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1. International controlled study of revascularization and outcomes following COVID‐positive mechanical thrombectomy

Author

Dmytriw, Adam A, Ghozy, Sherief, Sweid, Ahmad, Piotin, Michel, Bekelis, Kimon, Sourour, Nader, Raz, Eytan, Vela‐Duarte, Daniel, Linfante, Italo, Dabus, Guilherme, Kole, Max, Martínez‐Galdámez, Mario, Nimjee, Shahid M, Lopes, Demetrius K, Hassan, Ameer E, Kan, Peter, Ghorbani, Mohammad, Levitt, Michael R, Escalard, Simon, Missios, Symeon, Shapiro, Maksim, Clarençon, Fréderic, Elhorany, Mahmoud, Tahir, Rizwan A, Youssef, Patrick P, Pandey, Aditya S, Starke, Robert M, Naamani, Kareem El, Abbas, Rawad, Mansour, Ossama Y, Galvan, Jorge, Billingsley, Joshua T, Mortazavi, Abolghasem, Walker, Melanie, Dibas, Mahmoud, Settecase, Fabio, Heran, Manraj KS, Kuhn, Anna L, Puri, Ajit S, Menon, Bijoy K, Sivakumar, Sanjeev, Mowla, Ashkan, D'Amato, Salvatore, Zha, Alicia M, Cooke, Daniel, Vranic, Justin E, Regenhardt, Robert W, Rabinov, James D, Stapleton, Christopher J, Goyal, Mayank, Wu, Hannah, Cohen, Jake, Turkel‐Parella, David, Xavier, Andrew, Waqas, Muhammad, Tutino, Vincent, Siddiqui, Adnan, Gupta, Gaurav, Nanda, Anil, Khandelwal, Priyank, Tiu, Cristina, Portela, Pere C, de la Ossa, Natalia Perez, Urra, Xabier, Lera, Mercedes, Arenillas, Juan F, Ribo, Marc, Requena, Manuel, Piano, Mariangela, Pero, Guglielmo, Sousa, Keith, Al‐Mufti, Fawaz, Hashim, Zafar, Nayak, Sanjeev, Renieri, Leonardo, Du, Rose, Aziz‐Sultan, Mohamed A, Liebeskind, David, Nogueira, Raul G, Abdalkader, Mohamad, Nguyen, Thanh N, Vigilante, Nicholas, Siegler, James E, Grossberg, Jonathan A, Saad, Hassan, Gooch, Michael R, Herial, Nabeel A, Rosenwasser, Robert H, Tjoumakaris, Stavropoula, Patel, Aman B, Tiwari, Ambooj, Jabbour, Pascal, and Investigators, North American Neurovascular COVID‐19 Consortium Society of Vascular and Interventional Neurology

Subjects
Biomedical and Clinical Sciences, Neurosciences, Clinical Sciences, Stroke, Clinical Research, Good Health and Well Being, Brain Ischemia, COVID-19, Cross-Sectional Studies, Endovascular Procedures, Humans, Male, Retrospective Studies, Thrombectomy, Treatment Outcome, large vessel occlusion, morbidity, mortality, stroke, North American Neurovascular COVID-19 (NAN-C) Consortium &amp, Society of Vascular and Interventional Neurology (SVIN) Investigators, Neurology & Neurosurgery, Clinical sciences
Abstract

Background and purposePrevious studies suggest that mechanisms and outcomes in patients with COVID-19-associated stroke differ from those in patients with non-COVID-19-associated strokes, but there is limited comparative evidence focusing on these populations. The aim of this study, therefore, was to determine if a significant association exists between COVID-19 status with revascularization and functional outcomes following thrombectomy for large vessel occlusion (LVO), after adjustment for potential confounding factors.MethodsA cross-sectional, international multicenter retrospective study was conducted in consecutively admitted COVID-19 patients with concomitant acute LVO, compared to a control group without COVID-19. Data collected included age, gender, comorbidities, clinical characteristics, details of the involved vessels, procedural technique, and various outcomes. A multivariable-adjusted analysis was conducted.ResultsIn this cohort of 697 patients with acute LVO, 302 had COVID-19 while 395 patients did not. There was a significant difference (p

Published
2022

2. Age and Acute Ischemic Stroke Outcome in North American Patients With COVID‐19

Author

Dmytriw, Adam A, Dibas, Mahmoud, Schirmer, Clemens M, Settecase, Fabio, Heran, Manraj KS, Efendizade, Aslan, Kühn, Anna Luisa, Puri, Ajit S, Ospel, Johanna, Menon, Bijoy, Sivakumar, Sanjeev, Mowla, Ashkan, Vela‐Duarte, Daniel, Linfante, Italo, Dabus, Guilherme, Regenhardt, Robert W, Patel, Aman B, Leslie‐Mazwi, Thabele, D’Amato, Salvatore, Rosenthal, Joseph, Zha, Alicia, Talukder, Nafee, Sheth, Sunil, Cooke, Daniel, Leung, Lester Y, Malek, Adel, Voetsch, Barbara, Sehgal, Siddharth, Wakhloo, Ajay K, Wu, Hannah, Cohen, Jake, Turkel‐Parella, David, Xavier, Andrew, Tiwari, Ambooj, and Consortium, the North American Neurovascular COVID‐19

Subjects
Clinical Research, Brain Disorders, Stroke, Rehabilitation, Good Health and Well Being, Adult, Age Factors, Aged, Aged, 80 and over, COVID-19, Canada, Female, Humans, Ischemic Stroke, Male, Middle Aged, Prospective Studies, United States, acute ischemic stroke, age outcomes, COVID-19 pandemic, SARS-CoV-2, North American Neurovascular COVID‐19 (NAN‐C) Consortium, COVID‐19 pandemic, SARS‐CoV‐2, Cardiorespiratory Medicine and Haematology
Abstract

Background Acute ischemic stroke (AIS) in the context of COVID-19 has received considerable attention for its propensity to affect patients of all ages. We aimed to evaluate the effect of age on functional outcome and mortality following an acute ischemic event. Methods and Results A prospectively maintained database from comprehensive stroke centers in Canada and the United States was analyzed for patients with AIS from March 14 to September 30, 2020 who tested positive for SARS-CoV-2. The primary outcome was Modified Rankin Scale score at discharge, and the secondary outcome was mortality. Baseline characteristics, laboratory values, imaging, and thrombectomy workflow process times were assessed. Among all 126 patients with COVID-19 who were diagnosed with AIS, the median age was 63 years (range, 27-94). There were 35 (27.8%) patients with AIS in the aged ≤55 years group, 47 (37.3%) in the aged 56 to 70 group, and 44 (34.9%) in the aged >70 group. Intravenous tissue plasminogen activator and thrombectomy rates were comparable across these groups, (P=0.331 and 0.212, respectively). There was a significantly lower rate of mortality between each group favoring younger age (21.9% versus 45.0% versus 48.8%, P=0.047). After multivariable adjustment for possible confounders, a 1-year increase in age was significantly associated with fewer instances of a favorable outcome of Modified Rankin Scale 0 to 2 (odds ratio [OR], 0.95; 95 CI%, 0.90-0.99; P=0.048) and higher mortality (OR, 1.06; 95 CI%, 1.02-1.10; P=0.007). Conclusions AIS in the context of COVID-19 affects young patients at much greater rates than pre-pandemic controls. Nevertheless, instances of poor functional outcome and mortality are closely tied to increasing age.

Published
2021

3. International controlled study of revascularization and outcomes following COVID-positive mechanical thrombectomy

Author

North American Neurovascular COVID-19 (NAN-C) Consortium &amp, Dmytriw, Adam A, Ghozy, Sherief, Sweid, Ahmad, Piotin, Michel, Bekelis, Kimon, Sourour, Nader, Raz, Eytan, Vela-Duarte, Daniel, Linfante, Italo, Dabus, Guilherme, Kole, Max, Martínez-Galdámez, Mario, Nimjee, Shahid M, Lopes, Demetrius K, Hassan, Ameer E, Kan, Peter, Ghorbani, Mohammad, Levitt, Michael R, Escalard, Simon, Missios, Symeon, Shapiro, Maksim, Clarençon, Fréderic, Elhorany, Mahmoud, Tahir, Rizwan A, Youssef, Patrick P, Pandey, Aditya S, Starke, Robert M, El Naamani, Kareem, Abbas, Rawad, Mansour, Ossama Y, Galvan, Jorge, Billingsley, Joshua T, Mortazavi, Abolghasem, Walker, Melanie, Dibas, Mahmoud, Settecase, Fabio, Heran, Manraj KS, Kuhn, Anna L, Puri, Ajit S, Menon, Bijoy K, Sivakumar, Sanjeev, Mowla, Ashkan, D'Amato, Salvatore, Zha, Alicia M, Cooke, Daniel, Vranic, Justin E, Regenhardt, Robert W, Rabinov, James D, Stapleton, Christopher J, Goyal, Mayank, Wu, Hannah, Cohen, Jake, Turkel-Parella, David, Xavier, Andrew, Waqas, Muhammad, Tutino, Vincent, Siddiqui, Adnan, Gupta, Gaurav, Nanda, Anil, Khandelwal, Priyank, Tiu, Cristina, Portela, Pere C, Perez de la Ossa, Natalia, Urra, Xabier, de Lera, Mercedes, Arenillas, Juan F, Ribo, Marc, Requena, Manuel, Piano, Mariangela, Pero, Guglielmo, De Sousa, Keith, Al-Mufti, Fawaz, Hashim, Zafar, Nayak, Sanjeev, Renieri, Leonardo, Du, Rose, Aziz-Sultan, Mohamed A, Liebeskind, David, Nogueira, Raul G, Abdalkader, Mohamad, Nguyen, Thanh N, Vigilante, Nicholas, Siegler, James E, Grossberg, Jonathan A, Saad, Hassan, Gooch, Michael R, Herial, Nabeel A, Rosenwasser, Robert H, Tjoumakaris, Stavropoula, Patel, Aman B, Tiwari, Ambooj, and Jabbour, Pascal

Subjects
North American Neurovascular COVID-19 (NAN-C) Consortium &amp, Male, Neurology & Neurosurgery, Endovascular Procedures, Clinical Sciences, Neurosciences, COVID-19, morbidity, mortality, stroke, Society of Vascular and Interventional Neurology (SVIN) Investigators, Brain Ischemia, Treatment Outcome, Cross-Sectional Studies, Good Health and Well Being, Clinical Research, large vessel occlusion, Humans, Thrombectomy, Retrospective Studies
Abstract

Background and purposePrevious studies suggest that mechanisms and outcomes in patients with COVID-19-associated stroke differ from those in patients with non-COVID-19-associated strokes, but there is limited comparative evidence focusing on these populations. The aim of this study, therefore, was to determine if a significant association exists between COVID-19 status with revascularization and functional outcomes following thrombectomy for large vessel occlusion (LVO), after adjustment for potential confounding factors.MethodsA cross-sectional, international multicenter retrospective study was conducted in consecutively admitted COVID-19 patients with concomitant acute LVO, compared to a control group without COVID-19. Data collected included age, gender, comorbidities, clinical characteristics, details of the involved vessels, procedural technique, and various outcomes. A multivariable-adjusted analysis was conducted.ResultsIn this cohort of 697 patients with acute LVO, 302 had COVID-19 while 395 patients did not. There was a significant difference (p

Published
2022

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