaalon, Cécile Preterre, Serge Bracard, René Anxionnat, Marc Braun, Anne-Laure Derelle, Romain Tonnelet, Liang Liao, François Zhu, Emmanuelle Schmitt, Sophie Planel, Lisa Humbertjean, Gioia Mione, Jean-Christophe Lacour, Mathieu Bonnerot, Nolwenn Riou-Comte, Francisco Macian-Montoro, Suzanna Saleme, Charbel Mounayer, Aymeric Rouchaud, Vincent Costalat, Caroline Arquizan, Grégory Gascou, Pierre-Henri Lefèvre, Imad Derraz, Carlos Riquelme, Nicolas Gaillard, Isabelle Mourand, Lucas Corti, Eugene Francois, Stéphane Vannier, Jean-Christophe Ferre, Helene Raoult, Thomas Ronziere, Maria Lassale, Christophe Paya, Jean-Yves Gauvrit, Clément Tracol, Sophie Langnier-Lemercier, Yves Samson, Charlotte Rosso, Anne Leger, Sandrine Deltour, Frederic Clarencon, Eimad Shotar, Laurent Spelle, Christian Denier, Olivier Chassin, Vanessa Chalumeau, Jildaz Caroff, Laura Venditti, Guillaume Turc, Glivier Naggara, Gregoire Boulouis, Waghih Ben Hassen, Pierre Seners, Alain Viguier, Christophe Cognard, Anne Christine Januel, Jean-Marc Olivot, Nicolas Raposo, Fabrice Bonneville, Emmanuel Touze, Charlotte Barbier, Romain Schneckenburger, Marion Boulanger, Julien Cogez, Sophie Guettier, Département de Neuro-Radiologie [Angers] (DNR - Angers), Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM)-PRES Université Nantes Angers Le Mans (UNAM), Département de Neuroradiologie [St Herblain], Hôpital Guillaume-et-René-Laennec [Saint-Herblain], Défaillance Cardiovasculaire Aiguë et Chronique (DCAC), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Centre d'investigation clinique plurithématique Pierre Drouin [Nancy] (CIC-P), Centre d'investigation clinique [Nancy] (CIC), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Département de Neuro-Radiologie [Bordeaux] (DNR - Bordeaux), CHU Bordeaux [Bordeaux], Service de neurologie [Bordeaux], CHU Bordeaux [Bordeaux]-Groupe hospitalier Pellegrin, Evaluation des technologies de santé et des pratiques médicales - ULR 2694 (METRICS), Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Imagerie Adaptative Diagnostique et Interventionnelle (IADI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Département de neuroradiologie diagnostique et thérapeutique [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Département de Neuroradiologie[Montpellier], Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Gui de Chauliac [CHU Montpellier], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Université de Montpellier (UM), Hôpital de la Fondation Ophtalmologique Adolphe de Rothschild [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Hôpital Foch [Suresnes], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Université de Montpellier (UM), Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Gui de Chauliac [Montpellier]-Université de Montpellier (UM), and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)
Subjects: Male, medicine.medical_specialty, [SDV.IB.MN]Life Sciences [q-bio]/Bioengineering/Nuclear medicine, 030204 cardiovascular system & hematology, Brain Ischemia, Brain ischemia, 03 medical and health sciences, 0302 clinical medicine, Fibrinolytic Agents, Risk Factors, Internal medicine, [INFO.INFO-IM]Computer Science [cs]/Medical Imaging, Medicine, Humans, In patient, Prospective Studies, Registries, Endovascular treatment, Stroke, Acute ischemic stroke, Aged, Thrombectomy, Advanced and Specialized Nursing, Aged, 80 and over, business.industry, Endovascular Procedures, Middle Aged, medicine.disease, Combined Modality Therapy, 3. Good health, Blood pressure, Treatment Outcome, Ischemic stroke, Cardiology, Female, Neurology (clinical), Cardiology and Cardiovascular Medicine, business, 030217 neurology & neurosurgery, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract: Background and Purpose: Although the efficacy of endovascular treatment (EVT) in patients with anterior circulation ischemic stroke (AIS) is well documented, early neurological deterioration after EVT remains a serious issue associated with poor outcome. Besides obvious causes, such as lack of reperfusion, procedural complications, or parenchymal hemorrhage, early neurological deterioration may remain unexplained (UnEND). Our aim was to investigate predictors of UnEND after EVT in patients with AIS. Methods: Patients who underwent EVT for AIS, with an initial National Institutes of Health Stroke Scale score >5, Alberta Stroke Program Early CT Score ≥6, and included in a multicenter prospective observational registry were analyzed. Predictors of UnEND, defined as ≥4-point increase in the National Institutes of Health Stroke Scale score between baseline and day 1 after EVT, were determined via center-adjusted analyses. Results: Among the 1925 included in the analysis, 128 UnEND (6.6%) were recorded. In multivariate analysis, predictors of UnEND were diabetes mellitus (odds ratio [OR], 2.17 [95% CI, 1.32–3.56]), prestroke modified Rankin Scale score ≥2 (OR, 2.22 [95% CI, 1.09–4.55]), general anesthesia (OR, 2.55 [95% CI, 1.51–4.30]), admission systolic blood pressure (OR, 1.10 [95% CI, 1.01–1.20]), age (OR, 1.38 [95% CI, 1.14–1.67]), number of passes (OR, 1.16 [95% CI, 1.04–1.28]), direct admission or not to a comprehensive stroke center (OR, 0.49 [95% CI, 0.30–0.81]), and initial National Institutes of Health Stroke Scale score (OR, 0.65 [95% CI, 0.52–0.81]). Conclusions: Severely impaired AIS patients with nonmodifiable factors are more likely to develop UnEND. Some modifiable predictors of UnEND such as the number of EVT passes could be the object of improvement in AIS management.
Published: 2020

37. Predictive factors of functional independence after optimal reperfusion in anterior circulation ischaemic stroke with indication for intravenous thrombolysis plus mechanical thrombectomy

Author: Nolwenn Riou-Comte, Michel Piotin, Benjamin Gory, Marc Soudant, Serge Bracard, Lisa Humbertjean, Francis Guillemin, Sébastien Richard, François Zhu, Gabriela Hossu, Aster investigators Thrace, J-C Lacour, Gioia Mione, B Lapergue, René Anxionnat, Service de Chirurgie Cardio-vasculaire [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Centre d'investigation clinique [Nancy] (CIC), Université de Lorraine (UL)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM), Département de neuroradiologie diagnostique et thérapeutique [CHRU Nancy], Imagerie Adaptative Diagnostique et Interventionnelle (IADI), Université de Lorraine (UL)-Institut National de la Santé et de la Recherche Médicale (INSERM), Hôpital Foch [Suresnes], and Fondation Ophtalmologique Adolphe de Rothschild [Paris]
Subjects: Male, medicine.medical_specialty, Multivariate statistics, Mechanical Thrombolysis, medicine.medical_treatment, stroke outcome, [SDV.IB.MN]Life Sciences [q-bio]/Bioengineering/Nuclear medicine, Logistic regression, Brain Ischemia, 03 medical and health sciences, 0302 clinical medicine, Modified Rankin Scale, Internal medicine, Occlusion, medicine, [INFO.INFO-IM]Computer Science [cs]/Medical Imaging, Humans, Thrombolytic Therapy, 030212 general & internal medicine, 10. No inequality, Aged, Ischemic Stroke, Retrospective Studies, Thrombectomy, ischaemic stroke, Cerebral infarction, business.industry, Thrombolysis, Odds ratio, medicine.disease, cerebral infarction, Confidence interval, 3. Good health, prediction model, Stroke, Functional Status, Treatment Outcome, Neurology, Reperfusion, Cardiology, Female, Neurology (clinical), large-vessel occlusion, business, 030217 neurology & neurosurgery, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract: International audience; Background and purpose: Intravenous thrombolysis plus mechanical thrombectomy (IVT + MT) is the best current management of acute stroke due to large-vessel occlusion and results in optimal reperfusion for most patients. Nevertheless, some of these patients do not subsequently achieve functional independence. The aim was to identify baseline factors associated with 3-month independence after optimal reperfusion and to validate a prediction model.Methods: All consecutive patients with intracranial anterior large-vessel occlusion, with indication for IVT + MT and achieving optimal reperfusion (defined as modified Treatment in Cerebral Ischaemia score 2b-3), from the THRACE trial and the ETIS registry, were included in order to identify a prediction model. The primary outcome was 3-month independence [modified Rankin Scale (mRS) score ≤ 2]. Multivariate inferences invoked forward logistic regression, multiple imputation and bootstrap resampling. Predictive performance was assessed by c-statistic. Model validation was conducted on patients from the ASTER trial.Results: Amongst 139 patients (mean age 65.5 years; 54.3% female), predictors of 3-month mRS ≤ 2 (n = 82) were younger age [odds ratio 0.62 per 10-year increase; 95% confidence interval (CI) 0.53-0.72] and higher Alberta Stroke Program Early Computed Tomography Score (ASPECTS) (odds ratio 1.65 per 1-point increase; 95% CI 1.47-1.86) with c-statistic 0.77. Model validation (n = 104/181 patients with 3-month mRS ≤ 2) demonstrated a moderate discrimination (c-statistic 0.74; 95% CI 0.66-0.81) combining age and ASPECTS. The validation model was improved by the adjunction of three candidate variables that were found to be predictors. Addition of baseline National Institutes of Health Stroke Scale (NIHSS) score, history of vascular risk factor and onset-to-reperfusion time significantly improved discrimination (c-statistic 0.85; 95% CI 0.83-0.87).Conclusions: After optimal reperfusion, younger age, higher ASPECTS, lower NIHSS score, shorter onset-to-reperfusion time and absence of vascular risk factor were predictive of independence and could help to guide patient management.
Published: 2020

38. Late complications of radiosurgery for cerebral arteriovenous malformations: report of 5 cases of chronic encapsulated intracerebral hematomas and review of the literature

Author: François Zhu, Isabelle Buccheit, Olivier Klein, Serge Bracard, Guillaume Gauchotte, Stephanos Finitsis, René Anxionnat, and Valérie Bernier
Subjects: Adult, Intracranial Arteriovenous Malformations, Male, lcsh:Medical physics. Medical radiology. Nuclear medicine, medicine.medical_specialty, medicine.medical_treatment, lcsh:R895-920, Radiosurgery, Asymptomatic, lcsh:RC254-282, 03 medical and health sciences, 0302 clinical medicine, Hematoma, Edema, medicine, Humans, Effective treatment, Radiology, Nuclear Medicine and imaging, Cerebral Hemorrhage, business.industry, Research, Middle Aged, medicine.disease, lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens, Cerebral arteriovenous malformations, Radiation therapy, Hemiparesis, Oncology, 030220 oncology & carcinogenesis, Chronic Disease, Female, Radiology, medicine.symptom, business, 030217 neurology & neurosurgery
Abstract: Background Chronic encapsulated intracerebral hematomas (CEIHs) are a rare, late complication of radiosurgery for intracranial AVM. We present 5 cases treated mostly by surgical excision and review the literature. Methods Patients (age 39, 42, 36, 31, 62) presented with headache, paresthesia, hemiparesis or were asymptomatic. CEIHs presented 10 to 13 years (median 12 years) post radiosurgery. Three patients had demonstrated early radiation induced changes post radiosurgery. Angiographic cure, assessed with DSA, was present in all cases except 1 case with a small nidus remnant. MRI demonstrated mixed lesions with a solid enhancing part, organized hematoma and extensive surrounding edema while three cases had also a cystic component. Results Excision of the CEIHs with complete or partial removal of the capsule was performed in 4 patients and resulted in marked clinical improvement. One patient was managed conservatively with administration of steroids as surgery was judged excessively hazardous with eventual stabilization of his symptoms. Conclusions CEIHs are rare, late complications of radiosurgery for cranial AVM. They may be asymptomatic or provoke symptoms and may be preceded by early radiation induced changes. Complete removal of CEIHS is an effective treatment. Because of the long latency period of CEIHs, patients who had radiosurgery for brain AVMs should be followed by MRI at least 10 years even after complete obliteration.
Published: 2020

39. Time from I.V. Thrombolysis to Thrombectomy and Outcome in Acute Ischemic Stroke

Author: Bertrand Lapergue, Mikael Mazighi, Gérard Audibert, Arturo Consoli, Benjamin Gory, Maxime Gauberti, Maeva Kyheng, Romain Bourcier, Igor Sibon, François Zhu, Etis Investigators, Cyril Dargazanli, Raphaël Blanc, Gaultier Marnat, René Anxionnat, Sébastien Richard, Julien Labreuche, Caroline Arquizan, Imagerie Adaptative Diagnostique et Interventionnelle (IADI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Département de neuroradiologie diagnostique et thérapeutique [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Physiopathologie et imagerie des troubles neurologiques (PhIND), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN), CHU Bordeaux [Bordeaux], Centre hospitalier universitaire de Nantes (CHU Nantes), CHU Lille, Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Service d'Anesthésiologie et de Soins Intensifs [CHRU Nancy], Fondation A. Rothschild, Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Hôpital Foch [Suresnes], Service Neuroradiologie diagnostique et interventionnelle [Hôpital Foch], Défaillance Cardiovasculaire Aiguë et Chronique (DCAC), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Centre d'investigation clinique plurithématique Pierre Drouin [Nancy] (CIC-P), Centre d'investigation clinique [Nancy] (CIC), Université de Lorraine (UL)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM), and Service de neurologie [CHRU Nancy]
Subjects: 0301 basic medicine, Male, medicine.medical_specialty, medicine.medical_treatment, Time-to-Treatment, 03 medical and health sciences, 0302 clinical medicine, Modified Rankin Scale, Internal medicine, medicine, Humans, Thrombolytic Therapy, Stroke, Aged, Cerebral Hemorrhage, Ischemic Stroke, Thrombectomy, Intracerebral hemorrhage, Aged, 80 and over, Cerebral infarction, business.industry, Endovascular Procedures, Thrombolysis, Odds ratio, Middle Aged, medicine.disease, Combined Modality Therapy, Confidence interval, 3. Good health, 030104 developmental biology, Functional Status, Logistic Models, Treatment Outcome, Neurology, Cardiology, Observational study, [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], Female, Neurology (clinical), business, 030217 neurology & neurosurgery
Abstract: International audience; Objective: Whether the time from intravenous thrombolysis (IVT) to endovascular treatment (EVT) in patients with acute ischemic stroke has an effect on the functional outcome is unknown. Methods: The Endovascular Treatment in Ischemic Stroke (ETIS) registry is an ongoing, prospective, multicenter, observational study that perform EVT in France. Data were analyzed from patients treated by IVT and EVT between October 2013 and December 2018 in 6 comprehensive stroke centers. In the primary analysis, we assessed the association of time from IVT administration to start of EVT with functional outcome (measured with the modified Rankin Scale [mRS]), by means of ordinal logistic regression. Secondary end points included angiographic and safety outcomes. Results: We analyzed 1,986 patients with acute ischemic stroke due to anterior circulation large vessel occlusion who underwent IVT and EVT. An increased IVT to start of EVT time was associated with a worse functional outcome at 90 days (mRS = 0–2, adjusted odds ratio [OR] per 30 minutes increase in time = 0.91, 95% confidence interval [CI] = 0.86–0.96; mRS = 0–1, adjusted OR per 30 minutes increase in time = 0.89, 95% CI = 0.84–0.94), a lower chance of modified Thrombolysis in Cerebral Infarction (mTICI) grade 2b to 3 reperfusion (adjusted OR per 30 minutes increase in time = 0.93, 95% CI = 0.87–0.98), and an increased probability of symptomatic intracerebral hemorrhage (adjusted OR per 30 minutes increase in time = 1.09, 95% CI = 0.99–1.18). Interpretation: These findings provide a basis for further studies to determine if the functional outcome of patients with stroke can be greatly improved by optimizing IVT to EVT times. ANN NEUROL 2021;89:511–519.
Published: 2020

40. Mechanical Thrombectomy for Acute Ischemic Stroke Amid the COVID-19 Outbreak: Decreased Activity, and Increased Care Delays

Author: Basile Kerleroux, Thibaut Fabacher, Nicolas Bricout, Martin Moïse, Benoit Testud, Sivadji Vingadassalom, Héloïse Ifergan, Kévin Janot, Arturo Consoli, Wagih Ben Hassen, Eimad Shotar, Julien Ognard, Guillaume Charbonnier, Vincent L’Allinec, Alexis Guédon, Federico Bolognini, Gaultier Marnat, Géraud Forestier, Aymeric Rouchaud, Raoul Pop, Nicolas Raynaud, François Zhu, Jonathan Cortese, Vanessa Chalumeau, Jérome Berge, Simon Escalard, Grégoire Boulouis, Cyril Chivot, Riyad Hanafi, Anne Pasco, Jean-Baptiste Girot, Alessandra Biondi, Fortunato Di Caterino, Panagiotis Primikiris, Giovanni Vitale, Louise Bonnet, Florent Gariel, Xavier Barreau, Sabrina Debruxelles, Ludovic Lucas, Patrice Menegon, Stéphane Olindo, Mathilde Poli, Pauline Renou, Sharmila Sagnier, Igor Sibon, Louis Veunac, Jean-Christophe Gentric, Charlotte Barbier, Marion Boulanger, Julien Cogez, Sophie Guettier, Romain Schneckenburger, Emmanuel Touze, Mariette Delaitre, Pablo Lebendinsky, Mariano Musacchio, Frédéric Ricolfi, Pierre Thouant, François Caparros, Barbara Casolla, Lucie Della Schiava, Nelly Dequatre, Hilde Henon, Marco Pasi, Apolline Kazemi, Fouzi Bala, Laurent Estrade, Charbel Mounayer, Susanna Saleme, Francisco Macian-Montoro, Omer Eker, François Cotton, Karine Blanc-Lasserre, Serkan Cakmak, Tae-Hee Cho, Laurent Derex, Anne-Claire Lukaszewicz, Laura Mechtouff, Norbert Nighoghossian, Frédéric Philippeau, Roberto Riva, Francis Turjman, Anne-Evelyne Vallet, Xavier Carle, Philippe Dory-Lautrec, Anthony Reyre, Jean-François Hak, Hervé Brunel, Amel Benali, François-Louis Collemiche, Cyril Dargazanli, Frederico Cagnazzo, Imad Derraz, Caroline Arquizan, Lucas Corti, Vincent Costalat, Nicolas Gaillard, Grégory Gascou, Pierre-Henri Lefèvre, Isabelle Mourand, Carlos Riquelme, Anne Laure Derelle, Benjamin Gory, Liang Liao, Romain Tonnelet, René Anxionnat, Mathieu Bonnerot, Serge Bracard, Marc Braun, Lisa Humbertjean, Jean-Christophe Lacour, Gioia Mione, Sophie Planel, Sébastien Richard, Nolwenn Riou-Comte, Emmanuelle Schmitt, Romain Bourcier, Lili Detraz, Hubert Desal, Pierre-Louis Alexandre, Benjamin Daumas-Duport, Cédric Lenoble, Monica Roy, Oghuzan Coskun, Frederico Di Maria, Bertrand Lapergue, Georges Rodesch, Adrien Wang, David Weisenburger-Lile, Sergio Zimatore, Nadia Ajili, Géraldine Buard, Serge Evrard, Lucas Gorza, Julie Gratieux, Morgan Leguen, Sylvie Marinier, Fernando Pico, Roxanna Poll, Haja Rakotoharinandrasana, Philippe Tassan, Maya Tchikviladze, François Delvoye, Solène Hebert, Raphaël Blanc, Gabriele Ciccio, Jean-Philippe Desilles, Benjamin Maier, Mikael Mazighi, Michel Piotin, Hocine Redjem, Stanislas Smajda, Malek Ben Maacha, Ovide Corabianu, Thomas De Broucker, Olivier Ille, Eric Manchon, Michael Obadia, Mickael Obadia, Igor Raynouard, Roxanne Peres, Candice Sabben, Didier Smadja, Guillaume Taylor, Laurie-Anne Thion, Augustin Lecler, Laurent Spelle, Christian Denier, Jildaz Caroff, Olivier Chassin, laurent Spelle, Laura Venditti, Armand Aymard, Jean Betty, Vittorio Civelli, Michael Eliezer, Matteo Fantoni, Emmanuel Houdart, Marc-Antoine Labeyrie, Jean-Pierre Saint Maurice, Erwah Kalsoum, Aurelien Pacini, Chawkat Ramadane, Titien Tuilier, Adrien Villain, Frédéric Clarencon, Vincent Degos, Ahmed Elhfnawy, Mahmoud Elhorany, Stéphanie Lenck, Kevin Premat, Nader-Antoine Sourour, Sonia Alamowitch, Flore Baronnet, Sophie Crozier, Sandrine Deltour, Anne Leger, Charlotte Rosso, Nadya Pyatigorskaya, Christine Rodriguez Regent, Denis Trystram, Olivier Naggara, Pierre Seners, Guillaume Turc, Myriam Edjlali, Rémi Agbonon, Mohammed Alotaibi, Antoine Sonchet, Catherine Oppenheim, Jean François Meder, Joseph Benzakoun, Laurence Legrand, Cédric Fauché, Stéphane Velasco, Pierre François Manceau, Sebastien Solène Soize Moulin, François Eugene, Jean-Christophe Ferre, Christophe Paya, Jean-Yves Gauvrit, Sophie Langnier-Lemercier, Maria Lassale, helene Raoult, thomas Ronziere, Clément Tracol, Stéphane Vannier, Julien Burel, Julien Le Moal, Chrysanthi Papagiannaki, Mohamed Aggour, Marina Sachet, Claire Boutet, Remy Beaujeux, Anca Hasiu, Monica Manisor, Dan Mihoc, Stéphane Kremer, Charles Arteaga, Sébastien Gazzola, Jean Darcourt, Christophe Cognard, Fabrice Bonneville, Anne Christine Januel, Jean-Marc Olivot, Nicolas Raposo, Alain Viguier, Richard Bibi, Fakhreddine Boustia, Denis Herbreteau, Igor Maldonado, and Ana-Paula Narata
Subjects: Male, 2019-20 coronavirus outbreak, medicine.medical_specialty, Coronavirus disease 2019 (COVID-19), Mechanical Thrombolysis, Pneumonia, Viral, 030204 cardiovascular system & hematology, medicine.disease_cause, Brain Ischemia, Time-to-Treatment, 03 medical and health sciences, Betacoronavirus, 0302 clinical medicine, Patient Admission, Pandemic, Medicine, Humans, Prospective Studies, Acute ischemic stroke, Pandemics, Coronavirus, Aged, Advanced and Specialized Nursing, Aged, 80 and over, business.industry, SARS-CoV-2, Outbreak, COVID-19, Middle Aged, 3. Good health, Mechanical thrombectomy, Hospitalization, Stroke, Emergency medicine, Female, Neurology (clinical), France, Cardiology and Cardiovascular Medicine, business, Coronavirus Infections, Delivery of Health Care, 030217 neurology & neurosurgery, Procedures and Techniques Utilization
Abstract: Background and Purpose: The efficiency of prehospital care chain response and the adequacy of hospital resources are challenged amid the coronavirus disease 2019 (COVID-19) outbreak, with suspected consequences for patients with ischemic stroke eligible for mechanical thrombectomy (MT). Methods: We conducted a prospective national-level data collection of patients treated with MT, ranging 45 days across epidemic containment measures instatement, and of patients treated during the same calendar period in 2019. The primary end point was the variation of patients receiving MT during the epidemic period. Secondary end points included care delays between onset, imaging, and groin puncture. To analyze the primary end point, we used a Poisson regression model. We then analyzed the correlation between the number of MTs and the number of COVID-19 cases hospitalizations, using the Pearson correlation coefficient (compared with the null value). Results: A total of 1513 patients were included at 32 centers, in all French administrative regions. There was a 21% significant decrease (0.79; [95%CI, 0.76–0.82]; P P P R 2 −0.51; P =0.04). Patients treated during the COVID outbreak were less likely to receive intravenous thrombolysis and to have unwitnessed strokes (both P Conclusions: Our study showed a significant decrease in patients treated with MTs during the first stages of the COVID epidemic in France and alarming indicators of lengthened care delays. These findings prompt immediate consideration of local and regional stroke networks preparedness in the varying contexts of COVID-19 pandemic evolution.
Published: 2020

41. The ophthalmic artery: a new variant involving two branches from the supracavernous internal carotid artery

Author: Serge Bracard, Marc Braun, François Zhu, Liang Liao, Benjamin Gory, René Anxionnat, Imagerie Adaptative Diagnostique et Interventionnelle (IADI), Université de Lorraine (UL)-Institut National de la Santé et de la Recherche Médicale (INSERM), Département de neuroradiologie diagnostique et thérapeutique [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Faculté de Médecine [Nancy], and Université de Lorraine (UL)
Subjects: Male, Long posterior ciliary arteries, Embryonic Development, [SDV.IB.MN]Life Sciences [q-bio]/Bioengineering/Nuclear medicine, Aneurysm, Ruptured, Pathology and Forensic Medicine, 03 medical and health sciences, Ophthalmic Artery, Imaging, Three-Dimensional, medicine.artery, [INFO.INFO-IM]Computer Science [cs]/Medical Imaging, Medicine, Humans, Radiology, Nuclear Medicine and imaging, ComputingMilieux_MISCELLANEOUS, 0303 health sciences, medicine.diagnostic_test, business.industry, Anatomic Variation, Angiography, Anatomy, New variant, Middle Aged, Embryo, Mammalian, medicine.anatomical_structure, 030301 anatomy & morphology, Superior orbital fissure, Ophthalmic artery, Surgery, Internal carotid artery, business, Orbit, Carotid Artery, Internal, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, Artery, Orbit (anatomy)
Abstract: We report an extremely rare, double ophthalmic artery configuration. We present 2D- and 3D-angiographic features of an anomalous origin of the ophthalmic artery. The double ophthalmic artery was the result of the persistence of the primitive dorsal ophthalmic artery combined with the presence of a second orbital artery originating from the supracavernous internal carotid artery, passing through the superior orbital fissure and into the orbit to furnish the muscular, lacrimal and ethmoidal arteries and the medial long posterior ciliary artery. A heretofore undocumented instance of ophthalmic artery duplication is presented. Knowledge of such variations is important for the planning of endovascular treatments and the comprehension of unusual angiographic images. Such fine arterial variants may very well be frequent, but difficult to demonstrate on simple 2D angiographies. Multiplanar reconstructions of 3D angiography data make it possible to diagnose rare, but embryologically predictable arterial variants.
Published: 2020

42. Mechanical Thrombectomy for Acute Ischemic Stroke Amid the COVID-19 Outbreak in France: Decreased Activity, and Increased Care Delays

Author: Alexis Guédon, Julien Ognard, Géraud Forestier, Nicolas Bricout, Basile Kerleroux, Guillaume Charbonnier, Martin Moise, Wagih Ben Hassen, Simon Escalard, Gregoire Boulouis, Gaultier Marnat, Aymeric Rouchaud, Nicolas Raynaud, Raoul Pop, Jérôme Berge, Vanessa Chalumeau, Arturo Consolli, Sivadji Vingadassalom, Benoit Testud, Héloïse Ifergan, Eimad Shotar, Vincent L'Allinec, Jonathan Cortese, Kevin Janot, Federico Bolognini, François Zhu, and Thibaut Fabacher
Subjects: Mechanical thrombectomy, medicine.medical_specialty, Coronavirus disease 2019 (COVID-19), business.industry, Emergency medicine, Epidemiology, medicine, Outbreak, medicine.disease, business, Acute ischemic stroke, Stroke
Published: 2020

43. Local Anesthesia Without Sedation During Thrombectomy for Anterior Circulation Stroke Is Associated With Worse Outcome

Author: Francesco Benvegnù, Sébastien Richard, Gaultier Marnat, Romain Bourcier, Julien Labreuche, Mohammad Anadani, Igor Sibon, Cyril Dargazanli, Caroline Arquizan, René Anxionnat, Gérard Audibert, François Zhu, Mikaël Mazighi, Raphaël Blanc, Bertrand Lapergue, Arturo Consoli, Benjamin Gory, Michel Piotin, Hocine Redjem, Simon Escalard, Jean-Philippe Desilles, Gabriele Ciccio, Stanislas Smajda, Mikael Obadia, Candice Sabben, Ovide Corabianu, Thomas de Broucker, Didier Smadja, Sonia Alamowitch, Olivier Ille, Eric Manchon, Pierre-Yves Garcia, Guillaume Taylor, Malek Ben Maacha, Adrien Wang, Serge Evrard, Maya Tchikviladze, Nadia Ajili, David Weisenburger, Lucas Gorza, Oguzhan Coskun, Federico Di Maria, Georges Rodesh, Morgan Leguen, Julie Gratieux, Fernando Pico, Haja Rakotoharinandrasana, Philippe Tassan, Roxanna Poll, Sylvie Marinier, Florent Gariel, Xavier Barreau, Jérôme Berge, Louis Veunac, Patrice Menegon, Ludovic Lucas, Stéphane Olindo, Pauline Renou, Sharmila Sagnier, Mathilde Poli, Sabrina Debruxelles, Thomas Tourdias, Jean-Sebastien Liegey, Lili Detraz, Benjamin Daumas-Duport, Pierre-Louis Alexandre, Monica Roy, Cédric Lenoble, Vincent L’allinec, Jean-Baptiste Girot, Hubert Desal, Isabelle Costa, Serge Bracard, Marc Braun, Anne-Laure Derelle, Romain Tonnelet, Liang Liao, Emmanuelle Schmitt, Sophie Planel, Lisa Humbertjean, Gioia Mione, Jean-Christophe Lacour, Nolwenn Riou-Comte, Gabriela Hossu, Marine Beaumont, Mitchelle Bailang, Marie Reitter, Agnès Masson, Lionel Alb, Adriana Tabarna, Marcela Voicu, Iona Podar, Madalina Brezeanu, Vincent Costalat, Grégory Gascou, Pierre-Henri Lefèvre, Imad Derraz, Carlos Riquelme, Nicolas Gaillard, Isabelle Mourand, Lucas Corti, Universita degli Studi di Padova, Service de neurologie [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Défaillance Cardiovasculaire Aiguë et Chronique (DCAC), Université de Lorraine (UL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), CHU Bordeaux [Bordeaux], Institut de Recherche en Santé de l'Université de Nantes (IRS-UN), Service d'Epidémiologie et de Santé Publique [Lille], Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Washington University School of Medicine in St. Louis, Washington University in Saint Louis (WUSTL), Département de Neuroradiologie[Montpellier], Hôpital Gui de Chauliac [Montpellier]-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Université Montpellier 1 (UM1)-Université de Montpellier (UM), Hôpital Gui de Chauliac, Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Département de neuroradiologie diagnostique et thérapeutique [CHRU Nancy], Imagerie Adaptative Diagnostique et Interventionnelle (IADI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Service de Soins Intensifs [CHRU Nancy], Hôpital Rothschild [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), and Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)
Subjects: Sedation, [SDV]Life Sciences [q-bio], Anesthetic management, 030204 cardiovascular system & hematology, anesthesia, 03 medical and health sciences, 0302 clinical medicine, Medicine, Local anesthesia, Stroke, propensity score, Advanced and Specialized Nursing, business.industry, conscious sedation, medicine.disease, stroke, 3. Good health, reperfusion, Mechanical thrombectomy, thrombectomy, Anesthesia, Propensity score matching, Neurology (clinical), medicine.symptom, Cardiology and Cardiovascular Medicine, business, [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing, 030217 neurology & neurosurgery, Large vessel occlusion
Abstract: Background and Purpose: The best anesthetic management for mechanical thrombectomy of large vessel occlusion strokes is still uncertain and could impact the quality of reperfusion and clinical outcome. We aimed to compare the efficacy and safety outcomes between local anesthesia (LA) and conscious sedation in a large cohort of acute ischemic stroke patients with anterior circulation large vessel occlusion strokes treated with mechanical thrombectomy in current, everyday clinical practice. Methods: Patients undergoing mechanical thrombectomy for anterior large vessel occlusion strokes at 4 comprehensive stroke centers in France between January 1, 2018, and December 31, 2018, were pooled from the ongoing prospective multicenter observational Endovascular Treatment in Ischemic Stroke Registry in France. Intention-to-treat and per-protocol analyses were used. Results: Among the included 1034 patients, 762 were included in the conscious sedation group and 272 were included in the LA group. In the propensity score matched cohort, the rate of favorable outcome (90-day modified Rankin Scale score 0–2) was significantly lower in the LA group than in the conscious sedation group (40.0% versus 52.0%, matched relative risk=0.76 [95% CI, 0.60–0.97]), as well as the rate of successful reperfusion (modified Thrombolysis in Cerebral Infarction grade 2b–3; 76.6% versus 87.1%; matched relative risk=0.88 [95% CI, 0.79–0.98]). There was no difference in procedure time between the 2 groups. In the inverse probability of treatment weighting-propensity score-adjusted cohort, similar significant differences were found for favorable outcomes and successful reperfusion. In inverse probability of treatment weighting-propensity score-adjusted cohort, a higher rate of 90-day mortality and a lower parenchymal hematoma were observed after LA. The sensitivity analysis restricted to our per-protocol sample provided similar results in the matched- and inverse probability of treatment weighting-propensity cohorts. Conclusions: In the Endovascular Treatment in Ischemic Stroke registry mainly included patients in early time window (
Published: 2020

44. Effect of the phenotype of the M1-middle cerebral artery occlusion on the recanalization rates in the ASTER trial

Author: Suzana Saleme, Francesco Puccinelli, Vincent Costalat, Pascal J. Mosimann, Serge Bracard, Julien Labreuche, Romain Bourcier, Raphaël Blanc, Alain Duhamel, Arturo Consoli, Benjamin Gory, Gaultier Marnat, François Zhu, Cyril Dargazanli, Maeva Kyheng, Bertrand Lapergue, Michel Piotin, Hubert Desal, Hôpital Foch [Suresnes], Imagerie Adaptative Diagnostique et Interventionnelle (IADI), Université de Lorraine (UL)-Institut National de la Santé et de la Recherche Médicale (INSERM), Département de neuroradiologie diagnostique et thérapeutique [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Centre hospitalier universitaire de Nantes (CHU Nantes), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), CHU Bordeaux [Bordeaux], Evaluation des technologies de santé et des pratiques médicales - ULR 2694 (METRICS), Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille)-Université de Lille, Hôpital Rothschild [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de Neuroradiologie interventionnelle [CHU Limoges], CHU Limoges, Département de Neuroradiologie[Montpellier], Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Gui de Chauliac [Montpellier]-Université de Montpellier (UM), Centre Hospitalier Universitaire Vaudois [Lausanne] (CHUV), Bern University Hospital [Berne] (Inselspital), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), CHU Rothschild [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Gui de Chauliac [CHU Montpellier], and Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Université de Montpellier (UM)
Subjects: Male, medicine.medical_specialty, medicine.medical_treatment, Cerebral arteries, Population, [SDV.IB.MN]Life Sciences [q-bio]/Bioengineering/Nuclear medicine, 030204 cardiovascular system & hematology, Brain Ischemia, 03 medical and health sciences, 0302 clinical medicine, Double-Blind Method, Internal medicine, Occlusion, medicine, [INFO.INFO-IM]Computer Science [cs]/Medical Imaging, Humans, Middle cerebral artery occlusion, education, Stent retriever, Aged, Thrombectomy, education.field_of_study, medicine.diagnostic_test, business.industry, Stent, Infarction, Middle Cerebral Artery, General Medicine, Middle Aged, Phenotype, Stroke, Treatment Outcome, Angiography, Cardiology, Surgery, Female, Stents, Neurology (clinical), business, 030217 neurology & neurosurgery, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract: IntroductionAn adequate recanalization grade is an independent predictor of a good clinical outcome in patients with acute ischemic stroke. It can be obtained with stent retrievers (SR) and contact aspiration (CA). The aim of this ancillary study of the ASTER trial was to investigate the effect of the regular and irregular phenotype of the M1-middle cerebral artery (M1-MCA) segment occlusion on the procedural and clinical outcomes in the ASTER trial population.MethodsThe predetermined occlusion phenotype assessment was performed by the core laboratory of the ASTER trial and patients with M1-MCA occlusion were included in this study. Clinical and procedural outcomes were analyzed according to the technique used and to the occlusion phenotype.Results188 patients were included in the analysis (95 received SR, 93 CA as first-line treatment). The occlusion phenotypes were graded as irregular in 52.7% of cases (n=99, 95% CI 45.5% to 59.8%). In patients with an irregular occlusion phenotype, complete or adequate recanalization at the end of the first-line strategy was more often achieved with SR than CA (TICI 3: SR 44.1% vs CA 22.5%, OR 0.35, 95% CI 0.14 to 0.89, p=0.027), with a shorter procedure time, a lower number of passes (>2 passes: SR 32.2% vs CA 57.5%, OR 3.31, 95% CI 1.36 to 8.03, p=0.009), and higher rates of favorable clinical outcome (SR 55.2% vs CA 31.6%, OR 0.40, 95% CI 0.16 to 0.97, p=0.042).ConclusionIrregular M1-MCA occlusion phenotypes treated with SR as first-line approach were associated with better procedural and clinical outcomes in the ASTER trial population
Published: 2019

45. Emergent Carotid Stenting Plus Thrombectomy After Thrombolysis in Tandem Strokes

Author: Mohammad Anadani, Alejandro M. Spiotta, Ali Alawieh, Francis Turjman, Michel Piotin, Diogo C. Haussen, Raul G. Nogueira, Panagiotis Papanagiotou, Adnan H. Siddiqui, Bertrand Lapergue, Franziska Dorn, Christophe Cognard, Marc Ribo, Marios N. Psychogios, Marc Antoine Labeyrie, Mikael Mazighi, Alessandra Biondi, René Anxionnat, Serge Bracard, Sébastien Richard, Benjamin Gory, Jonathan Andrew Grossberg, Adrien Guenego, Julien Darcourt, Isabelle Vukasinovic, Elisa Pomero, Jason Davies, Leonardo Renieri, Corentin Hecker, Maria Muchada Muchada, Arturo Consoli, Georges Rodesch, Emmanuel Houdart, Raymond Turner, Aquilla Turk, Imran Chaudry, Johanna Lockau, Andreas Kastrup, Raphaël Blanc, Hocine Redjem, Daniel Behme, Hussain Shallwani, Maurer Christopher, Gioia Mione, Lisa Humbertjean, Jean-Christophe Lacour, François Zhu, Anne-Laure Derelle, Romain Tonnelet, and Liang Liao
Subjects: medicine.medical_specialty, Carotid arteries, medicine.medical_treatment, Population, 030204 cardiovascular system & hematology, Brain Ischemia, 03 medical and health sciences, 0302 clinical medicine, Fibrinolytic Agents, Internal medicine, Occlusion, medicine, Humans, Effective treatment, Thrombolytic Therapy, Registries, education, Acute ischemic stroke, Thrombectomy, Advanced and Specialized Nursing, education.field_of_study, business.industry, Thrombolysis, 3. Good health, Stroke, Mechanical thrombectomy, Carotid Arteries, Treatment Outcome, Tissue Plasminogen Activator, Cardiology, Stents, Neurology (clinical), Carotid stenting, Cardiology and Cardiovascular Medicine, business, 030217 neurology & neurosurgery
Abstract: Background and Purpose— Emergent carotid artery stenting plus mechanical thrombectomy is an effective treatment for acute ischemic stroke patients with tandem occlusion of the anterior circulation. However, there is limited data supporting the safety of this approach in patients treated with prior intravenous thrombolysis (IVT). We aimed to investigate the safety of emergent carotid artery stenting-mechanical thrombectomy approach in stroke patient population treated with prior IVT. Methods— We assessed patients with acute ischemic stroke because of atherosclerotic tandem occlusion that were treated with emergent carotid artery stenting-mechanical thrombectomy approach from the multicenter observational Thrombectomy in Tandem Lesions registry. Patients were divided into 2 groups based on pretreatment IVT (IVT versus no-IVT). Intracerebral hemorrhages were classified according to the European Cooperative Acute Stroke Study II criteria. Results— Among 205 patients included in the present study, 125 (60%) received prior IVT. Time from symptoms onset-to-groin puncture was shorter (234±100 versus 256±234 minutes; P =0.002), and heparin use was less in the IVT group (14% versus 35%; P P =0.544), parenchymal hematoma type 1 to 2 (15% versus 18%; P =0.647), successful reperfusion (modified Thrombolysis in Cerebral Ischemia 2b–3), or 90-day favorable outcome (modified Rankin Scale score of 0–2 at 90 days). The 90-day all-cause mortality rate was significantly lower in the IVT group (8% versus 20%; P =0.017). After adjusting for covariates, IVT was not associated with symptomatic intracerebral hemorrhage or 90-day mortality. Conclusions— Emergent carotid artery stenting-mechanical thrombectomy approach was not associated with an increased risk of hemorrhagic complications in tandem occlusion patients who received IVT before the intervention.
Published: 2019

46. Impact of Pretreatment Ischemic Location on Functional Outcome after Thrombectomy

Author: Marc Soudant, Gabriela Hossu, Jacques Felblinger, Serge Bracard, Yu Xie, François Zhu, Julien Oster, Ioannis Douros, Liang Liao, Francis Guillemin, Emilien Micard, and Bailiang Chen
Subjects: Medicine (General), medicine.medical_specialty, Internal capsule, stroke, ischemia, outcome, thrombectomy, business.industry, Postcentral gyrus, Middle temporal gyrus, Clinical Biochemistry, Uncinate fasciculus, medicine.disease, Article, Lateralization of brain function, R5-920, Supramarginal gyrus, Internal medicine, medicine, Cardiology, business, Paracentral lobule, Stroke
Abstract: Pretreatment ischemic location may be an important determinant for functional outcome prediction in acute ischemic stroke. In total, 143 anterior circulation ischemic stroke patients in the THRACE study were included. Ischemic lesions were semi-automatically segmented on pretreatment diffusion-weighted imaging and registered on brain atlases. The percentage of ischemic tissue in each atlas-segmented region was calculated. Statistical models with logistic regression and support vector machine were built to analyze the predictors of functional outcome. The investigated parameters included: age, baseline National Institutes of Health Stroke Scale score, and lesional volume (three-parameter model), together with the ischemic percentage in each atlas-segmented region (four-parameter model). The support vector machine with radial basis functions outperformed logistic regression in prediction accuracy. The support vector machine three-parameter model demonstrated an area under the curve of 0.77, while the four-parameter model achieved a higher area under the curve (0.82). Regions with marked impacts on outcome prediction were the uncinate fasciculus, postcentral gyrus, putamen, middle occipital gyrus, supramarginal gyrus, and posterior corona radiata in the left hemisphere; and the uncinate fasciculus, paracentral lobule, temporal pole, hippocampus, inferior occipital gyrus, middle temporal gyrus, pallidum, and anterior limb of the internal capsule in the right hemisphere. In conclusion, pretreatment ischemic location provided significant prognostic information for functional outcome in ischemic stroke.
Published: 2021

47. Facteurs prédictifs d’une indépendance fonctionnelle après infarctus cérébral sur occlusion artérielle proximale

Author: Benjamin Gory, Nolwenn Riou-Comte, Francis Guillemin, Gabriela Hossu, François Zhu, S. Richard, Serge Bracard, investigateurs de l’essai clinique Thrace, and Marc Soudant
Subjects: Epidemiology, Public Health, Environmental and Occupational Health
Abstract: Etat de la question La thrombolyse intraveineuse combinee a la thrombectomie mecanique est actuellement le « gold standard » dans le traitement des infarctus aigus sur occlusion arterielles intracrâniennes proximales : la plupart des patients accedent a une reperfusion optimale. Cependant, certains de ces patients n’evolueront pas vers une independance fonctionnelle. Nous avons donc cherche a predire l’independance fonctionnelle a trois mois dans une cohorte de patients avec un infarctus sur occlusion arterielle proximale et une reperfusion optimale apres traitement. Materiel et methodes L’ensemble des patients souffrant d’une occlusion arterielle intracrânienne proximale aigue avec obtention d’une reperfusion optimale, issus des cohortes THRACE et du registre ETIS ont ete inclus. Le critere de jugement principal etait l’independance fonctionnelle a trois mois definie par un score de Rankin modifie (mRS) ≤ 2. A partir des donnees sociodemographiques, cliniques et radiologiques d’admission, la modelisation a fait appel a une regression logistique pas-a-pas ascendante, avec imputation des donnees manquantes et etude de la validite interne par bootstrap. La discrimination etait evaluee par le c-statistic. Resultats Sur 139 patients inclus (âge moyen, 65,5 ans ; femmes, 54,3 %), les facteurs predictifs d’une independance fonctionnelle a trois mois (n = 82) etait le jeune âge (OR, 0,70 par augmentation de 10 ans ; IC95 %, 0,49-0,98), un score « National Institutes of Health Stroke Scale » (NIHSS) faible (OR, 0,91 ; CI95 %, 0,84-0,99) et un « Alberta Stroke Program Early CT Score » (ASPECTS) eleve (OR, 1,14 ; 95 %CI, 1,25–2,07). Le modele de prediction obtenu presentait une bonne discrimination (c-statistic, 0,80 ; 95 %CI, 0,72–0,88) confirmee apres validation interne. Conclusion Apres reperfusion optimale, l’âge, le score NIHSS et l’ASPECTS sont predictifs de l’independance fonctionnelle a trois mois et permettent de discriminer correctement les patients ayant une evolution clinique favorable des autres.
Published: 2020

48. 'Adaptative endovascular strategy to the CloT MRI in large intracranial vessel occlusion' (VECTOR): Study protocol of a randomized control trial

Author: Wagih Benhassen, Cyril Dargazanli, Gregoire Boulouis, Lili Detraz, Kevin Premat, Romain Bourcier, Bertrand Lapergue, Gaultier Marnat, Kevin Janot, Julien Labreuche, Julien Ognard, Matteo Cappucci, Sébastien Soize, Anthony Lebras, Basile Kerleroux, Aymeric Rouchaud, François Eugène, Hubert Desal, Vincent L'Allinec, Arthuro Consoli, Cyril Chivot, Thomas Personnic, Vanessa Chalumeau, François Zhu, Géraud Forestier, Eimad Shotar, Frédéric Bourdain, UMR930, Imagerie et cerveau, Université Francois Rabelais [Tours], Département de neuroradiologie diagnostique et thérapeutique [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Centre Hospitalier Régional Universitaire de Tours (CHRU TOURS), Neuroradiologie [Hôpital Gui de Chauliac], Hôpital Gui de Chauliac [Montpellier], Université Paris Descartes - Faculté de Médecine (UPD5 Médecine), Université Paris Descartes - Paris 5 (UPD5), Service de Neuroradiologie [CHU Pitié-Salpêtrière], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de radiologie et imagerie médicale [Rennes] = Radiology [Rennes], CHU Pontchaillou [Rennes], Département de Neuroradiologie[Montpellier], Hôpital Gui de Chauliac [Montpellier]-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Université Montpellier 1 (UM1)-Université de Montpellier (UM), Département de Neuro-Radiologie [Bordeaux] (DNR - Bordeaux), CHU Bordeaux [Bordeaux], Centre hospitalier universitaire de Nantes (CHU Nantes), Laboratoire de Traitement de l'Information Medicale (LaTIM), Université européenne de Bretagne - European University of Brittany (UEB)-Université de Brest (UBO)-Télécom Bretagne-Institut Mines-Télécom [Paris] (IMT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre Hospitalier Régional Universitaire de Brest (CHRU Brest), Université de Reims Champagne-Ardenne (URCA), Service de Neurologie, Hôpital Foch [Suresnes], Evaluation des technologies de santé et des pratiques médicales - ULR 2694 (METRICS), Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Service de Radiologie et Imagerie Médicale [CHU Limoges], CHU Limoges, Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Gui de Chauliac [Montpellier]-Université de Montpellier (UM), Université européenne de Bretagne - European University of Brittany (UEB)-Télécom Bretagne-Centre Hospitalier Régional Universitaire de Brest (CHRU Brest)-Université de Brest (UBO)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut Mines-Télécom [Paris] (IMT), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université, Service de radiologie et imagerie médicale [Rennes], Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Hôpital Pontchaillou-CHU Pontchaillou [Rennes], Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille)-Université de Lille, Hôpital Gui de Chauliac [CHU Montpellier], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Gui de Chauliac [CHU Montpellier], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Université de Montpellier (UM), Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-CHU Pitié-Salpêtrière [APHP], and Santé publique : épidémiologie et qualité des soins-EA 2694 (CERIM)
Subjects: medicine.medical_specialty, Vessel occlusion, 030218 nuclear medicine & medical imaging, law.invention, 03 medical and health sciences, 0302 clinical medicine, Randomized controlled trial, law, medicine, Humans, Multicenter Studies as Topic, Radiology, Nuclear Medicine and imaging, In patient, Prospective Studies, cardiovascular diseases, ComputingMilieux_MISCELLANEOUS, Randomized Controlled Trials as Topic, Thrombectomy, Radiological and Ultrasound Technology, business.industry, Endovascular Procedures, Magnetic Resonance Imaging, cardiovascular system, [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], Neurology (clinical), Radiology, Intracranial Thrombosis, business, 030217 neurology & neurosurgery
Abstract: A correlation between the susceptibility vessel sign (SVS) and red thrombi has been identified in MRI. We hypothesized that the Embotrap allow better retrieving of SVS+ thrombi. The AdaptatiVe Endovascular strategy to the CloT MRI in large intracranial vessel Occlusion (VECTOR) trial is a multicenter, prospective and randomized study designed to compare a first-line strategy combining Embotrap added to contact aspiration (CA) versus CA alone in patients with SVS+ occlusions.
Published: 2019

49. Periprocedural Heparin During Endovascular Treatment of Tandem Lesions in Patients with Acute Ischemic Stroke: A Propensity Score Analysis from TITAN Registry

Author: François, Zhu, Michel, Piotin, Henrik, Steglich-Arnholm, Julien, Labreuche, Markus, Holtmannspötter, Christian, Taschner, Sebastian, Eiden, Diogo C, Haussen, Raul G, Nogueira, Panagiotis, Papanagiotou, Maria, Boutchakova, Adnan H, Siddiqui, Bertrand, Lapergue, Franziska, Dorn, Christophe, Cognard, Monika, Killer-Oberpfalzer, Salvatore, Mangiafico, Marc, Ribo, Marios N, Psychogios, Alejandro, Spiotta, Mohammad, Anadani, Marc-Antoine, Labeyrie, Mikael, Mazighi, Alessandra, Biondi, Sébastien, Richard, René, Anxionnat, Serge, Bracard, Francis, Turjman, Benjamin, Gory, Jean-Christophe, Lacour, Département de neuroradiologie diagnostique et thérapeutique [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Imagerie Adaptative Diagnostique et Interventionnelle (IADI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Hôpital Rothschild [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Rigshospitalet [Copenhagen], Copenhagen University Hospital, Evaluation des technologies de santé et des pratiques médicales - ULR 2694 (METRICS), Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Freiburg University Medical Center, Emory University School of Medicine, Emory University [Atlanta, GA], Klinikum Bremen-Mitte, University at Buffalo [SUNY] (SUNY Buffalo), State University of New York (SUNY), Hôpital Foch [Suresnes], University-Hospital Munich-Großhadern [München], Service de neuroradiologie [CHU Toulouse], CHU Toulouse [Toulouse], Paracelsus Medizinische Privatuniversität = Paracelsus Medical University (PMU), Careggi University Hospital, Vall d'Hebron University Hospital [Barcelona], University Medical Center Göttingen (UMG), Medical University of South Carolina [Charleston] (MUSC), Service de Neuroradiologie [CHU Lariboisière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Lariboisière-Fernand-Widal [APHP], Service de Neuroradiologie [CHRU Besançon], Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), Défaillance Cardiovasculaire Aiguë et Chronique (DCAC), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Service de neurologie [CHRU Nancy], Hospices Civils de Lyon (HCL), CHU Rothschild [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Universitäts Klinikum Freiburg = University Medical Center Freiburg (Uniklinik), Pôle Cardiovasculaire et Métabolique [CHU Toulouse], and Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)
Subjects: Male, medicine.medical_specialty, Time Factors, Endovascular Treatment, Brain Ischemia, 030218 nuclear medicine & medical imaging, Tandem occlusion, 03 medical and health sciences, Anticoagulation, 0302 clinical medicine, Modified Rankin Scale, Occlusion, medicine, Humans, Radiology, Nuclear Medicine and imaging, Prospective Studies, Registries, Propensity Score, Stroke, Acute ischemic stroke, Retrospective Studies, Thrombectomy, business.industry, Heparin, Endovascular Procedures, Anticoagulants, Middle Aged, medicine.disease, Combined Modality Therapy, 3. Good health, Surgery, Treatment Outcome, Propensity score matching, Cohort, Female, Observational study, Cardiology and Cardiovascular Medicine, business, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, medicine.drug
Abstract: International audience; Background and purpose: Data on safety and efficacy of periprocedural use of heparin are limited during treatment of acute ischemic stroke patients with anterior circulation tandem occlusion. This study aimed to investigate the impact of heparin use during endovascular therapy of anterior circulation tandem occlusions on the functional and safety outcomes.Methods: A retrospective analysis of the multicenter observational TITAN registry was performed. Patients with anterior circulation tandem occlusion and treated with endovascular therapy (EVT) were included, with or without extracranial carotid intervention. We divided patients into two groups based on periprocedural heparin use (heparin vs. non-heparin). The dose of intravenous unfractionated heparin ranged from 1500 to 2500 I.U. Primary study endpoint was 90-day Modified Rankin Scale (mRS). Secondary study endpoint included angiographic and safety endpoints such as hemorrhagic complications. A propensity-score-matched analysis was performed.Results: Among 369 patients, heparin was used in 68 patients (18.4%). In the propensity-score-matched cohort, favorable outcome (mRS 0-2) occurred in 51.3% in heparin group and 58.0% in non-heparin group (matched OR, 0.76; 95% CI, 0.32-1.78; P = 0.52). Similar result was found in propensity-score-adjusted cohort (adjusted OR, 0.72; 95%CI, 0.39-1.32; P = 0.28). Likewise, there was no difference in the rate of successful reperfusion (mTICI 2b-3) (propensity-score-adjusted OR, 1.03; 95%CI, 0.50-2.09; P = 0.93) neither in safety endpoints between the two groups.Conclusions: Periprocedural heparin use during EVT of anterior circulation tandem occlusions was not associated with better functional, angiographic or safety outcomes. These findings are applicable for low doses of heparin, and further studies are warranted.
Published: 2019

50. Mothership versus drip and ship for thrombectomy in patients who had an acute stroke: a systematic review and meta-analysis

Author: René Anxionnat, Raphaël Blanc, Michel Piotin, Udi Sadeh-Gonik, Bertrand Lapergue, Mohammad Ismail, Gioia Mione, Mikael Mazighi, Xavier Armoiry, Jean-Christophe Lacour, Lisa Humbertjean, Charlotte Barbier, Sébastien Richard, Serge Bracard, Noam Tau, Benjamin Gory, Emmanuelle Schmitt, François Zhu, Service de Neurologie [CHU Caen], Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Tumorothèque de Caen Basse-Normandie (TCBN), Centre Hospitalier Lyon Sud [CHU - HCL] (CHLS), Hospices Civils de Lyon (HCL), Warwick Medical School, University of Warwick [Coventry], University of Toronto, Département de neuroradiologie diagnostique et thérapeutique [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Imagerie Adaptative Diagnostique et Interventionnelle (IADI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Tel Aviv Sourasky Medical Center [Te Aviv], Hôpital de la Fondation Ophtalmologique Adolphe de Rothschild [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de neurologie [CHRU Nancy], Centre d'investigation clinique plurithématique Pierre Drouin [Nancy] (CIC-P), Centre d'investigation clinique [Nancy] (CIC), Université de Lorraine (UL)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM), Défaillance Cardiovasculaire Aiguë et Chronique (DCAC), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN), and Hôpital Foch [Suresnes]
Subjects: medicine.medical_specialty, medicine.medical_treatment, [SDV.IB.MN]Life Sciences [q-bio]/Bioengineering/Nuclear medicine, Brain Ischemia, 030218 nuclear medicine & medical imaging, law.invention, 03 medical and health sciences, 0302 clinical medicine, Fibrinolytic Agents, Randomized controlled trial, law, Modified Rankin Scale, Internal medicine, medicine, [INFO.INFO-IM]Computer Science [cs]/Medical Imaging, Humans, Stroke, Aged, Retrospective Studies, Thrombectomy, Cerebral infarction, business.industry, Retrospective cohort study, Cerebral Infarction, General Medicine, Thrombolysis, Middle Aged, medicine.disease, 3. Good health, Treatment Outcome, Relative risk, Meta-analysis, Reperfusion, Administration, Intravenous, Female, Surgery, Neurology (clinical), business, Intracranial Hemorrhages, 030217 neurology & neurosurgery, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract: BackgroundThe effectiveness of mechanical thrombectomy (MT) in acute ischemic stroke due to large vessel occlusion is time-dependent. While only stroke centers with endovascular capabilities perform MT, many patients who had a stroke initially present to the closest primary stroke centers capable of administering earlier intravenous thrombolysis, and then require to be transferred to a comprehensive stroke center for MT.PurposeTo compare the outcomes of this care pathway (drip and ship (DS)) with that whereby patients are directly transferred to a comprehensive stroke center (mothership (MS)).MethodsWe performed a systematic review and meta-analysis of published studies using several electronic databases to determine whether successful reperfusion (modified Thrombolysis In Cerebral Infarction ≥2b), functional independence at 90 days (modified Rankin Scale score ≤2), symptomatic intracranial hemorrhage, and 90-day mortality differed between those who underwent MT with the DS or the MS treatment pathway. Outcomes were meta-analyzed and the results expressed as adjusted relative risk (aRR) for the primary analysis and unadjusted relative risk (uRR) for secondary analysis.ResultsEight studies including 2068 patients were selected, including one study reporting results fully adjusted for baseline characteristics. Patients undergoing MS had better functional independence than those undergoing DS (uRR=0.87, 95% CI 0.81 to 0.93; aRR=0.87, 95% CI 0.77 to 0.98). No difference was found between the treatment pathways in successful reperfusion (uRR=1.05, 95% CI 0.95 to 1.15; aRR=1.00, 95% CI 0.92 to 1.10), symptomatic intracranial hemorrhage (uRR=1.37, 95% CI 0.91 to 2.06; aRR, 1.53, 95% CI 0.79 to 2.98), and 90-day mortality (uRR=1.00, 95% CI 0.84 to 1.19; aRR=1.21, 95% CI 0.89 to 1.64).ConclusionsPatients who had an acute ischemic stroke admitted directly to a comprehensive stroke center (MS patients) with endovascular capacities may have better 90-day outcomes than those receiving DS treatment. However, major limitations of current evidence (ie, retrospective studies and selection bias) suggest a need for adequately powered studies. Multicenter randomized controlled trials are expected to answer this question.
Published: 2019

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