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1. Standardized mortality ratios for regionalized acute cardiovascular care

Author: Sanne J. den Hartog, Bob Roozenbeek, Sjoukje van der Bij, Marzyeh Amini, Nikki van Leeuwen, Eric Boersma, Clemens M.F. Dirven, Diederik W.J. Dippel, and Hester F. Lingsma
Subjects: Quality of care, Cardiovascular care, Quality indicators, Public aspects of medicine, RA1-1270
Abstract: Abstract Background Standardized Mortality Ratios (SMRs) are case-mix adjusted mortality rates per hospital and are used to evaluate quality of care. However, acute care is increasingly organized on a regional level, with more severe patients admitted to specialized hospitals. We hypothesize that the current case-mix adjustment insufficiently captures differences in case-mix between non-specialized and specialized hospitals. We aim to improve the SMR by adding proxies of disease severity to the model and by calculating a regional SMR (RSMR) for acute cerebrovascular disease (CVD) and myocardial infarction (MI). Methods We used data from the Dutch National Basic Registration of Hospital Care. We selected all admissions from 2016 to 2018. SMRs and RSMRs were calculated by dividing the observed in-hospital mortality by the expected in-hospital mortality. The expected in-hospital mortality was calculated using logistic regression with adjustment for age, sex, socioeconomic status, severity of main diagnosis, urgency of admission, Charlson comorbidity index, place of residence before admission, month/year of admission, and in-hospital mortality as outcome. Results The IQR of hospital SMRs of CVD was 0.85–1.10, median 0.94, with higher SMRs for specialized hospitals (median 1.12, IQR 1.00-1.28, 71%-SMR > 1) than for non-specialized hospitals (median 0.92, IQR 0.82–1.07, 32%-SMR > 1). The IQR of RSMRs was 0.92–1.09, median 1.00. The IQR of hospital SMRs of MI was 0.76–1.14, median 0.98, with higher SMRs for specialized hospitals (median 1.00, IQR 0.89–1.25, 50%-SMR > 1 versus median 0.94, IQR 0.74–1.11, 44%-SMR > 1). The IQR of RSMRs was 0.90–1.08, median 1.00. Adjustment for proxies of disease severity mostly led to lower SMRs of specialized hospitals. Conclusion SMRs of acute regionally organized diseases do not only measure differences in quality of care between hospitals, but merely measure differences in case-mix between hospitals. Although the addition of proxies of disease severity improves the model to calculate SMRs, real disease severity scores would be preferred. However, such scores are not available in administrative data. As a consequence, the usefulness of the current SMR as quality indicator is very limited. RSMRs are potentially more useful, since they fit regional organization and might be a more valid representation of quality of care.
Published: 2023
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2. Validity of Early Outcomes as Indicators for Comparing Hospitals on Quality of Stroke Care

Author: Marzyeh Amini, Frank Eijkenaar, Hester F. Lingsma, Sanne J. den Hartog, Susanne G. H. Olthuis, Jasper Martens, Bart van der Worp, Wim van Zwam, Anouk van der Hoorn, Stefan D. Roosendaal, Bob Roozenbeek, Diederik Dippel, and Nikki van Leeuwen
Subjects: acute ischemic stroke, case‐mix, early outcome, expanded thrombolysis in cerebral infarction, hospitals' patient volume, National Institutes of Health Stroke Scale, Diseases of the circulatory (Cardiovascular) system, RC666-701
Abstract: Background Insight into outcome variation between hospitals could help to improve quality of care. We aimed to assess the validity of early outcomes as quality indicators for acute ischemic stroke care for patients treated with endovascular therapy (EVT). Methods and Results We used data from the MR CLEAN (Multicenter Randomized Controlled Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands) Registry, a large multicenter prospective cohort study including 3279 patients with acute ischemic stroke undergoing EVT. Random effect linear and proportional odds regression were used to analyze the effect of case mix on between‐hospital differences in 2 early outcomes: the National Institutes of Health Stroke Scale (NIHSS) score at 24 to 48 hours and the expanded thrombolysis in cerebral infarction score. Between‐hospital variation in outcomes was assessed using the variance of random hospital effects (tau2). In addition, we estimated the correlation between hospitals' EVT‐patient volume and (case‐mix–adjusted) outcomes. Both early outcomes and case‐mix characteristics varied significantly across hospitals. Between‐hospital variation in the expanded thrombolysis in cerebral infarction score was not influenced by case‐mix adjustment (tau 2=0.17 in both models). In contrast, for the NIHSS score at 24 to 48 hours, case‐mix adjustment led to a decrease in variation between hospitals (tau 2 decreases from 0.19 to 0.17). Hospitals' EVT‐patient volume was strongly correlated with higher expanded thrombolysis in cerebral infarction scores (r=0.48) and weakly with lower NIHSS score at 24 to 48 hours (r=0.15). Conclusions Between‐hospital variation in NIHSS score at 24 to 48 hours is significantly influenced by case‐mix but not by patient volume. In contrast, between‐hospital variation in expanded thrombolysis in cerebral infarction score is strongly influenced by EVT‐patient volume but not by case‐mix. Both outcomes may be suitable for comparing hospitals on quality of care, provided that adequate adjustment for case‐mix is applied for NIHSS score.
Published: 2023
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3. Performance feedback on the quality of care in hospitals performing thrombectomy for ischemic stroke (PERFEQTOS): protocol of a stepped wedge cluster randomized trial

Author: Marzyeh Amini, Sanne J. den Hartog, Nikki van Leeuwen, Frank Eijkenaar, Laurien S. Kuhrij, Lotte J. Stolze, Paul J. Nederkoorn, Hester F. Lingsma, Adriaan C. G. M. van Es, Ido R. van den Wijngaard, Aad van der Lugt, Diederik W. J. Dippel, Bob Roozenbeek, and on behalf of the PERFEQTOS Investigators
Subjects: Performance feedback, Endovascular thrombectomy, Stepped wedge cluster randomized trial, Ischemic stroke, Quality of care, Medicine (General), R5-920
Abstract: Abstract Background Although the provision of performance feedback to healthcare professionals based on data from quality registries is common practice in many fields of medicine, observational studies of its effect on the quality of care have shown mixed results. The objective of this study is to evaluate the effect of performance feedback on the quality of care for acute ischemic stroke. Methods PERFEQTOS is a stepped wedge cluster randomized trial in 13 hospitals in the Netherlands providing endovascular thrombectomy for ischemic stroke. The primary outcome is the hospital’s door-to-groin time. The study starts with a 6-month period in which none of the hospitals receives the performance feedback intervention. Subsequently, every 6 months, three or four hospitals are randomized to cross over from the control to the intervention conditions, until all hospitals receive the feedback intervention. The feedback intervention consists of a dashboard with quarterly reports on patient characteristics, structure, process, and outcome indicators related to patients with ischemic stroke treated with endovascular thrombectomy. Hospitals can compare their present performance with their own performance in the past and with other hospitals. The performance feedback is provided to local quality improvement teams in each hospital, who define their own targets on specific indicators and develop performance improvement plans. The impact of the performance feedback and improvement plans will be evaluated by comparing the primary outcome before and after the intervention. Discussion This study will provide evidence on the effectiveness of performance feedback to healthcare providers. The results will be actively disseminated through peer-reviewed journals, conference presentations, and various stakeholder engagement activities. Trial registration Netherlands Trial Register NL9090 . Registered on December 3, 2020
Published: 2021
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4. Value of Thrombus Imaging Characteristics as a Guide for First‐Line Endovascular Thrombectomy Device in Patients With Acute Ischemic Stroke

Author: Nikki Boodt, Agnetha A. E. Bruggeman, Manon Kappelhof, Sanne J. den Hartog, Nerea Arrarte Terreros, Jasper M. Martens, Reinoud P. H. Bokkers, Pieter‐Jan van Doormaal, Charles B. L. M. Majoie, Wim H. van Zwam, Henk A. Marquering, Diederik W. J. Dippel, Aad van der Lugt, and Hester F. Lingsma
Subjects: acute stroke, aspiration, stent retriever, thrombectomy, thrombus, Neurology. Diseases of the nervous system, RC346-429, Diseases of the circulatory (Cardiovascular) system, RC666-701
Abstract: Background It has been suggested that selection of a first‐line endovascular thrombectomy device, that is, contact aspiration (CA) or stent retriever (SR) thrombectomy, could be based on thrombus type. Thrombus composition and mechanical behavior can partially be predicted with thrombus computed tomography (CT) characteristics. We aimed to assess the influence of thrombus CT characteristics on the association between first‐line device and outcomes of endovascular thrombectomy. Methods For patients enrolled in the MR CLEAN (Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in The Netherlands) Registry between March 2014 and November 2017, we assessed thrombus density, thrombus length, and presence of hyperdense artery sign on thin‐slice (≤2.5 mm) admission CT. We used regression models to estimate the relationship between first‐line endovascular thrombectomy device (CA versus stent retriever) and first‐pass reperfusion (FPR, expanded Thrombolysis in Cerebral Infarction score 2C‐3 after first attempt), final reperfusion, procedure duration, 24‐hour National Institutes of Health Stroke Scale, and 90‐day modified Rankin scale score and tested for interaction of thrombus characteristics with first‐line device by adding interaction terms. Results Of 703 included patients, 520 (74%) received first‐line stent retriever and 183 (26%) first‐line CA. Overall, the first‐line device was not associated with FPR (adjusted odds ratio [aOR], 1.32 [95% CI, 0.88–1.98]). In patients with thrombus density below the median (
Published: 2023
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5. Thrombus Imaging Characteristics and Outcomes in Posterior Circulation Stroke Patients Treated With EVT

Author: Agnetha A.E. Bruggeman, Josje Brouwer, Nerea Arrarte Terreros, Nikki Boodt, Sanne J. den Hartog, F.A.V. (Anne) Pirson, Ludo F.M. Beenen, Pieter‐Jan van Doormaal, Robert J. van Oostenbrugge, Julie Staals, Wim H. van Zwam, Wouter J. Schonewille, Lucianne C.M. Langezaal, Jan‐Albert Vos, Aad van der Lugt, Diederik W.J. Dippel, Jonathan M. Coutinho, Yvo B.W.E.M. Roos, Henk A. Marquering, Bart J. Emmer, and Charles B.L.M. Majoie
Subjects: posterior circulation stroke, stroke, thrombectomy, thrombus imaging characteristics, Neurology. Diseases of the nervous system, RC346-429, Diseases of the circulatory (Cardiovascular) system, RC666-701
Abstract: Background Contrary to anterior circulation stroke, studies on the association between thrombus imaging characteristics and outcomes are scarce in patients with posterior circulation stroke (PCS). We aimed to investigate the association of thrombus imaging characteristics with reperfusion and functional outcome in patients with PCS who underwent endovascular treatment. Methods In patients with PCS included in the MR CLEAN (Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in The Netherlands) Registry, thrombus imaging characteristics (thrombus density and perviousness in Hounsfield Units [HU] and thrombus length in mm) were assessed on thin‐slice imaging (
Published: 2022
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6. Association of Ischemic Core Imaging Biomarkers With Post-Thrombectomy Clinical Outcomes in the MR CLEAN Registry

Author: Miou S. Koopman, Jan W. Hoving, Manon Kappelhof, Olvert A. Berkhemer, Ludo F. M. Beenen, Wim H. van Zwam, Hugo W. A. M. de Jong, Jan Willem Dankbaar, Diederik W. J. Dippel, Jonathan M. Coutinho, Henk A. Marquering, Bart J. Emmer, Charles B. L. M. Majoie, for the MR CLEAN Registry Investigators, Aad van der Lugt, Yvo B. W. E. M. Roos, Robert J. van Oostenbrugge, Jelis Boiten, Jan Albert Vos, Ivo G. H. Jansen, Maxim J. H. L. Mulder, Robert-Jan B. Goldhoorn, Kars C. J. Compagne, Josje Brouwer, Sanne J. den Hartog, Wouter H. Hinsenveld, Bob Roozenbeek, Adriaan C. G. M. van Es, Wouter J. Schonewille, Marieke J. H. Wermer, Marianne A. A. van Walderveen, Julie Staals, Jeannette Hofmeijer, Jasper M. Martens, Geert J. Lycklama à Nijeholt, Sebastiaan F. de Bruijn, Lukas C. van Dijk, H. Bart van der Worp, Rob H. Lo, Ewoud J. van Dijk, Hieronymus D. Boogaarts, J. de Vries, Paul L. M. de Kort, Julia van Tuijl, Jo P. Peluso, Puck Fransen, Jan S. P. van den Berg, Boudewijn A. A. M. van Hasselt, Leo A. M. Aerden, René J. Dallinga, Maarten Uyttenboogaart, Omid Eschgi, Reinoud P.H. Bokkers, Tobien H. C. M. L. Schreuder, Roel J. J. Heijboer, Koos Keizer, Lonneke S. F. Yo, Heleen M. den Hertog, Emiel J. C. Sturm, Paul J. A. M. Brouwers, Marieke E. S. Sprengers, Sjoerd F. M. Jenniskens, René van den Berg, Albert J. Yoo, Alida A. Postma, Stefan D. Roosendaal, Bas F. W. van der Kallen, Ido R. van den Wijngaard, Joost Bot, Pieter-Jan van Doormaal, Anton Meijer, Elyas Ghariq, Reinoud P. H. Bokkers, Marc P. van Proosdij, G. Menno Krietemeijer, Rob Lo, Dick Gerrits, Wouter Dinkelaar, Auke P. A. Appelman, Bas Hammer, Sjoert Pegge, Anouk van der Hoorn, Saman Vinke, H. Zwenneke Flach, Hester F. Lingsma, Naziha el Ghannouti, Martin Sterrenberg, Wilma Pellikaan, Rita Sprengers, Marjan Elfrink, Michelle Simons, Marjolein Vossers, Joke de Meris, Tamara Vermeulen, Annet Geerlings, Gina van Vemde, Tiny Simons, Gert Messchendorp, Nynke Nicolaij, Hester Bongenaar, Karin Bodde, Sandra Kleijn, Jasmijn Lodico, Hanneke Droste, Maureen Wollaert, Sabrina Verheesen, D. Jeurrissen, Erna Bos, Yvonne Drabbe, Michelle Sandiman, Nicoline Aaldering, Berber Zweedijk, Jocova Vervoort, Eva Ponjee, Sharon Romviel, Karin Kanselaar, Denn Barning, Esmee Venema, Vicky Chalos, Ralph R. Geuskens, Tim van Straaten, Saliha Ergezen, Roger R. M. Harmsma Daan Muijres, Anouk de Jong, Anna M. M. Boers, J. Huguet, P. F. C. Groot, Marieke A. Mens, Katinka R. van Kranendonk, Kilian M. Treurniet, Manon L. Tolhuisen, Heitor Alves, Annick J. Weterings, Eleonora L. F. Kirkels, Lieve M. Schupp, Eva J. H. F. Voogd, Sabine Collette, Adrien E. D. Groot, Natalie E. LeCouffe, Praneeta R. Konduri, Haryadi Prasetya, Nerea Arrarte- Terreros, and Lucas A. Ramos
Subjects: CT perfusion (CTP), ischemic core, thrombectomy, stroke, alberta stroke program early CT score (ASPECTS), collaterals, Neurology. Diseases of the nervous system, RC346-429
Abstract: Background: A considerable proportion of acute ischemic stroke patients treated with endovascular thrombectomy (EVT) are dead or severely disabled at 3 months despite successful reperfusion. Ischemic core imaging biomarkers may help to identify patients who are more likely to have a poor outcome after endovascular thrombectomy (EVT) despite successful reperfusion. We studied the association of CT perfusion-(CTP), CT angiography-(CTA), and non-contrast CT-(NCCT) based imaging markers with poor outcome in patients who underwent EVT in daily clinical practice.Methods: We included EVT-treated patients (July 2016–November 2017) with an anterior circulation occlusion from the Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands (MR CLEAN) Registry with available baseline CTP, CTA, and NCCT. We used multivariable binary and ordinal logistic regression to analyze the association of CTP ischemic core volume, CTA-Collateral Score (CTA-CS), and Alberta Stroke Program Early CT Score (ASPECTS) with poor outcome (modified Rankin Scale score (mRS) 5-6) and likelihood of having a lower score on the mRS at 90 days.Results: In 201 patients, median core volume was 13 (IQR 5-41) mL. Median ASPECTS was 9 (IQR 8-10). Most patients had grade 2 (83/201; 42%) or grade 3 (28/201; 14%) collaterals. CTP ischemic core volume was associated with poor outcome [aOR per 10 mL 1.02 (95%CI 1.01–1.04)] and lower likelihood of having a lower score on the mRS at 90 days [aOR per 10 mL 0.85 (95% CI 0.78–0.93)]. In multivariable analysis, neither CTA-CS nor ASPECTS were significantly associated with poor outcome or the likelihood of having a lower mRS.Conclusion: In our population of patients treated with EVT in daily clinical practice, CTP ischemic core volume is associated with poor outcome and lower likelihood of shift toward better outcome in contrast to either CTA-CS or ASPECTS.
Published: 2022
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7. Hospital Variation in Time to Endovascular Treatment for Ischemic Stroke: What Is the Optimal Target for Improvement?

Author: Sanne J. den Hartog, Hester F. Lingsma, Pieter‐Jan van Doormaal, Jeannette Hofmeijer, Lonneke S. F. Yo, Charles B. L. M. Majoie, Diederik W. J. Dippel, Aad van der Lugt, and Bob Roozenbeek
Subjects: brain ischemia, quality improvement, reperfusion, stroke, thrombectomy, Diseases of the circulatory (Cardiovascular) system, RC666-701
Abstract: Background Time to reperfusion in patients with ischemic stroke is strongly associated with functional outcome and may differ between hospitals and between patients within hospitals. Improvement in time to reperfusion can be guided by between‐hospital and within‐hospital comparisons and requires insight in specific targets for improvement. We aimed to quantify the variation in door‐to‐reperfusion time between and within Dutch intervention hospitals and to assess the contribution of different time intervals to this variation. Methods and Results We used data from the MR CLEAN (Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands) Registry. The door‐to‐reperfusion time was subdivided into time intervals, separately for direct patients (door‐to‐computed tomography, computed tomography‐to‐computed tomography angiography [CTA], CTA‐to‐groin, and groin‐to‐reperfusion times) and for transferred patients (door‐to‐groin and groin‐to‐reperfusion times). We used linear mixed models to distinguish the variation in door‐to‐reperfusion time between hospitals and between patients. The proportional change in variance was used to estimate the amount of variance explained by each time interval. We included 2855 patients of 17 hospitals providing endovascular treatment. Of these patients, 44% arrived directly at an endovascular treatment hospital. The between‐hospital variation in door‐to‐reperfusion time was 9%, and the within‐hospital variation was 91%. The contribution of case‐mix variables on the variation in door‐to‐reperfusion time was marginal (2%–7%). Of the between‐hospital variation, CTA‐to‐groin time explained 83%, whereas groin‐to‐reperfusion time explained 15%. Within‐hospital variation was mostly explained by CTA‐to‐groin time (33%) and groin‐to‐reperfusion time (42%). Similar results were found for transferred patients. Conclusions Door‐to‐reperfusion time varies between, but even more within, hospitals providing endovascular treatment for ischemic stroke. Quality of stroke care improvements should not only be guided by between‐hospital comparisons, but also aim to reduce variation between patients within a hospital, and should specifically focus on CTA‐to‐groin time and groin‐to‐reperfusion time.
Published: 2022
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8. Effect of First‐Pass Reperfusion on Outcome After Endovascular Treatment for Ischemic Stroke

Author: Sanne J. den Hartog, Osama Zaidat, Bob Roozenbeek, Adriaan C. G. M. van Es, Agnetha A. E. Bruggeman, Bart J. Emmer, Charles B. L. M. Majoie, Wim H. van Zwam, Ido R. van den Wijngaard, Pieter Jan van Doormaal, Hester F. Lingsma, James F. Burke, and Diederik W. J. Dippel
Subjects: brain ischemia, endovascular procedures, reperfusion, stroke, thrombectomy, Diseases of the circulatory (Cardiovascular) system, RC666-701
Abstract: Background First‐pass reperfusion (FPR) is associated with favorable outcome after endovascular treatment. It is unknown whether this effect is independent of patient characteristics and whether FPR has better outcomes compared with excellent reperfusion (Expanded Thrombolysis in Cerebral Infarction [eTICI] 2C‐3) after multiple‐passes reperfusion. We aimed to evaluate the association between FPR and outcome with adjustment for patient, imaging, and treatment characteristics to single out the contribution of FPR. Methods and Results FPR was defined as eTICI 2C‐3 after 1 pass. Multivariable regression models were used to investigate characteristics associated with FPR and to investigate the effect of FPR on outcomes. We included 2686 patients of the MR CLEAN (Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands) Registry. Factors associated with FPR were as follows: history of hyperlipidemia (adjusted odds ratio [OR], 1.05; 95% CI, 1.01–1.10), middle cerebral artery versus intracranial carotid artery occlusion (adjusted OR, 1.11; 95% CI, 1.06–1.16), and aspiration versus stent thrombectomy (adjusted OR, 1.07; 95% CI, 1.03–1.11). Interventionist experience increased the likelihood of FPR (adjusted OR, 1.03 per 50 patients previously treated; 95% CI, 1.01–1.06). Adjusted for patient, imaging, and treatment characteristics, FPR remained associated with a better 24‐hour National Institutes of Health Stroke Scale (NIHSS) score (−37%; 95% CI, −43% to −31%) and a better modified Rankin Scale (mRS) score at 3 months (adjusted common OR, 2.16; 95% CI, 1.83–2.54) compared with no FPR (multiple‐passes reperfusion+no excellent reperfusion), and compared with multiple‐passes reperfusion alone (24‐hour NIHSS score, (−23%; 95% CI, −31% to −14%), and mRS score (adjusted common OR, 1.45; 95% CI, 1.19–1.78)). Conclusions FPR compared with multiple‐passes reperfusion is associated with favorable outcome, independently of patient, imaging, and treatment characteristics. Factors associated with FPR were the experience of the interventionist, history of hyperlipidemia, location of occluded artery, and use of an aspiration device compared with stent thrombectomy.
Published: 2021
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9. Deep-Learning-Based Thrombus Localization and Segmentation in Patients with Posterior Circulation Stroke

Author: Riaan Zoetmulder, Agnetha A. E. Bruggeman, Ivana Išgum, Efstratios Gavves, Charles B. L. M. Majoie, Ludo F. M. Beenen, Diederik W. J. Dippel, Nikkie Boodt, Sanne J. den Hartog, Pieter J. van Doormaal, Sandra A. P. Cornelissen, Yvo B. W. E. M. Roos, Josje Brouwer, Wouter J. Schonewille, Anne F. V. Pirson, Wim H. van Zwam, Christiaan van der Leij, Rutger J. B. Brans, Adriaan C. G. M. van Es, and Henk A. Marquering
Subjects: posterior stroke, deep learning, CTA, NCCT, thrombus, localization, Medicine (General), R5-920
Abstract: Thrombus volume in posterior circulation stroke (PCS) has been associated with outcome, through recanalization. Manual thrombus segmentation is impractical for large scale analysis of image characteristics. Hence, in this study we develop the first automatic method for thrombus localization and segmentation on CT in patients with PCS. In this multi-center retrospective study, 187 patients with PCS from the MR CLEAN Registry were included. We developed a convolutional neural network (CNN) that segments thrombi and restricts the volume-of-interest (VOI) to the brainstem (Polar-UNet). Furthermore, we reduced false positive localization by removing small-volume objects, referred to as volume-based removal (VBR). Polar-UNet is benchmarked against a CNN that does not restrict the VOI (BL-UNet). Performance metrics included the intra-class correlation coefficient (ICC) between automated and manually segmented thrombus volumes, the thrombus localization precision and recall, and the Dice coefficient. The majority of the thrombi were localized. Without VBR, Polar-UNet achieved a thrombus localization recall of 0.82, versus 0.78 achieved by BL-UNet. This high recall was accompanied by a low precision of 0.14 and 0.09. VBR improved precision to 0.65 and 0.56 for Polar-UNet and BL-UNet, respectively, with a small reduction in recall to 0.75 and 0.69. The Dice coefficient achieved by Polar-UNet was 0.44, versus 0.38 achieved by BL-UNet with VBR. Both methods achieved ICCs of 0.41 (95% CI: 0.27–0.54). Restricting the VOI to the brainstem improved the thrombus localization precision, recall, and segmentation overlap compared to the benchmark. VBR improved thrombus localization precision but lowered recall.
Published: 2022
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10. Influence of the interventionist's experience on outcomes of endovascular thrombectomy in acute ischemic stroke: results from the MR CLEAN Registry

Author: Susanne G H Olthuis, Sanne J den Hartog, Sander M J van Kuijk, Julie Staals, Faysal Benali, Christiaan van der Leij, Debbie Beumer, Geert J Lycklama à Nijeholt, Maarten Uyttenboogaart, Jasper M Martens, Pieter-Jan van Doormaal, Jan Albert Vos, Bart J Emmer, Diederik W J Dippel, Wim H van Zwam, Robert J van Oostenbrugge, Inger R de Ridder, Klinische Neurowetenschappen, MUMC+: MA Niet Med Staf Neurologie (9), RS: Carim - B05 Cerebral small vessel disease, RS: Carim - B06 Imaging, RS: CAPHRI - R2 - Creating Value-Based Health Care, Epidemiologie, MUMC+: KIO Kemta (9), MUMC+: MA Med Staf Spec Neurologie (9), Beeldvorming, MUMC+: DA BV AIOS Radiologie (9), MUMC+: DA BV Medisch Specialisten Radiologie (9), MUMC+: MA Neurologie (3), MUMC+: Hersen en Zenuw Centrum (3), Neurology, Radiology & Nuclear Medicine, Public Health, Radiology and Nuclear Medicine, and ANS - Neurovascular Disorders
Subjects: IMPACT, MECHANICAL THROMBECTOMY, PERCUTANEOUS CORONARY INTERVENTION, UNITED-STATES, General Medicine, stroke, THERAPY, thrombectomy, VOLUME, OPERATOR EXPERIENCE, Surgery, Neurology (clinical), LEARNING-CURVE, intervention, INTRAARTERIAL TREATMENT
Abstract: BackgroundThe relationship between the interventionist’s experience and outcomes of endovascular thrombectomy (EVT) for acute ischemic stroke of the anterior circulation, is unclear.ObjectiveTo assess the effect of the interventionist’s level of experience on clinical, imaging, and workflow outcomes. Secondly, to determine which of the three experience definitions is most strongly associated with these outcome measures.MethodsWe analysed data from 2700 patients, included in the MR CLEAN Registry. We defined interventionist’s experience as the number of procedures performed in the year preceding the intervention (EXPfreq), total number of procedures performed (EXPno), and years of experience (EXPyears). Our outcomes were the baseline-adjusted National Institutes of Health Stroke Scale (NIHSS) score at 24–48 hours post-EVT, recanalization (extended Thrombolysis in Cerebral Infarction (eTICI) score ≥2B), and procedural duration. We used multilevel regression models with interventionists as random intercept. For EXPfreq and EXPno results were expressed per 10 procedures.ResultsIncreased EXPfreq was associated with lower 24–48 hour NIHSS scores (adjusted (a)β:−0.46, 95% CI −0.70 to −0.21). EXPno and EXPyears were not associated with short-term neurological outcomes. Increased EXPfreq and EXPno were both associated with recanalization (aOR=1.20, 95% CI 1.11 to 1.31 and aOR=1.08, 95% CI 1.04 to 1.12, respectively), and increased EXPfreq, EXPno, and EXPyears were all associated with shorter procedure times (aβ:−3.08, 95% CI−4.32 to −1.84; aβ:−1.34, 95% CI−1.84 to −0.85; and aβ:−0.79, 95% CI−1.45 to −0.13, respectively).ConclusionsHigher levels of interventionist’s experience are associated with better outcomes after EVT, in particular when experience is defined as the number of patients treated in the preceding year. Every 20 procedures more per year is associated with approximately one NIHSS score point decrease, an increased probability for recanalization (aOR=1.44), and a 6-minute shorter procedure time.
Published: 2023
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11. Endovascular Treatment for Posterior Circulation Stroke in Routine Clinical Practice: Results of the Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands Registry

Author: F. Anne V. Pirson, Nikki Boodt, Josje Brouwer, Agnetha A.E. Bruggeman, Sanne J. den Hartog, Robert-Jan B. Goldhoorn, Lucianne C.M. Langezaal, Julie Staals, Wim H. van Zwam, Christiaan van der Leij, Rutger J.B. Brans, Charles B.L.M. Majoie, Jonathan M. Coutinho, Bart J. Emmer, Diederik W.J. Dippel, Aad van der Lugt, Jan-Albert Vos, Robert J. van Oostenbrugge, Wouter J. Schonewille, Yvo B.W.E.M. Roos, Jelis Boiten, Jan Albert Vos, Ivo G.H. Jansen, Maxim J.H.L. Mulder, Kars C.J. Compagne, Manon Kappelhof, Wouter H. Hinsenveld, Bob Roozenbeek, Marieke J.H. Wermer, Marianne A.A. van Walderveen, Adriaan C.G.M. van Es, Jeannette Hofmeijer, Jasper M. Martens, Geert J. Lycklama à Nijeholt, Sebastiaan F. de Bruijn, Lukas C. van Dijk, H. Bart van der Worp, Rob H. Lo, Ewoud J. van Dijk, Hieronymus D. Boogaarts, J. de Vries, Paul L.M. de Kort, Julia van Tuijl, Jo P. Peluso, Puck Fransen, Jan S.P. van den Berg, Boudewijn A.A.M. van Hasselt, Leo A.M. Aerden, René J. Dallinga, Maarten Uyttenboogaart, Omid Eschgi, Reinoud P.H. Bokkers, Tobien H.C.M.L. Schreuder, Roel J.J. Heijboer, Koos Keizer, Lonneke S.F. Yo, Heleen M. den Hertog, Emiel J.C. Sturm, Paul J.A.M. Brouwers, Marieke E.S. Sprengers, Sjoerd F.M. Jenniskens, René van den Berg, Albert J. Yoo, Ludo F.M. Beenen, Alida A. Postma, Stefan D. Roosendaal, Bas F.W. van der Kallen, Ido R. van den Wijngaard, Joost Bot, Pieter-Jan van Doormaal, Anton Meijer, Elyas Ghariq, Marc P. van Proosdij, G. Menno Krietemeijer, Rob Lo, Dick Gerrits, Wouter Dinkelaar, Auke P.A. Appelman, Bas Hammer, Sjoert Pegge, Anouk van der Hoorn, Saman Vinke, Sandra Cornelissen, H. Zwenneke Flach, Hester F. Lingsma, Naziha el Ghannouti, Martin Sterrenberg, Wilma Pellikaan, Rita Sprengers, Marjan Elfrink, Michelle Simons, Marjolein Vossers, Joke de Meris, Tamara Vermeulen, Annet Geerlings, Gina van Vemde, Tiny Simons, Gert Messchendorp, Nynke Nicolaij, Hester Bongenaar, Karin Bodde, Sandra Kleijn, Jasmijn Lodico, Hanneke Droste, Maureen Wollaert, Sabrina Verheesen, D. Jeurrissen, Erna Bos, Yvonne Drabbe, Michelle Sandiman, Nicoline Aaldering, Berber Zweedijk, Jocova Vervoort, Eva Ponjee, Sharon Romviel, Karin Kanselaar, Denn Barning, Esmee Venema, Vicky Chalos, Ralph R. Geuskens, Tim van Straaten, Saliha Ergezen, Roger R.M. Harmsma, Daan Muijres, Anouk de Jong, Olvert A. Berkhemer, Anna M.M. Boers, J. Huguet, P.F.C. Groot, Marieke A. Mens, Katinka R. van Kranendonk, Kilian M. Treurniet, Manon L. Tolhuisen, Heitor Alves, Annick J. Weterings, Eleonora L.F. Kirkels, Eva J.H.F. Voogd, Lieve M. Schupp, Sabine L. Collette, Adrien E.D. Groot, Natalie E. LeCouffe, Praneeta R. Konduri, Haryadi Prasetya, Nerea Arrarte-Terreros, Lucas A. Ramos, Neurology, Graduate School, Radiology and Nuclear Medicine, ACS - Microcirculation, ANS - Brain Imaging, ACS - Atherosclerosis & ischemic syndromes, ANS - Neurovascular Disorders, Klinische Neurowetenschappen, MUMC+: MA Niet Med Staf Neurologie (9), RS: Carim - B05 Cerebral small vessel disease, MUMC+: MA AIOS Neurologie (9), MUMC+: MA Med Staf Spec Neurologie (9), Beeldvorming, MUMC+: DA BV Medisch Specialisten Radiologie (9), RS: Carim - B06 Imaging, MUMC+: MA Neurologie (3), Radiology & Nuclear Medicine, Public Health, Basic and Translational Research and Imaging Methodology Development in Groningen (BRIDGE), Damage and Repair in Cancer Development and Cancer Treatment (DARE), and Radiology and nuclear medicine
Subjects: Male, medicine.medical_specialty, Mechanical Thrombolysis, posterior stroke, Treatment outcome, law.invention, Postoperative Complications, Randomized controlled trial, law, large vessel occlusion, medicine, Humans, Routine clinical practice, Prospective Studies, Endovascular treatment, PREDICTORS, Stroke, Acute ischemic stroke, Aged, Ischemic Stroke, Netherlands, Advanced and Specialized Nursing, OUTCOMES, BASILAR ARTERY-OCCLUSION, business.industry, Endovascular Procedures, Other Research Radboud Institute for Health Sciences [Radboudumc 0], registries, Middle Aged, THROMBECTOMY, medicine.disease, reperfusion, Clinical Practice, Tissue Plasminogen Activator, Emergency medicine, treatment outcome, Female, Neurology (clinical), Cardiology and Cardiovascular Medicine, business, Intracranial Hemorrhages, Large vessel occlusion
Abstract: Background and Purpose: The benefit of endovascular treatment (EVT) for posterior circulation stroke (PCS) remains uncertain, and little is known on treatment outcomes in clinical practice. This study evaluates outcomes of a large PCS cohort treated with EVT in clinical practice. Simultaneous to this observational study, several intervention centers participated in the BASICS trial (Basilar Artery International Cooperation Study), which tested the efficacy of EVT for basilar artery occlusion in a randomized setting. We additionally compared characteristics and outcomes of patients treated outside BASICS in trial centers to those from nontrial centers. Methods: We included patients with PCS from the Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands Registry: a prospective, multicenter, observational study of patients who underwent EVT in the Netherlands between 2014 and 2018. Primary outcome was a score of 0 to 3 on the modified Rankin Scale at 90 days. Secondary outcomes included reperfusion status and symptomatic intracranial hemorrhage. For outcome comparison between patients treated in trial versus nontrial centers, we used ordinal logistic regression analysis. Results: We included 264 patients of whom 135 (51%) had received intravenous thrombolysis. The basilar artery was most often involved (77%). Favorable outcome (modified Rankin Scale score 0–3) was observed in 115/252 (46%) patients, and 109/252 (43%) patients died. Successful reperfusion was achieved in 178/238 (75%), and symptomatic intracranial hemorrhage occurred in 9/264 (3%). The 154 nontrial patients receiving EVT in BASICS trial centers had similar characteristics and outcomes as the 110 patients treated in nontrial centers (modified Rankin Scale adjusted cOR: 0.77 [95% CI, 0.5–1.2]). Conclusions: Our study shows that high rates of favorable clinical outcome and successful reperfusion can be achieved with EVT for PCS, despite high mortality. Characteristics and outcomes of patients treated in trial versus nontrial centers were similar indicating that our cohort is representative of clinical practice in the Netherlands. Randomized studies using modern treatment approaches are needed for further insight in the benefit of EVT for PCS.
Published: 2022
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12. Prognostic Value of Thrombus Volume and Interaction With First-Line Endovascular Treatment Device Choice

Author: Henk van Voorst, Agnetha A.E. Bruggeman, Jurr Andriessen, Jan W. Hoving, Praneeta R. Konduri, Wenjin Yang, Manon Kappelhof, Nerea Arrarte Terreros, Yvo B.W.E.M. Roos, Wim H. van Zwam, Aad van der Lugt, Anouk van der Hoorn, Jelis Boiten, Stefan Roosendaal, Sjoerd Jenniskens, Matthan W.A. Caan, Henk A. Marquering, Bart J. Emmer, Charles B.L.M. Majoie, Diederik W.J. Dippel, Robert J. van Oostenbrugge, Jan Albert Vos, Ivo G.H. Jansen, Maxim J.H.L. Mulder, Robert- Jan B. Goldhoorn, Kars C.J. Compagne, Josje Brouwer, Sanne J. den Hartog, Wouter H. Hinsenveld, Bob Roozenbeek, Adriaan C.G.M. van Es, Jonathan M. Coutinho, Wouter J. Schonewille, Marieke J.H. Wermer, Marianne A.A. van Walderveen, Julie Staals, Jeannette Hofmeijer, Jasper M. Martens, Geert J. Lycklama à Nijeholt, Sebastiaan F. de Bruijn, Lukas C. van Dijk, H. Bart van der Worp, Rob H. Lo, Ewoud J. van Dijk, Hieronymus D. Boogaarts, J. de Vries, Paul L.M. de Kort, Julia van Tuijl, Jo P. Peluso, Puck Fransen, Jan S.P. van den Berg, Boudewijn A.A.M. van Hasselt, Leo A.M. Aerden, René J. Dallinga, Maarten Uyttenboogaart, Omid Eschgi, Reinoud P.H. Bokkers, Tobien H.C.M.L. Schreuder, Roel J.J. Heijboer, Koos Keizer, Lonneke S.F. Yo, Heleen M. den Hertog, Emiel J.C. Sturm, Paul J.A.M. Brouwers, Marieke E.S. Sprengers, René van den Berg, Albert J. Yoo, Ludo F.M. Beenen, Alida A. Postma, Bas F.W. van der Kallen, Ido R. van den Wijngaard, Joost Bot, Pieter-Jan van Doormaal, Anton Meijer, Elyas Ghariq, Marc P. van Proosdij, G. Menno Krietemeijer, Rob Lo, Dick Gerrits, Wouter Dinkelaar, Auke P.A. Appelman, Bas Hammer, Sjoert Pegge, Saman Vinke, H. Zwenneke Flach, Hester F. Lingsma, Naziha el Ghannouti, Martin Sterrenberg, Wilma Pellikaan, Rita Sprengers, Marjan Elfrink, Michelle Simons, Marjolein Vossers, Joke de Meris, Tamara Vermeulen, Annet Geerlings, Gina van Vemde, Tiny Simons, Gert Messchendorp, Nynke Nicolaij, Hester Bongenaar, Karin Bodde, Sandra Kleijn, Jasmijn Lodico, Hanneke Droste, Maureen Wollaert, Sabrina Verheesen, D. Jeurrissen, Erna Bos, Yvonne Drabbe, Michelle Sandiman, Nicoline Aaldering, Berber Zweedijk, Jocova Vervoort, Eva Ponjee, Sharon Romviel, Karin Kanselaar, Denn Barning, Esmee Venema, Vicky Chalos, Ralph R. Geuskens, Tim van Straaten, Saliha Ergezen, Roger R.M. Harmsma, Daan Muijres, Anouk de Jong, Olvert A. Berkhemer, Anna M.M. Boers, J. Huguet, P.F.C. Groot, Marieke A. Mens, Katinka R. van Kranendonk, Kilian M. Treurniet, Manon L. Tolhuisen, Heitor Alves, Annick J. Weterings, Eleonora L.F. Kirkels, Eva J.H.F. Voogd, Lieve M. Schupp, Sabine Collette, Adrien E.D. Groot, Natalie E. LeCouffe, Haryadi Prasetya, Lucas A. Ramos, Radiology and Nuclear Medicine, Biomedical Engineering and Physics, ANS - Brain Imaging, APH - Methodology, APH - Aging & Later Life, ACS - Atherosclerosis & ischemic syndromes, ANS - Neurovascular Disorders, ACS - Microcirculation, Pediatrics, Radiology and nuclear medicine, Damage and Repair in Cancer Development and Cancer Treatment (DARE), and Basic and Translational Research and Imaging Methodology Development in Groningen (BRIDGE)
Subjects: IMPACT, RECANALIZATION, GUIDELINES, functional status, All institutes and research themes of the Radboud University Medical Center, Brain Ischemia/diagnostic imaging, LENGTH, ischemic stroke, Humans, Ischemic Stroke/complications, thrombosis, Retrospective Studies, Advanced and Specialized Nursing, Other Research Radboud Institute for Health Sciences [Radboudumc 0], THROMBECTOMY, Endovascular Procedures/methods, Treatment Outcome, Thrombosis/diagnostic imaging, Thrombectomy/methods, stents, HEART, Neurology (clinical), prognosis, Cardiology and Cardiovascular Medicine, STROKE, Stroke/diagnostic imaging
Abstract: Background: A larger thrombus in patients with acute ischemic stroke might result in more complex endovascular treatment procedures, resulting in poorer patient outcomes. Current evidence on thrombus volume and length related to procedural and functional outcomes remains contradicting. This study aimed to assess the prognostic value of thrombus volume and thrombus length and whether this relationship differs between first-line stent retrievers and aspiration devices for endovascular treatment. Methods: In this multicenter retrospective cohort study, 670 of 3279 patients from the MR CLEAN Registry (Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands) for endovascularly treated large vessel occlusions were included. Thrombus volume (0.1 mL) and length (0.1 mm) based on manual segmentations and measurements were related to reperfusion grade (expanded Treatment in Cerebral Infarction score) after endovascular treatment, the number of retrieval attempts, symptomatic intracranial hemorrhage, and a shift for functional outcome at 90 days measured with the reverted ordinal modified Rankin Scale (odds ratio >1 implies a favorable outcome). Univariable and multivariable linear and logistic regression were used to report common odds ratios (cORs)/adjusted cOR and regression coefficients (B/aB) with 95% CIs. Furthermore, a multiplicative interaction term was used to analyze the relationship between first-line device choice, stent retrievers versus aspiration device, thrombus volume, and outcomes. Results: Thrombus volume was associated with functional outcome (adjusted cOR, 0.83 [95% CI, 0.71–0.97]) and number of retrieval attempts (aB, 0.16 [95% CI, 0.16–0.28]) but not with the other outcome measures. Thrombus length was only associated with functional independence (adjusted cOR, 0.45 [95% CI, 0.24–0.85]). Patients with more voluminous thrombi had worse functional outcomes if endovascular treatment was based on first-line stent retrievers (interaction cOR, 0.67 [95% CI, 0.50–0.89]; P =0.005; adjusted cOR, 0.74 [95% CI, 0.55–1.0]; P =0.04). Conclusions: In this study, patients with a more voluminous thrombus required more endovascular thrombus retrieval attempts and had a worse functional outcome. Patients with a lengthier thrombus were less likely to achieve functional independence at 90 days. For more voluminous thrombi, first-line stent retrieval compared with first-line aspiration might be associated with worse functional outcome.
Published: 2023
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13. Prediction of Outcome and Endovascular Treatment Benefit Validation and Update of the MR PREDICTS Decision Tool

Author: Esmee Venema, Bob Roozenbeek, Maxim J.H.L. Mulder, Scott Brown, Charles B.L.M. Majoie, Ewout W. Steyerberg, Andrew M. Demchuk, Keith W. Muir, Antoni Dávalos, Peter J. Mitchell, Serge Bracard, Olvert A. Berkhemer, Geert J. Lycklama à Nijeholt, Robert J. van Oostenbrugge, Yvo B.W.E.M. Roos, Wim H. van Zwam, Aad van der Lugt, Michael D. Hill, Philip White, Bruce C.V. Campbell, Francis Guillemin, Jeffrey L. Saver, Tudor G. Jovin, Mayank Goyal, Diederik W.J. Dippel, Hester F. Lingsma, Jelis Boiten, Jan Albert Vos, Ivo G.H. Jansen, Robert- Jan B. Goldhoorn, Kars C.J. Compagne, Manon Kappelhof, Josje Brouwer, Sanne J. den Hartog, Wouter H. Hinsenveld, Adriaan C.G.M. van Es, Bart J. Emmer, Jonathan M. Coutinho, Wouter J. Schonewille, Marieke J.H. Wermer, Marianne A.A. van Walderveen, Julie Staals, Jeannette Hofmeijer, Jasper M. Martens, Sebastiaan F. de Bruijn, Lukas C. van Dijk, H. Bart van der Worp, Rob H. Lo, Ewoud J. van Dijk, Hieronymus D. Boogaarts, J. de Vries, Paul L.M. de Kort, Julia van Tuijl, Jo P. Peluso, Puck Fransen, Jan S.P. van den Berg, Boudewijn A.A.M. van Hasselt, Leo A.M. Aerden, René J. Dallinga, Maarten Uyttenboogaart, Omid Eschgi, Reinoud P.H. Bokkers, Tobien H.C.M.L. Schreuder, Roel J.J. Heijboer, Koos Keizer, Lonneke S.F. Yo, Heleen M. den Hertog, Tomas Bulut, Paul J.A.M. Brouwers, Marieke E.S. Sprengers, Sjoerd F.M. Jenniskens, René van den Berg, Albert J. Yoo, Ludo F.M. Beenen, Alida A. Postma, Stefan D. Roosendaal, Bas F.W. van der Kallen, Ido R. van den Wijngaard, Joost Bot, Pieter-Jan van Doormaal, Anton Meijer, Elyas Ghariq, Marc P. van Proosdij, G. Menno Krietemeijer, Rob Lo, Dick Gerrits, Wouter Dinkelaar, Auke P.A. Appelman, Bas Hammer, Sjoert Pegge, Anouk van der Hoorn, Saman Vinke, H. Zwenneke Flach, Naziha el Ghannouti, Martin Sterrenberg, Wilma Pellikaan, Rita Sprengers, Marjan Elfrink, Michelle Simons, Marjolein Vossers, Joke de Meris, Tamara Vermeulen, Annet Geerlings, Gina van Vemde, Tiny Simons, Gert Messchendorp, Nynke Nicolaij, Hester Bongenaar, Karin Bodde, Sandra Kleijn, Jasmijn Lodico, Hanneke Droste, Maureen Wollaert, Sabrina Verheesen, D. Jeurrissen, Erna Bos, Yvonne Drabbe, Michelle Sandiman, Nicoline Aaldering, Berber Zweedijk, Jocova Vervoort, Eva Ponjee, Sharon Romviel, Karin Kanselaar, Denn Barning, Vicky Chalos, Ralph R. Geuskens, Tim van Straaten, Saliha Ergezen, Roger R.M. Harmsma, Daan Muijres, Anouk de Jong, Anna M.M. Boers, J. Huguet, P.F.C. Groot, Marieke A. Mens, Katinka R. van Kranendonk, Kilian M. Treurniet, Manon L. Tolhuisen, Heitor Alves, Annick J. Weterings, Eleonora L.F. Kirkels, Eva J.H.F. Voogd, Lieve M. Schupp, Sabine L. Collette, Adrien E.D. Groot, Natalie E. LeCouffe, Praneeta R. Konduri, Haryadi Prasetya, Nerea Arrarte- Terreros, Lucas A. Ramos, MUMC+: MA Neurologie (3), Klinische Neurowetenschappen, MUMC+: Hersen en Zenuw Centrum (3), RS: Carim - B05 Cerebral small vessel disease, Beeldvorming, MUMC+: DA BV Medisch Specialisten Radiologie (9), RS: Carim - B06 Imaging, Neurology, Public Health, Radiology & Nuclear Medicine, Basic and Translational Research and Imaging Methodology Development in Groningen (BRIDGE), Damage and Repair in Cancer Development and Cancer Treatment (DARE), Radiology and Nuclear Medicine, ACS - Microcirculation, ANS - Neurovascular Disorders, ANS - Cellular & Molecular Mechanisms, and ACS - Atherosclerosis & ischemic syndromes
Subjects: Male, SELECTION, Original Contributions, Vascular damage Radboud Institute for Health Sciences [Radboudumc 16], Cardiorespiratory Medicine and Haematology, registry, GUIDELINES, THERAPY, ANGIOGRAPHY, Brain Ischemia, law.invention, 0302 clinical medicine, Randomized controlled trial, Interquartile range, Modified Rankin Scale, law, 80 and over, Registries, 030212 general & internal medicine, ACUTE ISCHEMIC-STROKE, uncertainty, Stroke, ComputingMilieux_MISCELLANEOUS, Aged, 80 and over, Endovascular Procedures, Middle Aged, Disorders of movement Donders Center for Medical Neuroscience [Radboudumc 3], Outcome (probability), reperfusion, Treatment Outcome, thrombectomy, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Cardiology and Cardiovascular Medicine, Rare cancers Radboud Institute for Health Sciences [Radboudumc 9], medicine.medical_specialty, Concordance, Clinical Trials and Supportive Activities, Clinical Sciences, Clinical and Population Sciences, 03 medical and health sciences, Clinical Research, medicine, ischemic stroke, Humans, Endovascular treatment, Aged, Advanced and Specialized Nursing, Neurology & Neurosurgery, business.industry, MECHANICAL THROMBECTOMY, Other Research Radboud Institute for Health Sciences [Radboudumc 0], Neurosciences, medicine.disease, Brain Disorders, HERMES collaborators and MR CLEAN Registry Investigators, Emergency medicine, Observational study, Neurology (clinical), business, 030217 neurology & neurosurgery
Abstract: Supplemental Digital Content is available in the text., Background and Purpose: Benefit of early endovascular treatment (EVT) for ischemic stroke varies considerably among patients. The MR PREDICTS decision tool, derived from MR CLEAN (Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands), predicts outcome and treatment benefit based on baseline characteristics. Our aim was to externally validate and update MR PREDICTS with data from international trials and daily clinical practice. Methods: We used individual patient data from 6 randomized controlled trials within the HERMES (Highly Effective Reperfusion Evaluated in Multiple Endovascular Stroke Trials) collaboration to validate the original model. Then, we updated the model and performed a second validation with data from the observational MR CLEAN Registry. Primary outcome was functional independence (defined as modified Rankin Scale score 0–2) 3 months after stroke. Treatment benefit was defined as the difference between the probability of functional independence with and without EVT. Discriminative performance was evaluated using a concordance (C) statistic. Results: We included 1242 patients from HERMES (633 assigned to EVT, 609 assigned to control) and 3156 patients from the MR CLEAN Registry (all of whom underwent EVT within 6.5 hours). The C-statistic for functional independence was 0.74 (95% CI, 0.72–0.77) in HERMES and, after model updating, 0.80 (0.78–0.82) in the Registry. Median predicted treatment benefit of routinely treated patients (Registry) was 10.3% (interquartile range, 5.8%–14.4%). Patients with low (
Published: 2021
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14. Determinants of Symptomatic Intracranial Hemorrhage After Endovascular Stroke Treatment: A Retrospective Cohort Study

Author: Wouter van der Steen, Nadinda A.M. van der Ende, Katinka R. van Kranendonk, Vicky Chalos, Robert J. van Oostenbrugge, Wim H. van Zwam, Yvo B.W.E.M. Roos, Pieter J. van Doormaal, Adriaan C.G.M. van Es, Hester F. Lingsma, Charles B.L.M. Majoie, Aad van der Lugt, Diederik W.J. Dippel, Bob Roozenbeek, Jelis Boiten, Jan Albert Vos, Ivo G.H. Jansen, Maxim J.H.L. Mulder, Robert- Jan B. Goldhoorn, Kars C.J. Compagne, Manon Kappelhof, Josje Brouwer, Sanne J. den Hartog, Bart J. Emmer, Jonathan M. Coutinho, Wouter J. Schonewille, Marieke J.H. Wermer, Marianne A.A. van Walderveen, Julie Staals, Jeannette Hofmeijer, Jasper M. Martens, Geert J. Lycklama à Nijeholt, Sebastiaan F. de Bruijn, Lukas C. van Dijk, H. Bart van der Worp, Rob H. Lo, Ewoud J. van Dijk, Hieronymus D. Boogaarts, J. de Vries, Paul L.M. de Kort, Julia van Tuijl, Jo P. Peluso, Puck Fransen, Jan S.P. van den Berg, Boudewijn A.A.M. van Hasselt, Leo A.M. Aerden, René J. Dallinga, Maarten Uyttenboogaart, Omid Eschgi, Reinoud P.H. Bokkers, Tobien H.C.M.L. Schreuder, Roel J.J. Heijboer, Koos Keizer, Lonneke S.F. Yo, Heleen M. den Hertog, Tomas Bulut, Paul J.A.M. Brouwers, Geert J. Lycklama, Marieke E.S. Sprengers, Sjoerd F.M. Jenniskens, René van den Berg, Albert J. Yoo, Ludo F.M. Beenen, Alida A. Postma, Stefan D. Roosendaal, Bas F.W. van der Kallen, Ido R. van den Wijngaard, Joost Bot, Anton Meijer, Elyas Ghariq, Marc P. van Proosdij, G. Menno Krietemeijer, Rob Lo, Wouter Dinkelaar, P.A. Auke, Bas Hammer, Sjoert Pegge, Anouk van der Hoorn, Saman Vinke, H. Zwenneke Flach, Naziha el Ghannouti, Martin Sterrenberg, Wilma Pellikaan, Rita Sprengers, Marjan Elfrink, Michelle Simons, Marjolein Vossers, Joke de Meris, Tamara Vermeulen, Annet Geerlings, Gina van Vemde, Tiny Simons, Gert Messchendorp, Nynke Nicolaij, Hester Bongenaar, Karin Bodde, Sandra Kleijn, Jasmijn Lodico, Hanneke Droste, Maureen Wollaert, Sabrina Verheesen, D. Jeurrissen, Erna Bos, Yvonne Drabbe, Michelle Sandiman, Nicoline Aaldering, Berber Zweedijk, Jocova Vervoort, Eva Ponjee, Sharon Romviel, Karin Kanselaar, Denn Barning, Esmee Venema, Ralph R. Geuskens, Tim van Straaten, Saliha Ergezen, Roger R.M. Harmsma, Daan Muijres, Anouk de Jong, Olvert A. Berkhemer, Anna M.M. Boers, J. Huguet, P.F.C. Groot, Marieke A. Mens, Kilian M. Treurniet, Manon L. Tolhuisen, Heitor Alves, Annick J. Weterings, Eleonora L.F. Kirkels, Eva J.H.F. Voogd, Lieve M. Schupp, Sabine L. Collette, Adrien E.D. Groot, Natalie E. LeCouffe, Praneeta R. Konduri, Haryadi Prasetya, Nerea Arrarte- Terreros, Lucas A. Ramos, Martin M. Brown, Thomas Liebig, Esther van der Heijden, Naziha Ghannouti, Nadine Fleitour, Imke Hooijenga, Corina Puppels, Annet Geerling, Annemieke Lindl-Velema, Ans de Ridder, Paut Greebe, Jose de Bont- Stikkelbroeck, MC Haaglanden, Kirsten Janssen, Silvan Licher, Nikki Boodt, Adriaan Ros, Ilse Slokkers, Raymie-Jayce Ganpat, Maxim Mulder, Nawid Saiedie, Alis Heshmatollah, Stefanie Schipperen, Stefan Vinken, Tiemen van Boxtel, Jeroen Koets, Merel Boers, Emilie Santos, Jordi Borst, Ivo Jansen, Marit Lucas, Ralph Renan Geuskens, Roeland Sales Barros, Neurology, Radiology & Nuclear Medicine, Public Health, MUMC+: MA Neurologie (3), Klinische Neurowetenschappen, MUMC+: Hersen en Zenuw Centrum (3), RS: MHeNs - R1 - Cognitive Neuropsychiatry and Clinical Neuroscience, RS: Carim - B05 Cerebral small vessel disease, Beeldvorming, MUMC+: DA BV Medisch Specialisten Radiologie (9), RS: Carim - B06 Imaging, Radiology and nuclear medicine, ACS - Atherosclerosis & ischemic syndromes, Basic and Translational Research and Imaging Methodology Development in Groningen (BRIDGE), Damage and Repair in Cancer Development and Cancer Treatment (DARE), Graduate School, Radiology and Nuclear Medicine, ACS - Microcirculation, ANS - Cellular & Molecular Mechanisms, ANS - Compulsivity, Impulsivity & Attention, and ANS - Neurovascular Disorders
Subjects: OCCLUSION, IMPACT, intracranial hemorrhages, MULTICENTER, THERAPY, Intracranial Hemorrhages/complications, Brain Ischemia/diagnostic imaging, blood glucose, Endovascular Procedures/adverse effects, cardiovascular diseases, ACUTE ISCHEMIC-STROKE, PREDICTORS, humans, Ischemic Stroke, Thrombectomy, Advanced and Specialized Nursing, INTRAVENOUS ALTEPLASE, MECHANICAL THROMBECTOMY, adult, Other Research Radboud Institute for Health Sciences [Radboudumc 0], Endovascular Procedures, RANDOMIZED-TRIAL, TRANSFORMATION, brain ischemia, Stroke, retrospective studies, Treatment Outcome, Thrombectomy/adverse effects, Neurology (clinical), Cardiology and Cardiovascular Medicine, Stroke/diagnostic imaging
Abstract: Background: Symptomatic intracranial hemorrhage (sICH) is a serious complication after endovascular treatment for ischemic stroke. We aimed to identify determinants of its occurrence and location. Methods: We retrospectively analyzed data from the Dutch MR CLEAN trial (Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands) and MR CLEAN registry. We included adult patients with a large vessel occlusion in the anterior circulation who underwent endovascular treatment within 6.5 hours of stroke onset. We used univariable and multivariable logistic regression analyses to identify determinants of overall sICH occurrence, sICH within infarcted brain tissue, and sICH outside infarcted brain tissue. Results: SICH occurred in 203 (6%) of 3313 included patients and was located within infarcted brain tissue in 50 (25%), outside infarcted brain tissue in 23 (11%), and both within and outside infarcted brain tissue in 116 (57%) patients. In 14 patients (7%), data on location were missing. Prior antiplatelet use, baseline systolic blood pressure, baseline plasma glucose levels, post-endovascular treatment modified treatment in cerebral ischemia score, and duration of procedure were associated with all outcome parameters. In addition, determinants of sICH within infarcted brain tissue included history of myocardial infarction (adjusted odds ratio, 1.65 [95% CI, 1.06–2.56]) and poor collateral score (adjusted odds ratio, 1.42 [95% CI, 1.02–1.95]), whereas determinants of sICH outside infarcted brain tissue included level of occlusion on computed tomography angiography (internal carotid artery or internal carotid artery terminus compared with M1: adjusted odds ratio, 1.79 [95% CI, 1.16–2.78]). Conclusions: Several factors, some potentially modifiable, are associated with sICH occurrence. Further studies should investigate whether modification of baseline systolic blood pressure or plasma glucose level could reduce the risk of sICH. In addition, determinants differ per location of sICH, supporting the hypothesis of varying underlying mechanisms. Registration: URL: https://www.isrctn.com/ ; Unique identifier: ISRCTN10888758.
Published: 2022
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15. Etiology of Large Vessel Occlusion Posterior Circulation Stroke: Results of the MR CLEAN Registry

Author: F.A.V. (Anne) Pirson, Nikki Boodt, Josje Brouwer, Agnetha A.E. Bruggeman, Wouter H. Hinsenveld, Julie Staals, Wim H. van Zwam, Christiaan van der Leij, Rutger J.B. Brans, Charles B.L.M. Majoie, Diederik W.J. Dippel, Aad van der Lugt, Wouter J. Schonewille, Robert J. van Oostenbrugge, Yvo B.W.E.M. Roos, Jelis Boiten, Jan Albert Vos, Ivo G.H. Jansen, Maxim J.H.L. Mulder, Robert- Jan B. Goldhoorn, Kars C.J. Compagne, Manon Kappelhof, Sanne J. den Hartog, Bob Roozenbeek, Bart J. Emmer, Jonathan M. Coutinho, Marieke J.H. Wermer, Marianne A.A. van Walderveen, Adriaan C.G.M. van Es, Jeannette Hofmeijer, Jasper M. Martens, Geert J. Lycklama à Nijeholt, Sebastiaan F. de Bruijn, Lukas C. van Dijk, H. Bart van der Worp, Rob H. Lo, Ewoud J. van Dijk, Hieronymus D. Boogaarts, J. de Vries, Paul L.M. de Kort, Julia van Tuijl, Jo P. Peluso, Puck Fransen, Jan S.P. van den Berg, Boudewijn A.A.M. van Hasselt, Leo A.M. Aerden, René J. Dallinga, Maarten Uyttenboogaart, Omid Eschgi, Reinoud P.H. Bokkers, Tobien H.C.M.L. Schreuder, Roel J.J. Heijboer, Koos Keizer, Lonneke S.F. Yo, Heleen M. den Hertog, Emiel J.C. Sturm, Paul J.A.M. Brouwers, Marieke E.S. Sprengers, Sjoerd F.M. Jenniskens, René van den Berg, Albert J. Yoo, Ludo F.M. Beenen, Alida A. Postma, Stefan D. Roosendaal, Bas F.W. van der Kallen, Ido R. van den Wijngaard, Joost Bot, Pieter-Jan van Doormaal, Anton Meijer, Elyas Ghariq, Marc P. van Proosdij, G. Menno Krietemeijer, Rob Lo, Dick Gerrits, Wouter Dinkelaar, Auke P.A. Appelman, Bas Hammer, Sjoert Pegge, Anouk van der Hoorn, Saman Vinke, Sandra Cornelissen, Rutger Brans, H. Zwenneke Flach, Hester F. Lingsma, Naziha el Ghannouti, Martin Sterrenberg, Wilma Pellikaan, Rita Sprengers, Marjan Elfrink, Michelle Simons, Marjolein Vossers, Joke de Meris, Tamara Vermeulen, Annet Geerlings, Gina van Vemde, Tiny Simons, Gert Messchendorp, Nynke Nicolaij, Hester Bongenaar, Karin Bodde, Sandra Kleijn, Jasmijn Lodico, Hanneke Droste, Maureen Wollaert, Sabrina Verheesen, D. Jeurrissen, Erna Bos, Yvonne Drabbe, Michelle Sandiman, Nicoline Aaldering, Berber Zweedijk, Jocova Vervoort, Eva Ponjee, Sharon Romviel, Karin Kanselaar, Denn Barning, Esmee Venema, Vicky Chalos, Ralph R. Geuskens, Tim van Straaten, Saliha Ergezen, Roger R.M. Harmsma, Daan Muijres, Anouk de Jong, Olvert A. Berkhemer, Anna M.M. Boers, J. Huguet, P.F.C. Groot, Marieke A. Mens, Katinka R. van Kranendonk, Kilian M. Treurniet, Manon L. Tolhuisen, Heitor Alves, Annick J. Weterings, Eleonora L.F. Kirkels, Eva J.H.F. Voogd, Lieve M. Schupp, Sabine L. Collette, Adrien E.D. Groot, Natalie E. LeCouffe, Praneeta R. Konduri, Haryadi Prasetya, Nerea Arrarte-Terreros, Lucas A. Ramos, Anne F.A.V. Pirson, Graduate School, Biomedical Engineering and Physics, ACS - Atherosclerosis & ischemic syndromes, ACS - Microcirculation, ANS - Brain Imaging, ANS - Neurovascular Disorders, Neurology, Radiology & Nuclear Medicine, Public Health, Klinische Neurowetenschappen, RS: Carim - B05 Cerebral small vessel disease, MUMC+: MA Niet Med Staf Neurologie (9), MUMC+: MA Med Staf Spec Neurologie (9), Beeldvorming, MUMC+: DA BV Medisch Specialisten Radiologie (9), RS: Carim - B06 Imaging, MUMC+: MA Neurologie (3), MUMC+: Hersen en Zenuw Centrum (3), Basic and Translational Research and Imaging Methodology Development in Groningen (BRIDGE), Damage and Repair in Cancer Development and Cancer Treatment (DARE), and Radiology and nuclear medicine
Subjects: DIAGNOSIS, EMBOLIC STROKES, UNDETERMINED SOURCE, embolic stroke, ischemic stroke, Humans, Prospective Studies, Registries, Advanced and Specialized Nursing, OUTCOMES, BASILAR ARTERY-OCCLUSION, CLINICAL-FEATURES, Endovascular Procedures, Other Research Radboud Institute for Health Sciences [Radboudumc 0], reperfusion, Stroke, Treatment Outcome, ISCHEMIC-STROKE, thrombectomy, ENDOVASCULAR TREATMENT, RISK-FACTORS, Neurology (clinical), atherosclerosis, Cardiology and Cardiovascular Medicine, SUBTYPE, Rare cancers Radboud Institute for Health Sciences [Radboudumc 9]
Abstract: Background: In patients with large vessel occlusion stroke of the anterior circulation, underlying cause is a determinant of outcome. Whether this is the case for posterior circulation large vessel occlusion stroke has yet to be determined. We aimed to report on cause in patients with posterior circulation stroke treated with endovascular thrombectomy and to analyze the association with functional outcome. Methods: We used data of patients with posterior circulation stroke included in the MR CLEAN (Multicenter Randomized Controlled Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands) registry, a prospective multicenter observational study, between 2014 and 2018. Stroke cause was categorized into large artery atherosclerosis (LAA), cardioembolism, arterial dissection, embolic stroke of undetermined source (ESUS), other determined cause, or undetermined cause. For primary analysis on the association between cause and outcome, we used multivariable ordinal logistic regression analysis to estimate the adjusted common odds ratio for a shift towards a better functional outcome on the modified Rankin Scale at 90 days with LAA as a reference group. Secondary outcomes included favorable functional outcome (modified Rankin Scale score 0–3), National Institutes of Health Stroke Scale score at 24 to 48 hours, reperfusion on digital subtraction angiography, and stroke progression. Results: Of 264 patients with posterior circulation stroke, 84 (32%) had LAA, 48 (18%) cardioembolism, 31 (12%) dissection, and 14 (5%) ESUS. Patients with a dissection were younger (48 [interquartile range, 43–60] years) and had a lower National Institutes of Health Stroke Scale at baseline (12 [interquartile range, 6–31]) than patients with other cause. Functional outcome was better for patients with cardioembolism and ESUS compared to LAA (modified Rankin Scale adjusted common odds ratio, 2.4 [95% CI, 1.1–5.2], respectively adjusted common odds ratio, 3.1 [95% CI, 1.0–9.3]). Patients with a dissection had a lower chance of successful reperfusion compared with LAA (adjusted odds ratio, 0.20 [95% CI, 0.06–0.70]). Conclusions: Unlike the anterior circulation, most frequent cause in our posterior large vessel occlusion stroke cohort is LAA followed by cardioembolism, dissection, and ESUS. Patients with cardioembolism and ESUS have a better prognosis for functional outcome after endovascular thrombectomy than patients with LAA.
Published: 2022
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16. Patient-Reported Experience Measures in Stroke Care

Author: Paul J. Nederkoorn, Sanne J. den Hartog, Bob Roozenbeek, Renske M. Van den Berg-Vos, Cosette Cornelis, Carla M Bastemeijer, Neurology, ACS - Atherosclerosis & ischemic syndromes, ANS - Neurovascular Disorders, Public Health, and Radiology & Nuclear Medicine
Subjects: medicine.medical_specialty, Quality management, psychometric, patient-centered care, Stroke care, quality improvement, 03 medical and health sciences, 0302 clinical medicine, systematic review, Health care, Humans, Medicine, Patient Reported Outcome Measures, cardiovascular diseases, 030212 general & internal medicine, Stroke, Advanced and Specialized Nursing, business.industry, 030503 health policy & services, Patient-centered care, medicine.disease, stroke, Patient Satisfaction, Physical therapy, Neurology (clinical), 0305 other medical science, Cardiology and Cardiovascular Medicine, business
Abstract: Background and Purpose: Patient-reported experience measures (PREMs) assess patients’ perception of health care. We aimed to identify all reported PREMs for stroke care and critically appraise psychometric properties of PREMs validated for patients with stroke. Methods: Studies on the development, validation, or utilization of PREMs for adult patients with stroke were systematically identified. The Consensus-Based Standards for the Selection of Health Measurement Instruments criteria were used to appraise psychometric performance. Results: We included 18 studies, examining 13 PREMs. Two PREMs had been developed for stroke care: Consumer Quality Index: Cerebrovascular Accident and Riksstroke. Consumer Quality Index: Cerebrovascular Accident was given a positive psychometric assessment, but its length and limited language applicability impede clinical implementation. Riksstroke was appraised as doubtful. Eleven PREMs were generic. The psychometric performance of 5 generic PREMS, validated for patients with stroke, received conflicting assessments. Six generic PREMs had not been validated in patients with stroke and were therefore not assessed for instrument performance. Conclusions: Thirteen PREMs have been published for use in stroke care. The stroke-specific Consumer Quality Index: Cerebrovascular Accident has favorable psychometric performance but lacks practical feasibility. Other PREMs have inadequate or unknown psychometric properties. This indicates the need for developing stroke-specific PREMs to support quality improvement and enhance patient-centered care.
Published: 2021
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17. Pathology-proven extradural ('distant') metastases of gliomas in adults in the Netherlands between 1971 and 2018

Author: Annette Bruggink, Joyce Wilbers, Anja van der Kolk, Pieter Wesseling, Sanne J den Hartog, Tatjana Seute, Pathology, CCA - Cancer biology and immunology, and Neurology
Subjects: Ependymoma, medicine.medical_specialty, Pathology, business.industry, Medicine (miscellaneous), Original Articles, medicine.disease, Diffuse Glioma, medicine.anatomical_structure, All institutes and research themes of the Radboud University Medical Center, Cytopathology, Glioma, medicine, Immunohistochemistry, Histopathology, Lymph, Bone marrow, business, Rare cancers Radboud Institute for Health Sciences [Radboudumc 9]
Abstract: Background Diffuse gliomas are the most frequent primary tumors originating in the central nervous system parenchyma. Although the majority of these tumors are highly malignant, extradural metastases (EDM) are extremely rare. We aimed to perform a systematic review of patients with pathology-proven EDM of diffuse gliomas in the Netherlands. Methods From the Nationwide Network and Registry of Histo- and Cytopathology in the Netherlands information on all cases with EDM between 1971 and October 2018 was retrieved. Patients aged < 18 years or with a diagnosis of ependymoma or continuous tumor growth from intradural to extradural were excluded. Demographics, initial tumor diagnosis, treatment characteristics, location of the EDM, and survival data were collected. IDH1 R132H immunohistochemistry was performed on cases in which a paraffin block of the metastatic tumor could be retrieved. Results Twenty-five patients with diffuse glioma and pathology-proven EDM were identified. Median age at diagnosis of glioma was 46 years (IQR: 35-59); 21 patients (84%) were male. Histopathologic diagnosis was glioblastoma in 17 patients (68%) and lower-grade tumor in eight patients. In 3 out of 12 patients of which a paraffin block could be retrieved immunohistochemistry revealed an IDH1-mutant glioma. Most frequent EDM locations were bone/bone marrow (14/25 patients; 56%), and lymph nodes (6/25 patients; 24%). Conclusion EDM of diffuse glioma are rare. They occur most frequently in patients with glioblastoma, however, they can also originate from lower-grade, IDH-mutant gliomas. In daily practice, EDM of diffuse glioma should be considered in patients with tumefactive lesions of the bone or lymph nodes.
Published: 2021
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18. Improvements in endovascular treatment for acute ischemic stroke

Author: Kars C.J. Compagne, Manon Kappelhof, Wouter H. Hinsenveld, Josje Brouwer, Robert-Jan B. Goldhoorn, Maarten Uyttenboogaart, Reinoud P.H. Bokkers, Wouter J. Schonewille, Jasper M. Martens, Jeannette Hofmeijer, H. Bart van der Worp, Rob T.H. Lo, Koos Keizer, Lonneke S.F. Yo, Geert J. Lycklama à Nijeholt, Heleen M. den Hertog, Emiel J.C. Sturm, Paul J.A.M. Brouwers, Marianne A.A. van Walderveen, Marieke J.H. Wermer, Sebastiaan F. de Bruijn, Lukas C. van Dijk, Hieronymus D. Boogaarts, Ewout J. van Dijk, Julia H. van Tuijl, Jo P.P. Peluso, Paul L.M. de Kort, Boudewijn A.A.M. van Hasselt, Puck S. Fransen, Tobien H.C.M.L. Schreuder, Roel J.J. Heijboer, Sjoerd F.M. Jenniskens, Marieke E.S. Sprengers, Elias Ghariq, Ido R. van den Wijngaard, Stefan D. Roosendaal, Anton F.J.A. Meijer, Ludo F.M. Beenen, Alida A. Postma, René van den Berg, Albert J. Yoo, Pieter Jan van Doormaal, Marc P. van Proosdij, Menno G.M. Krietemeijer, Dick G. Gerrits, Sebastiaan Hammer, Jan Albert Vos, Jelis Boiten, Jonathan M. Coutinho, Bart J. Emmer, Ad C.G.M. van Es, Bob Roozenbeek, Yvo B.W.E.M. Roos, Wim H. van Zwam, Robert J. van Oostenbrugge, Charles B.L.M. Majoie, Diederik W.J. Dippel, Aad van der Lugt, Ivo G.H. Jansen, Maxim J.H.L. Mulder, Sanne J. den Hartog, Julie Staals, Rob H. Lo, Ewoud J. van Dijk, J. de Vries, Julia van Tuijl, Jo P. Peluso, Puck Fransen, Jan S.P. van den Berg, Leo A.M. Aerden, René J. Dallinga, Omid Eschgi, Tomas Bulut, Bas F.W. van der Kallen, Joost Bot, Pieter-Jan van Doormaal, Anton Meijer, Elyas Ghariq, Rob Lo, Wouter Dinkelaar, Auke P.A. Appelman, Bas Hammer, Sjoert Pegge, Anouk van der Hoorn, Saman Vinke, H. Zwenneke Flach, Hester F. Lingsma, Naziha el Ghannouti, Martin Sterrenberg, Wilma Pellikaan, Rita Sprengers, Marjan Elfrink, Michelle Simons, Marjolein Vossers, Joke de Meris, Tamara Vermeulen, Annet Geerlings, Gina van Vemde, Tiny Simons, Gert Messchendorp, Nynke Nicolaij, Hester Bongenaar, Karin Bodde, Sandra Kleijn, Jasmijn Lodico, Hanneke Droste, Maureen Wollaert, Sabrina Verheesen, D. Jeurrissen, Erna Bos, Yvonne Drabbe, Michelle Sandiman, Nicoline Aaldering, Berber Zweedijk, Jocova Vervoort, Eva Ponjee, Sharon Romviel, Karin Kanselaar, Denn Barning, Esmee Venema, Vicky Chalos, Ralph R. Geuskens, Tim van Straaten, Saliha Ergezen, Roger R.M. Harmsma, Daan Muijres, Anouk de Jong, Olvert A. Berkhemer, Anna M.M. Boers, J. Huguet, P.F.C. Groot, Marieke A. Mens, Katinka R. van Kranendonk, Kilian M. Treurniet, Manon L. Tolhuisen, Heitor Alves, Annick J. Weterings, Eleonora L.F. Kirkels, Eva J.H.F. Voogd, Lieve M. Schupp, Sabine L. Collette, Adrien E.D. Groot, Natalie E. LeCouffe, Praneeta R. Konduri, Haryadi Prasetya, Nerea Arrarte-Terreros, Lucas A. Ramos, TechMed Centre, Clinical Neurophysiology, Klinische Neurowetenschappen, RS: Carim - B05 Cerebral small vessel disease, MUMC+: MA AIOS Neurologie (9), RS: MHeNs - R1 - Cognitive Neuropsychiatry and Clinical Neuroscience, MUMC+: DA BV AIOS Radiologie (9), Beeldvorming, MUMC+: DA BV AIOS Nucleaire Geneeskunde (9), MUMC+: DA BV Medisch Specialisten Radiologie (9), RS: Carim - B06 Imaging, MUMC+: MA Neurologie (3), MUMC+: Hersen en Zenuw Centrum (3), Basic and Translational Research and Imaging Methodology Development in Groningen (BRIDGE), Damage and Repair in Cancer Development and Cancer Treatment (DARE), Radiology & Nuclear Medicine, Neurology, Radiology and Nuclear Medicine, ANS - Cellular & Molecular Mechanisms, ANS - Compulsivity, Impulsivity & Attention, ANS - Neurovascular Disorders, ACS - Microcirculation, ACS - Atherosclerosis & ischemic syndromes, Graduate School, ACS - Pulmonary hypertension & thrombosis, Pediatrics, and Radiology and nuclear medicine
Subjects: ratio, Vascular damage Radboud Institute for Health Sciences [Radboudumc 16], SOCIETY, registry, GUIDELINES, Brain Ischemia, Tumours of the digestive tract Radboud Institute for Health Sciences [Radboudumc 14], MANAGEMENT, IMPUTATION, Humans, Longitudinal Studies, Registries, groin odds, SCALE, Ischemic Stroke, Advanced and Specialized Nursing, OUTCOMES, Other Research Radboud Institute for Health Sciences [Radboudumc 0], Endovascular Procedures, THROMBECTOMY, Disorders of movement Donders Center for Medical Neuroscience [Radboudumc 3], reperfusion, Stroke, Treatment Outcome, RELIABILITY, Neurology (clinical), puncture, Cardiology and Cardiovascular Medicine, SYSTEMATIC EVALUATION, Rare cancers Radboud Institute for Health Sciences [Radboudumc 9]
Abstract: Background: We evaluated data from all patients in the Netherlands who underwent endovascular treatment for acute ischemic stroke in the past 3.5 years, to identify nationwide trends in time to treatment and procedural success, and assess their effect on clinical outcomes. Methods: We included patients with proximal occlusions of the anterior circulation from the second and first cohorts of the MR CLEAN (Multicenter Randomized Clinical trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands) Registry (March 2014 to June 2016; June 2016 to November 2017, respectively). We compared workflow times and rates of successful reperfusion (defined as an extended Thrombolysis in Cerebral Infarction score of 2B-3) between cohorts and chronological quartiles (all included patients stratified in chronological quartiles of intervention dates to create equally sized groups over the study period). Multivariable ordinal logistic regression was used to assess differences in the primary outcome (ordinal modified Rankin Scale at 90 days). Results: Baseline characteristics were similar between cohorts (second cohort n=1692, first cohort n=1488) except for higher age, poorer collaterals, and less signs of early ischemia on computed tomography in the second cohort. Time from stroke onset to groin puncture and reperfusion were shorter in the second cohort (median 185 versus 210 minutes; P P P Conclusions: Clinical outcomes after endovascular treatment for acute ischemic stroke in routine clinical practice have improved over the past years, likely resulting from improved workflow times and higher successful reperfusion rates.
Published: 2022
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19. White matter lesions and outcomes after endovascular treatment for acute ischemic stroke MR CLEAN registry results

Author: Simone M. Uniken Venema, Alida A. Postma, Ido R. van den Wijngaard, Jan Albert Vos, Hester F. Lingsma, Reinoud P.H. Bokkers, Jeannette Hofmeijer, Diederik W.J. Dippel, Charles B. Majoie, H. Bart van der Worp, Aad van der Lugt, Yvo B.W.E.M. Roos, Robert J. van Oostenbrugge, Wim H. van Zwam, Jelis Boiten, Ivo G.H. Jansen, Maxim J.H.L. Mulder, Robert- Jan B. Goldhoorn, Kars C.J. Compagne, Manon Kappelhof, Josje Brouwer, Sanne J. den Hartog, Wouter H. Hinsenveld, Bob Roozenbeek, Adriaan C.G.M. van Es, Bart J. Emmer, Jonathan M. Coutinho, Wouter J. Schonewille, Marieke J.H. Wermer, Marianne A.A. van Walderveen, Julie Staals, Jasper M. Martens, Geert J. Lycklama à Nijeholt, Sebastiaan F. de Bruijn, Lukas C. van Dijk, Rob H. Lo, Ewoud J. van Dijk, Hieronymus D. Boogaarts, J. de Vries, Paul L.M. de Kort, Julia van Tuijl, Jo P. Peluso, Puck Fransen, Jan S.P. van den Berg, Boudewijn A.A.M. van Hasselt, Leo A.M. Aerden, René J. Dallinga, Maarten Uyttenboogaart, Omid Eschgi, Tobien H.C.M.L. Schreuder, Roel J.J. Heijboer, Koos Keizer, Lonneke S.F. Yo, Heleen M. den Hertog, Emiel J.C. Sturm, Paul J.A.M. Brouwers, Marieke E.S. Sprengers, Sjoerd F.M. Jenniskens, René van den Berg, Albert J. Yoo, Ludo F.M. Beenen, Stefan D. Roosendaal, Bas F.W. van der Kallen, Joost Bot, Pieter-Jan van Doormaal, Anton Meijer, Elyas Ghariq, Marc P. van Proosdij, G. Menno Krietemeijer, Rob Lo, Dick Gerrits, Wouter Dinkelaar, Auke P.A. Appelman, Bas Hammer, Sjoert Pegge, Anouk van der Hoorn, Saman Vinke, H. Zwenneke Flach, Naziha el Ghannouti, Martin Sterrenberg, Wilma Pellikaan, Rita Sprengers, Marjan Elfrink, Michelle Simons, Marjolein Vossers, Joke de Meris, Tamara Vermeulen, Annet Geerlings, Gina van Vemde, Tiny Simons, Gert Messchendorp, Nynke Nicolaij, Hester Bongenaar, Karin Bodde, Sandra Kleijn, Jasmijn Lodico, Hanneke Droste, Maureen Wollaert, Sabrina Verheesen, D. Jeurrissen, Erna Bos, Yvonne Drabbe, Michelle Sandiman, Nicoline Aaldering, Berber Zweedijk, Jocova Vervoort, Eva Ponjee, Sharon Romviel, Karin Kanselaar, Denn Barning, Esmee Venema, Vicky Chalos, Ralph R. Geuskens, Tim van Straaten, Saliha Ergezen, Roger R.M. Harmsma, Daan Muijres, Anouk de Jong, Olvert A. Berkhemer, Anna M.M. Boers, J. Huguet, P.F.C. Groot, Marieke A. Mens, Katinka R. van Kranendonk, Kilian M. Treurniet, Manon L. Tolhuisen, Heitor Alves, Annick J. Weterings, Eleonora L.F. Kirkels, Eva J.H.F. Voogd, Lieve M. Schupp, Sabine L. Collette, Adrien E.D. Groot, Natalie E. LeCouffe, Praneeta R. Konduri, Haryadi Prasetya, Nerea Arrarte-Terreros, Lucas A. Ramos, Radiology and Nuclear Medicine, ACS - Microcirculation, Amsterdam Neuroscience - Neurovascular Disorders, ACS - Atherosclerosis & ischemic syndromes, TechMed Centre, Clinical Neurophysiology, Basic and Translational Research and Imaging Methodology Development in Groningen (BRIDGE), Damage and Repair in Cancer Development and Cancer Treatment (DARE), Neurology, Public Health, RS: MHeNs - R1 - Cognitive Neuropsychiatry and Clinical Neuroscience, Beeldvorming, MUMC+: DA BV AIOS Nucleaire Geneeskunde (9), MUMC+: DA BV AIOS Radiologie (9), and MUMC+: DA BV Medisch Specialisten Radiologie (9)
Subjects: medicine.medical_treatment, Original Contributions, Vascular damage Radboud Institute for Health Sciences [Radboudumc 16], LEUKOARAIOSIS, Logistic regression, THERAPY, ANGIOGRAPHY, law.invention, Brain Ischemia, HEMORRHAGE, Randomized controlled trial, law, Modified Rankin Scale, odds ratio, Prospective Studies, ComputingMilieux_MISCELLANEOUS, Aged, 80 and over, Cerebral infarction, Endovascular Procedures, Thrombolysis, Middle Aged, THROMBECTOMY, Disorders of movement Donders Center for Medical Neuroscience [Radboudumc 3], White Matter, Stroke, COLLATERALS, AGREEMENT, Cardiology, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, cerebral small vessel diseases, Cardiology and Cardiovascular Medicine, Intracranial Hemorrhages, radiography, Cohort study, medicine.medical_specialty, acute ischemic stroke, FUTILE RECANALIZATION, SMALL-VESSEL DISEASE, Clinical and Population Sciences, Internal medicine, medicine, Humans, METAANALYSIS, Aged, Advanced and Specialized Nursing, business.industry, Other Research Radboud Institute for Health Sciences [Radboudumc 0], registries, Odds ratio, medicine.disease, Hyperintensity, Neurology (clinical), business
Abstract: Supplemental Digital Content is available in the text., Background: Cerebral white matter lesions (WMLs) have been associated with a greater risk of poor functional outcome after ischemic stroke. We assessed the relations between WML burden and radiological and clinical outcomes in patients treated with endovascular treatment in routine practice. Methods: We analyzed data from the MR CLEAN Registry (Multicenter Randomized Controlled Trial of Endovascular Treatment for Acute Ischaemic Stroke in the Netherlands)—a prospective, multicenter, observational cohort study of patients treated with endovascular treatment in the Netherlands. WMLs were graded on baseline noncontrast computed tomography using a visual grading scale. The primary outcome was the score on the modified Rankin Scale at 90 days. Secondary outcomes included early neurological recovery, successful reperfusion (extended Thrombolysis in Cerebral Infarction ≥2b), futile recanalization (modified Rankin Scale score ≥3 despite successful reperfusion), and occurrence of symptomatic intracranial hemorrhage. We used multivariable logistic regression models to assess associations between WML severity and outcomes, taking the absence of WML on noncontrast computed tomography as the reference category. Results: Of 3180 patients included in the MR CLEAN Registry between March 2014 and November 2017, WMLs were graded for 3046 patients and categorized as none (n=1855; 61%), mild (n=608; 20%), or moderate to severe (n=588; 19%). Favorable outcome (modified Rankin Scale score, 0–2) was achieved in 838 patients (49%) without WML, 192 patients (34%) with mild WML, and 130 patients (24%) with moderate-to-severe WML. Increasing WML grades were associated with a shift toward poorer functional outcome in a dose-dependent manner (adjusted common odds ratio, 1.34 [95% CI, 1.13–1.60] for mild WML and 1.67 [95% CI, 1.39–2.01] for moderate-to-severe WML; Ptrend
Published: 2021

20. Endovascular treatment in anterior circulation stroke beyond 6.5 hours after onset or time last seen well: results from the MR CLEAN Registry

Author: Robert J van Oostenbrugge, Wim H van Zwam, Maarten Uyttenboogaart, Yvo B W E M Roos, Jeannette Hofmeijer, Jasper M Martens, Ivo G H Jansen, Ludo F M Beenen, Hester F Lingsma, Albert J Yoo, Diederik W J Dippel, Charles B L M Majoie, Olvert A Berkhemer, Bart J Emmer, Marianne A A van Walderveen, Sjoerd F M Jenniskens, Wouter J Schonewille, Jan Albert Vos, Julie Staals, Geert J Lycklama à nijeholt, Jelis Boiten, Rob H Lo, Ewoud J Van Dijk, René J Dallinga, Koos Keizer, Heleen M Den Hertog, Katinka R van Kranendonk, Kilian M Treurniet, Esmee Venema, Bob Roozenbeek, Robin Lemmens, Robert-Jan B Goldhoorn, Ido R van den Wijngaard, Jonathan M Coutinho, Stefan D Roosendaal, Joost Bot, Naziha El Ghannouti, Martin Sterrenberg, Wilma Pellikaan, Rita Sprengers, Marjan Elfrink, Joke de Meris, Tamara Vermeulen, Annet Geerlings, Gina van Vemde, Tiny Simons, Gert Messchendorp, Hester Bongenaar, Karin Bodde, Sandra Kleijn, Jasmijn Lodico, D Jeurrissen, Erna Bos, Yvonne Drabbe, Berber Zweedijk, Daan Muijres, J Huguet, Marieke A Mens, Manon Kappelhof, Heitor Alves, Manon L Tolhuisen, Alida A Postma, Reinoud P H Bokkers, Maxim J H L Mulder, Kars C J Compagne, Josje Brouwer, Wouter H Hinsenveld, Marieke J H Wermer, J de Vries, Julia van Tuijl, Jo P Peluso, Puck Fransen, Leo A M Aerden, Omid Eschgi, Tobien H C M L Schreuder, Roel J J Heijboer, Lonneke S F Yo, Emiel J C Sturm, Paul J A M Brouwers, Marieke E S Sprengers, René van den Berg, Pieter-Jan van Doormaal, Anton Meijer, Elyas Ghariq, Dick Gerrits, Wouter Dinkelaar, Auke P A Appelman, Bas Hammer, Sjoert Pegge, Anouk van der Hoorn, Saman Vinke, Michelle Simons, Marjolein Vossers, Nynke Nicolaij, Hanneke Droste, Maureen Wollaert, Sabrina Verheesen, Michelle Sandiman, Nicoline Aaldering, Jocova Vervoort, Eva Ponjee, Sharon Romviel, Annick J Weterings, Lieve M Schupp, Sabine Collette, Natalie E LeCouffe, Praneeta R Konduri, Haryadi Prasetya, Nerea Arrarte-Terreros, Lucas A Ramos, C Lukas, Luuk Dekker, F Anne V Pirson, Adriaan C G M van Es, Sanne J den Hartog, Sebastiaan F de Bruijnl, H van Dijk, Bart van der Worp, D Boogaarts Hieronymus, Paul L M de Kort, Jan S P van den Berg, Boudewijn A A M van Hasselt, Bas F W van der Kallen, P Marc, G van Proosdij, Menno Krietemeijer, Roger R M Harmsma, M M Anna Boers, P F C Groot, Eleonora L F Kirkels, Eva J H F Voogd, Adrien E D Groot, Radiology and Nuclear Medicine, ACS - Microcirculation, ANS - Neurovascular Disorders, ACS - Atherosclerosis & ischemic syndromes, ANS - Cellular & Molecular Mechanisms, ANS - Compulsivity, Impulsivity & Attention, Neurology, Public Health, Klinische Neurowetenschappen, MUMC+: MA Niet Med Staf Neurologie (9), RS: Carim - B05 Cerebral small vessel disease, Beeldvorming, MUMC+: DA BV Medisch Specialisten Radiologie (9), and RS: Carim - B06 Imaging
Subjects: medicine.medical_treatment, Perfusion scanning, GUIDELINES, lcsh:RC346-429, Brain Ischemia, EARLY MANAGEMENT, law.invention, 0302 clinical medicine, Randomized controlled trial, law, Modified Rankin Scale, Occlusion, Medicine, Prospective Studies, Registries, ACUTE ISCHEMIC-STROKE, 030212 general & internal medicine, Stroke, Original Research, Thrombectomy, OUTCOMES, medicine.diagnostic_test, Endovascular Procedures, Thrombolysis, THROMBECTOMY, Cardiology, INFARCTION, Cardiology and Cardiovascular Medicine, Life Sciences & Biomedicine, medicine.medical_specialty, Clinical Neurology, 03 medical and health sciences, Internal medicine, SCORE, Humans, lcsh:Neurology. Diseases of the nervous system, Ischemic Stroke, HEALTH-CARE PROFESSIONALS, Science & Technology, business.industry, Other Research Radboud Institute for Health Sciences [Radboudumc 0], CT ANGIOGRAPHY, medicine.disease, United States, Angiography, Propensity score matching, Neurosciences & Neurology, Neurology (clinical), business, 030217 neurology & neurosurgery
Abstract: BackgroundRandomised controlled trials with perfusion selection have shown benefit of endovascular treatment (EVT) for ischaemic stroke between 6 and 24 hours after symptom onset or time last seen well. However, outcomes after EVT in these late window patients without perfusion imaging are largely unknown. We assessed their characteristics and outcomes in routine clinical practice.MethodsThe Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands Registry, a prospective, multicentre study in the Netherlands, included patients with an anterior circulation occlusion who underwent EVT between 2014 and 2017. CT perfusion was no standard imaging modality. We used adjusted ordinal logistic regression analysis to compare patients treated within versus beyond 6.5 hours after propensity score matching on age, prestroke modified Rankin Scale (mRS), National Institutes of Health Stroke Scale, Alberta Stroke Programme Early CT Score (ASPECTS), collateral status, location of occlusion and treatment with intravenous thrombolysis. Outcomes included 3-month mRS score, functional independence (defined as mRS 0–2), and death.ResultsOf 3264 patients who underwent EVT, 106 (3.2%) were treated beyond 6.5 hours (median 8.5, IQR 6.9–10.6), of whom 93 (87.7%) had unknown time of stroke onset. CT perfusion was not performed in 87/106 (80.2%) late window patients. Late window patients were younger (mean 67 vs 70 years, pConclusionsWithout the use of CT perfusion selection criteria, EVT in the 6.5–24-hour time window was not associated with poorer outcome in selected patients with favourable clinical and CT/CT angiography characteristics. randomised controlled trials with lenient inclusion criteria are needed to identify more patients who can benefit from EVT in the late window.
Published: 2021

21. Effect of first pass reperfusion on outcome in patients with posterior circulation ischemic stroke

Author: Diederik W.J. Dippel, Clean Registry Investigators, Nikki Boodt, Ido R. van den Wijngaard, Sanne J den Hartog, Charles B. L. M. Majoie, Bart J. Emmer, Hester F. Lingsma, Agnetha A E Bruggeman, Adriaan C.G.M. van Es, Wim H. van Zwam, Pieter Jan van Doormaal, Bob Roozenbeek, Beeldvorming, MUMC+: DA BV Medisch Specialisten Radiologie (9), RS: Carim - B05 Cerebral small vessel disease, RS: Carim - B06 Imaging, Radiology and Nuclear Medicine, Graduate School, ACS - Microcirculation, ANS - Brain Imaging, ACS - Atherosclerosis & ischemic syndromes, ANS - Neurovascular Disorders, Neurology, Radiology & Nuclear Medicine, Public Health, Basic and Translational Research and Imaging Methodology Development in Groningen (BRIDGE), and Damage and Repair in Cancer Development and Cancer Treatment (DARE)
Subjects: medicine.medical_specialty, brain, Ischemia, 030204 cardiovascular system & hematology, Brain Ischemia, 03 medical and health sciences, 0302 clinical medicine, Modified Rankin Scale, Internal medicine, medicine, Humans, In patient, PREDICTORS, Stroke, STENT RETRIEVER THROMBECTOMY, intervention, Ischemic Stroke, Thrombectomy, First pass, business.industry, BASILAR ARTERY-OCCLUSION, Endovascular Procedures, General Medicine, medicine.disease, medicine.anatomical_structure, Treatment Outcome, ENDOVASCULAR TREATMENT, Ischemic stroke, Reperfusion, Cardiology, Surgery, Observational study, Neurology (clinical), business, 030217 neurology & neurosurgery, Artery
Abstract: BackgroundFirst pass reperfusion (FPR), that is, excellent reperfusion (expanded treatment in cerebral ischemia (eTICI) 2C-3) in one pass, after endovascular treatment (EVT) of an occluded artery in the anterior circulation, is associated with favorable clinical outcome, even when compared with multiple pass excellent reperfusion (MPR). In patients with posterior circulation ischemic stroke (PCS), the same association is expected, but currently unknown. We aimed to assess characteristics associated with FPR and the influence of FPR versus MPR on outcomes in patients with PCS.MethodsWe used data from the MR CLEAN Registry, a prospective observational study. The effect of FPR on 24-hour National Institutes of Health Stroke Scale (NIHSS) score, as percentage reduction, and on modified Rankin Scale (mRS) scores at 3 months, was tested with linear and ordinal logistic regression models.ResultsOf 224 patients with PCS, 45 patients had FPR, 47 had MPR, and 90 had no excellent reperfusion (eTICI ConclusionsFPR in patients with PCS is associated with favorable clinical outcome in comparison with no FPR. In comparison with MPR, the effect of FPR was no longer statistically significant. Nevertheless, our data support the notion that FPR should be the treatment target to pursue in every patient treated with EVT.
Published: 2021

22. Importance of Occlusion Site for Thrombectomy Technique in Stroke: Comparison Between Aspiration and Stent Retriever

Author: Marie Louise E. Bernsen, Robert-Jan B. Goldhoorn, Hester F. Lingsma, Robert J. van Oostenbrugge, Wim H. van Zwam, Maarten Uyttenboogaart, Yvo B.W.E.M. Roos, Jasper M. Martens, Jeannette Hofmeijer, Diederik W.J. Dippel, Aad van der Lugt, Charles B.L.M. Majoie, Jelis Boiten, Jan Albert Vos, Ivo G.H. Jansen, Maxim J.H.L. Mulder, Robert- Jan B. Goldhoorn, Kars C.J. Compagne, Manon Kappelhof, Josje Brouwer, Sanne J. den Hartog, Wouter H. Hinsenveld, Bob Roozenbeek, Adriaan C.G.M. van Es, Bart J. Emmer, Jonathan M. Coutinho, Wouter J. Schonewille, Marieke J.H. Wermer, Marianne A.A. van Walderveen, Julie Staals, Geert J. Lycklama, à Nijeholt, Sebastiaan F. de Bruijn, Lukas C. van Dijk, H. Bart van der Worp, Rob H. Lo, Ewoud J. van Dijk, Hieronymus D. Boogaarts, J. de Vries, Paul L.M. de Kort, Julia van Tuijl, Jo P. Peluso, Puck Fransen, Jan S.P. van den Berg, Boudewijn A.A.M. van Hasselt, Leo A.M. Aerden, René J. Dallinga, Omid Eschgi, Reinoud P.H. Bokkers, Tobien H.C.M.L. Schreuder, Roel J.J. Heijboer, Koos Keizer, Lonneke S.F. Yo, Heleen M. den Hertog, Tomas Bulut, Paul J.A.M. Brouwers, Marieke E.S. Sprengers, Sjoerd F.M. Jenniskens, René van den Berg, Albert J. Yoo, Ludo F.M. Beenen, Alida A. Postma, Stefan D. Roosendaal, Bas F.W. van der Kallen, Ido R. van den Wijngaard, Joost Bot, Pieter-Jan van Doormaal, Anton Meijer, Elyas Ghariq, Marc P. van Proosdij, G. Menno Krietemeijer, Rob Lo, Dick Gerrits, Wouter Dinkelaar, Auke P.A. Appelman, Bas Hammer, Sjoert Pegge, Anouk van der Hoorn, Saman Vinke, H. Zwenneke Flach, Naziha el Ghannouti, Martin Sterrenberg, Wilma Pellikaan, Rita Sprengers, Marjan Elfrink, Michelle Simons, Marjolein Vossers, Joke de Meris, Tamara Vermeulen, Annet Geerlings, Gina van Vemde, Tiny Simons, Gert Messchendorp, Nynke Nicolaij, Hester Bongenaar, Karin Bodde, Sandra Kleijn, Jasmijn Lodico, Hanneke Droste, Maureen Wollaert, Sabrina Verheesen, D. Jeurrissen, Erna Bos, Yvonne Drabbe, Michelle Sandiman, Nicoline Aaldering, Berber Zweedijk, Jocova Vervoort, Eva Ponjee, Sharon Romviel, Karin Kanselaar, Denn Barning, Esmee Venema, Vicky Chalos, Ralph R. Geuskens, Tim van Straaten, Saliha Ergezen, Roger R.M. Harmsma, Daan Muijres, Anouk de Jong, Olvert A. Berkhemer, Anna M.M. Boers, J. Huguet, P.F.C. Groot, Marieke A. Mens, Katinka R. van Kranendonk, Kilian M. Treurniet, Manon L. Tolhuisen, Heitor Alves, Annick J. Weterings, Eleonora L.F. Kirkels, Eva J.H.F. Voogd, Lieve M. Schupp, Sabine L. Collette, Adrien E.D. Groot, Natalie E. LeCouffe, Praneeta R. Konduri, Haryadi Prasetya, Nerea Arrarte-Terreros, Lucas A. Ramos, Basic and Translational Research and Imaging Methodology Development in Groningen (BRIDGE), Damage and Repair in Cancer Development and Cancer Treatment (DARE), MUMC+: MA AIOS Neurologie (9), Klinische Neurowetenschappen, RS: Carim - B05 Cerebral small vessel disease, RS: MHeNs - R1 - Cognitive Neuropsychiatry and Clinical Neuroscience, MUMC+: MA Neurologie (3), MUMC+: Hersen en Zenuw Centrum (3), Beeldvorming, MUMC+: DA BV Medisch Specialisten Radiologie (9), RS: Carim - B06 Imaging, Clinical Neurophysiology, TechMed Centre, Public Health, Neurology, ACS - Atherosclerosis & ischemic syndromes, ANS - Neurovascular Disorders, ACS - Microcirculation, ACS - Pulmonary hypertension & thrombosis, Graduate School, and Radiology and Nuclear Medicine
Subjects: Male, medicine.medical_treatment, Vascular damage Radboud Institute for Health Sciences [Radboudumc 16], M2 SEGMENT, 030218 nuclear medicine & medical imaging, 0302 clinical medicine, carotid arteries, CONTACT ASPIRATION, Occlusion, ACUTE ISCHEMIC-STROKE, Stroke, Acute ischemic stroke, Netherlands, Aged, 80 and over, endovascular procedure, LARGE VESSEL OCCLUSION, Endovascular Procedures, Middle Aged, Disorders of movement Donders Center for Medical Neuroscience [Radboudumc 3], stroke, reperfusion, Treatment Outcome, thrombectomy, Middle cerebral artery, Female, Internal carotid artery, ADAPT, Cardiology and Cardiovascular Medicine, INTERNAL CAROTID-ARTERY, Rare cancers Radboud Institute for Health Sciences [Radboudumc 9], medicine.medical_specialty, 03 medical and health sciences, medicine.artery, MIDDLE CEREBRAL-ARTERY, medicine, Humans, Endovascular treatment, Stent retriever, Aged, Advanced and Specialized Nursing, middle cerebral artery, business.industry, MECHANICAL THROMBECTOMY, Other Research Radboud Institute for Health Sciences [Radboudumc 0], Stent, medicine.disease, RANDOMIZED-TRIAL, Surgery, ENDOVASCULAR TREATMENT, stent, Neurology (clinical), business, 030217 neurology & neurosurgery
Abstract: Background and Purpose: Thrombectomy with stent retriever and direct aspiration are equally effective in the endovascular treatment of anterior circulation acute ischemic stroke. We report efficacy and safety of initial treatment technique per occlusion segment. Methods: For this study, we analyzed data from the MR CLEAN Registry, a prospective, observational study in all centers that perform endovascular therapy in the Netherlands. We used ordinal logistic regression analysis to compare clinical and technical results of first line direct aspiration treatment with that of stent retriever thrombectomy stratified for occlusion segment. Primary outcome measure was functional outcome at 3 months. Secondary outcome measures included reperfusion grade expressed as the extended Thrombolysis in Cerebral Infarction score, periprocedural complication risk, time to reperfusion, and mortality. Results: Of the 2282 included patients, 1658 (73%) were initially treated with stent retriever and 624 (27%) with aspiration. Four hundred sixty-two patients had an occlusion of the intracranial part of the carotid artery, 1349 of the proximal middle cerebral artery, and 471 of the distal parts of the middle cerebral artery. There was no difference in functional outcome between aspiration and stent retriever thrombectomy (odds ratio, 1.0 [95% CI, 0.9–1.2]) in any of the occlusion segments ( P value for interaction=0.2). Reperfusion rate was higher in the aspiration group (odds ratio, 1.4 [95% CI, 1.1–1.6]) and did not differ between occlusion segments ( P value for interaction=0.6). Procedure times were shorter in the aspiration group (minutes 50 versus 65 minutes; P Conclusions: In unselected patients with anterior circulation infarcts, we observed equal functional outcome of aspiration and stent retriever thrombectomy in all occlusion segments. When aspiration was the first line treatment modality, reperfusion rates were higher and procedure times shorter in all occlusion segments.
Published: 2021

23. Path from clinical research to implementation endovascular treatment of ischemic stroke in the Netherlands

Author: Eveline J.A. Wiegers, Kars C.J. Compagne, Paula M. Janssen, Esmee Venema, Jaap W. Deckers, Wouter J. Schonewille, Jan Albert Vos, Geert J. Lycklama à Nijeholt, Bob Roozenbeek, Jasper M. Martens, Jeannette Hofmeijer, Robert-Jan van Oostenbrugge, Wim H. van Zwam, Charles B.L.M. Majoie, Aad van der Lugt, H.F. Lingsma, Yvo B.W.E.M. Roos, Diederik W.J. Dippel, Jelis Boiten, Josje Brouwer, Sanne J. den Hartog, Wouter H. Hinsenveld, Manon Kappelhof, Robert-Jan B. Goldhoorn, Maxim J.H.L. Mulder, Ivo G.H. Jansen, Adriaan C.G.M. van Es, Bart J. Emmer, Jonathan M. Coutinho, Marieke J.H. Wermer, Marianne A.A. van Walderveen, Julie Staals, Sebastiaan F. de Bruijn, Lukas C. van Dijk, H. Bart van der Worp, Rob H. Lo, Ewoud J. van Dijk, Hieronymus D. Boogaarts, J. de Vries, Paul L.M. de Kort, Julia van Tuijl, Jo Jo P. Peluso, Puck Fransen, Jan S.P. van den Berg, Boudewijn A.A.M. van Hasselt, Leo A.M. Aerden, René J. Dallinga, Maarten Uyttenboogaart, Omid Eschgi, Reinoud P.H. Bokkers, Tobien H.C.M.L. Schreuder, Roel J.J. Heijboer, Koos Keizer, Lonneke S.F. Yo, Heleen M. den Hertog, Emiel J.C. Sturm, Paul Brouwers, Marieke E.S. Sprengers, Sjoerd F.M. Jenniskens, René van den Berg, Albert J. Yoo, Ludo F.M. Beenen, Alida A. Postma, Stefan D. Roosendaal, Bas F.W. van der Kallen, Ido R. van den Wijngaard, Joost Bot, Pieter-Jan van Doormaal, Anton Meijer, Elyas Ghariq, Marc P. van Proosdij, G. Menno Krietemeijer, Jo P. Peluso, Rob Lo, Dick Gerrits, Wouter Dinkelaar, Auke P.A. Appelman, Bas Hammer, Sjoert Pegge, Anouk van der Hoorn, Saman Vinke, H. Zwenneke Flach, Naziha el Ghannouti, Martin Sterrenberg, Corina Puppels, Wilma Pellikaan, Rita Sprengers, Marjan Elfrink, Michelle Simons, Marjolein Vossers, Joke de Meris, Tamara Vermeulen, Annet Geerlings, Gina van Vemde, Tiny Simons, Cathelijn van Rijswijk, Gert Messchendorp, Nynke Nicolaij, Hester Bongenaar, Karin Bodde, Sandra Kleijn, Jasmijn Lodico, Hanneke Droste, Maureen Wollaert, Sabrina Verheesen, D. Jeurrissen, Erna Bos, Yvonne Drabbe, Michelle Sandiman, Nicoline Aaldering, Berber Zweedijk, Mostafa Khalilzada, Jocova Vervoort, Eva Ponjee, Sharon Romviel, Karin Kanselaar, Denn Barning, Vicky Chalos, Ralph R. Geuskens, Tim van Straaten, Saliha Ergezen, Roger R.M. Harmsma, Daan Muijres, Anouk de Jong, Olvert A. Berkhemer, Anna M.M. Boers, J. Huguet, P.F.C. Groot, Marieke A. Mens, Katinka R. van Kranendonk, Kilian M. Treurniet, Manon L. Tolhuisen, Heitor Alves, Annick J. Weterings, Eleonora L.F. Kirkels, Eva J.H.F. Voogd, Lieve M. Schupp, Sabine Collette, Adrien E.D. Groot, Natalie E. LeCouffe, Praneeta R. Konduri, Haryadi Prasetya, Nerea Arrarte-Terreros, Lucas A. Ramos, Damage and Repair in Cancer Development and Cancer Treatment (DARE), Basic and Translational Research and Imaging Methodology Development in Groningen (BRIDGE), Clinical Neurophysiology, Radiology and Nuclear Medicine, ACS - Microcirculation, Amsterdam Neuroscience - Neurovascular Disorders, Neurology, ACS - Atherosclerosis & ischemic syndromes, MUMC+: MA Neurologie (3), Klinische Neurowetenschappen, MUMC+: Hersen en Zenuw Centrum (3), RS: Carim - B05 Cerebral small vessel disease, Beeldvorming, MUMC+: DA BV Medisch Specialisten Radiologie (9), RS: Carim - B06 Imaging, Public Health, Radiology & Nuclear Medicine, and Cardiology
Subjects: Male, SELECTION, medicine.medical_specialty, MEDLINE, ischemia, Rate ratio, THERAPY, symbols.namesake, NUMBER, medicine, Humans, Registries, Poisson regression, Endovascular treatment, Stroke, Aged, Netherlands, Aged, 80 and over, Advanced and Specialized Nursing, implementation science, business.industry, Patient Selection, Standard treatment, MECHANICAL THROMBECTOMY, Endovascular Procedures, Other Research Radboud Institute for Health Sciences [Radboudumc 0], 22/2 OA procedure, Middle Aged, medicine.disease, Disorders of movement Donders Center for Medical Neuroscience [Radboudumc 3], stroke, brain ischemia, Clinical trial, Treatment Outcome, Clinical research, INTRAVENOUS T-PA, thrombectomy, Emergency medicine, ONSET, symbols, Female, TRIAL, Neurology (clinical), Cardiology and Cardiovascular Medicine, business, Rare cancers Radboud Institute for Health Sciences [Radboudumc 9]
Abstract: Contains fulltext : 220823.pdf (Publisher’s version ) (Closed access) Before 2015, endovascular treatment (EVT) for acute ischemic stroke was considered a promising treatment option. Based on limited evidence, it was performed in several dedicated stroke centers worldwide on selected patients. Since 2015, EVT for patients with intracranial large vessel occlusion has quickly been implemented as standard treatment in many countries worldwide, supported by the revised international guidelines based on solid evidence from multiple clinical trials. We describe the development in use of EVT in the Netherlands before, during, and after the pivotal EVT trials. We used data from all patients who were treated with EVT in the Netherlands from January 2002 until December 2018. We undertook a time-series analysis to examine trends in the use of EVT using Poisson regression analysis. Incidence rate ratios per year with 95% CIs were obtained to demonstrate the impact and implementation after the publication of the EVT trial results. We made regional observation plots, adjusted for stroke incidence, to assess the availability and use of the treatment in the country. In the buildup to the MR CLEAN (Multicenter Clinical Trial of Endovascular Treatment of Acute Ischemic Stroke in the Netherlands), a slow increase of EVT patients was observed, with 0.2% of all ischemic stroke patients receiving EVT. Before the trial results were formally announced, a statistically significant increase in EVT-treated patients per year was observed (incidence rate ratio, 1.72 [95% CI, 1.46-2.04]), and after the trial publication, an immediate steep increase was seen, followed by a more gradual increase (incidence rate ratio, 2.14 [95% CI, 1.77-2.59]). In 2018, the percentage of ischemic stroke patients receiving EVT increased to 5.8%. A well-developed infrastructure, a pragmatic approach toward the use of EVT in clinical practice, in combination with a strict adherence by the regulatory authorities to national evidence-based guidelines has led to successful implementation of EVT in the Netherlands. Ongoing efforts are directed at further increasing the proportion of stroke patients with EVT in all regions of the country.
Published: 2020

24. Endovascular treatment in anterior circulation stroke beyond 6.5 hours after onset or time last seen well: results from the MR CLEAN Registry

Author: Robert J van Oostenbrugge, Wim H van Zwam, Maarten Uyttenboogaart, Yvo B W E M Roos, Jeannette Hofmeijer, Jasper M Martens, Ivo G H Jansen, Ludo F M Beenen, Hester F Lingsma, Albert J Yoo, Diederik W J Dippel, Charles B L M Majoie, Olvert A Berkhemer, Bart J Emmer, Marianne A A van Walderveen, Sjoerd F M Jenniskens, Wouter J Schonewille, Jan Albert Vos, Julie Staals, Geert J Lycklama à nijeholt, Jelis Boiten, Rob H Lo, Ewoud J Van Dijk, René J Dallinga, Koos Keizer, Heleen M Den Hertog, Katinka R van Kranendonk, Kilian M Treurniet, Esmee Venema, Bob Roozenbeek, Robin Lemmens, Robert-Jan B Goldhoorn, Ido R van den Wijngaard, Jonathan M Coutinho, Stefan D Roosendaal, Joost Bot, Naziha El Ghannouti, Martin Sterrenberg, Wilma Pellikaan, Rita Sprengers, Marjan Elfrink, Joke de Meris, Tamara Vermeulen, Annet Geerlings, Gina van Vemde, Tiny Simons, Gert Messchendorp, Hester Bongenaar, Karin Bodde, Sandra Kleijn, Jasmijn Lodico, D Jeurrissen, Erna Bos, Yvonne Drabbe, Berber Zweedijk, Daan Muijres, J Huguet, Marieke A Mens, Manon Kappelhof, Heitor Alves, Manon L Tolhuisen, Alida A Postma, Reinoud P H Bokkers, Maxim J H L Mulder, Kars C J Compagne, Josje Brouwer, Wouter H Hinsenveld, Marieke J H Wermer, J de Vries, Julia van Tuijl, Jo P Peluso, Puck Fransen, Leo A M Aerden, Omid Eschgi, Tobien H C M L Schreuder, Roel J J Heijboer, Lonneke S F Yo, Emiel J C Sturm, Paul J A M Brouwers, Marieke E S Sprengers, René van den Berg, Pieter-Jan van Doormaal, Anton Meijer, Elyas Ghariq, Dick Gerrits, Wouter Dinkelaar, Auke P A Appelman, Bas Hammer, Sjoert Pegge, Anouk van der Hoorn, Saman Vinke, Michelle Simons, Marjolein Vossers, Nynke Nicolaij, Hanneke Droste, Maureen Wollaert, Sabrina Verheesen, Michelle Sandiman, Nicoline Aaldering, Jocova Vervoort, Eva Ponjee, Sharon Romviel, Annick J Weterings, Lieve M Schupp, Sabine Collette, Natalie E LeCouffe, Praneeta R Konduri, Haryadi Prasetya, Nerea Arrarte-Terreros, Lucas A Ramos, C Lukas, Luuk Dekker, F Anne V Pirson, Adriaan C G M van Es, Sanne J den Hartog, Sebastiaan F de Bruijnl, H van Dijk, Bart van der Worp, D Boogaarts Hieronymus, Paul L M de Kort, Jan S P van den Berg, Boudewijn A A M van Hasselt, Bas F W van der Kallen, P Marc, G van Proosdij;, Menno Krietemeijer, Roger R M Harmsma, M M Anna Boers, P F C Groot, Eleonora L F Kirkels, Eva J H F Voogd, and Adrien E D Groot
Subjects: Neurology. Diseases of the nervous system, RC346-429
Abstract: Background Randomised controlled trials with perfusion selection have shown benefit of endovascular treatment (EVT) for ischaemic stroke between 6 and 24 hours after symptom onset or time last seen well. However, outcomes after EVT in these late window patients without perfusion imaging are largely unknown. We assessed their characteristics and outcomes in routine clinical practice.Methods The Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands Registry, a prospective, multicentre study in the Netherlands, included patients with an anterior circulation occlusion who underwent EVT between 2014 and 2017. CT perfusion was no standard imaging modality. We used adjusted ordinal logistic regression analysis to compare patients treated within versus beyond 6.5 hours after propensity score matching on age, prestroke modified Rankin Scale (mRS), National Institutes of Health Stroke Scale, Alberta Stroke Programme Early CT Score (ASPECTS), collateral status, location of occlusion and treatment with intravenous thrombolysis. Outcomes included 3-month mRS score, functional independence (defined as mRS 0–2), and death.Results Of 3264 patients who underwent EVT, 106 (3.2%) were treated beyond 6.5 hours (median 8.5, IQR 6.9–10.6), of whom 93 (87.7%) had unknown time of stroke onset. CT perfusion was not performed in 87/106 (80.2%) late window patients. Late window patients were younger (mean 67 vs 70 years, p
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24 results on '"Sanne J. den Hartog"'

1. Standardized mortality ratios for regionalized acute cardiovascular care

2. Validity of Early Outcomes as Indicators for Comparing Hospitals on Quality of Stroke Care

3. Performance feedback on the quality of care in hospitals performing thrombectomy for ischemic stroke (PERFEQTOS): protocol of a stepped wedge cluster randomized trial

4. Value of Thrombus Imaging Characteristics as a Guide for First‐Line Endovascular Thrombectomy Device in Patients With Acute Ischemic Stroke

5. Thrombus Imaging Characteristics and Outcomes in Posterior Circulation Stroke Patients Treated With EVT

6. Association of Ischemic Core Imaging Biomarkers With Post-Thrombectomy Clinical Outcomes in the MR CLEAN Registry

7. Hospital Variation in Time to Endovascular Treatment for Ischemic Stroke: What Is the Optimal Target for Improvement?

8. Effect of First‐Pass Reperfusion on Outcome After Endovascular Treatment for Ischemic Stroke

9. Deep-Learning-Based Thrombus Localization and Segmentation in Patients with Posterior Circulation Stroke

10. Influence of the interventionist's experience on outcomes of endovascular thrombectomy in acute ischemic stroke: results from the MR CLEAN Registry

11. Endovascular Treatment for Posterior Circulation Stroke in Routine Clinical Practice: Results of the Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands Registry

12. Prognostic Value of Thrombus Volume and Interaction With First-Line Endovascular Treatment Device Choice

13. Prediction of Outcome and Endovascular Treatment Benefit Validation and Update of the MR PREDICTS Decision Tool

14. Determinants of Symptomatic Intracranial Hemorrhage After Endovascular Stroke Treatment: A Retrospective Cohort Study

15. Etiology of Large Vessel Occlusion Posterior Circulation Stroke: Results of the MR CLEAN Registry

16. Patient-Reported Experience Measures in Stroke Care

17. Pathology-proven extradural ('distant') metastases of gliomas in adults in the Netherlands between 1971 and 2018

18. Improvements in endovascular treatment for acute ischemic stroke

19. White matter lesions and outcomes after endovascular treatment for acute ischemic stroke MR CLEAN registry results

20. Endovascular treatment in anterior circulation stroke beyond 6.5 hours after onset or time last seen well: results from the MR CLEAN Registry

21. Effect of first pass reperfusion on outcome in patients with posterior circulation ischemic stroke

22. Importance of Occlusion Site for Thrombectomy Technique in Stroke: Comparison Between Aspiration and Stent Retriever

23. Path from clinical research to implementation endovascular treatment of ischemic stroke in the Netherlands

24. Endovascular treatment in anterior circulation stroke beyond 6.5 hours after onset or time last seen well: results from the MR CLEAN Registry

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