Revascularization Therapies for Ischemic Stroke and Association With Risk of Epilepsy: A Danish Nationwide Register‐Based Study

Background The association between stroke revascularization therapies and poststroke epilepsy is only sparsely investigated, and results are conflicting. The aim of this study is to investigate whether stroke revascularization therapies are associated with different risks of poststroke epilepsy. Met...

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Main Authors: Mads Qvist Buur Ebbesen, Julie Werenberg Dreier, Kasper Lolk, Grethe Andersen, Søren Paaske Johnsen, Johan Zelano, Jakob Christensen
Format: Article
Language:English
Published: Wiley 2024-08-01
Series:Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
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Online Access:https://www.ahajournals.org/doi/10.1161/JAHA.124.034279
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author Mads Qvist Buur Ebbesen
Julie Werenberg Dreier
Kasper Lolk
Grethe Andersen
Søren Paaske Johnsen
Johan Zelano
Jakob Christensen
author_facet Mads Qvist Buur Ebbesen
Julie Werenberg Dreier
Kasper Lolk
Grethe Andersen
Søren Paaske Johnsen
Johan Zelano
Jakob Christensen
author_sort Mads Qvist Buur Ebbesen
collection DOAJ
description Background The association between stroke revascularization therapies and poststroke epilepsy is only sparsely investigated, and results are conflicting. The aim of this study is to investigate whether stroke revascularization therapies are associated with different risks of poststroke epilepsy. Methods and Results We conducted a nationwide, register‐based, propensity score–matched cohort study. We identified 40 816 patients admitted with a first ischemic stroke and no prior history of epilepsy in Denmark between January 1, 2011, and December 16, 2018. Of these, 6541 were treated with thrombolysis, 379 with thrombectomy, and 1005 with both thrombolysis and thrombectomy. The 3 treatment groups were each matched 1:1 to patients with stroke not treated with revascularization. Exact matching was done for sex, while propensity scores included information on stroke severity, cortical involvement, age, comorbidities, and socioeconomic parameters. Outcome was any diagnosis of epilepsy. We used Cox regressions to estimate adjusted hazard ratios (HRs) of epilepsy after ischemic stroke. Compared with matched patients with ischemic stroke not receiving revascularization treatment, patients who received thrombolysis alone had 32% lower risk of epilepsy (adjusted HR, 0.68 [95% CI, 0.57–0.81]) and patients who received thrombolysis and thrombectomy had 45% lower risk of epilepsy (adjusted HR, 0.55 [95% CI, 0.41–0.73]). Thrombectomy alone was not associated with significantly lower risk of epilepsy compared with matched patients with ischemic stroke not receiving revascularization therapy (adjusted HR, 0.78 [95% CI, 0.57–1.29]). Conclusions Thrombolysis alone and in combination with thrombectomy in ischemic stroke was associated with lower risk of epilepsy, whereas thrombectomy alone was not associated with lower risk of epilepsy.
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spelling doaj-art-3b52ceac43b140d382cfee3ac28711132025-08-20T03:10:31ZengWileyJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease2047-99802024-08-01131510.1161/JAHA.124.034279Revascularization Therapies for Ischemic Stroke and Association With Risk of Epilepsy: A Danish Nationwide Register‐Based StudyMads Qvist Buur Ebbesen0Julie Werenberg Dreier1Kasper Lolk2Grethe Andersen3Søren Paaske Johnsen4Johan Zelano5Jakob Christensen6Department of Neurology Aarhus University Hospital, Affiliated Member of the European Reference Network EpiCARE Aarhus DenmarkNational Centre for Register‐based Research Aarhus University Aarhus DenmarkNational Centre for Register‐based Research Aarhus University Aarhus DenmarkDepartment of Neurology Aarhus University Hospital, Affiliated Member of the European Reference Network EpiCARE Aarhus DenmarkDepartment of Clinical Medicine, Danish Center for Health Services Research Aalborg University Aalborg DenmarkDepartment of Clinical Neuroscience Sahlgrenska Academy, University of Gothenburg Gothenburg SwedenDepartment of Neurology Aarhus University Hospital, Affiliated Member of the European Reference Network EpiCARE Aarhus DenmarkBackground The association between stroke revascularization therapies and poststroke epilepsy is only sparsely investigated, and results are conflicting. The aim of this study is to investigate whether stroke revascularization therapies are associated with different risks of poststroke epilepsy. Methods and Results We conducted a nationwide, register‐based, propensity score–matched cohort study. We identified 40 816 patients admitted with a first ischemic stroke and no prior history of epilepsy in Denmark between January 1, 2011, and December 16, 2018. Of these, 6541 were treated with thrombolysis, 379 with thrombectomy, and 1005 with both thrombolysis and thrombectomy. The 3 treatment groups were each matched 1:1 to patients with stroke not treated with revascularization. Exact matching was done for sex, while propensity scores included information on stroke severity, cortical involvement, age, comorbidities, and socioeconomic parameters. Outcome was any diagnosis of epilepsy. We used Cox regressions to estimate adjusted hazard ratios (HRs) of epilepsy after ischemic stroke. Compared with matched patients with ischemic stroke not receiving revascularization treatment, patients who received thrombolysis alone had 32% lower risk of epilepsy (adjusted HR, 0.68 [95% CI, 0.57–0.81]) and patients who received thrombolysis and thrombectomy had 45% lower risk of epilepsy (adjusted HR, 0.55 [95% CI, 0.41–0.73]). Thrombectomy alone was not associated with significantly lower risk of epilepsy compared with matched patients with ischemic stroke not receiving revascularization therapy (adjusted HR, 0.78 [95% CI, 0.57–1.29]). Conclusions Thrombolysis alone and in combination with thrombectomy in ischemic stroke was associated with lower risk of epilepsy, whereas thrombectomy alone was not associated with lower risk of epilepsy.https://www.ahajournals.org/doi/10.1161/JAHA.124.034279epilepsyrevascularizationstroke
spellingShingle Mads Qvist Buur Ebbesen
Julie Werenberg Dreier
Kasper Lolk
Grethe Andersen
Søren Paaske Johnsen
Johan Zelano
Jakob Christensen
Revascularization Therapies for Ischemic Stroke and Association With Risk of Epilepsy: A Danish Nationwide Register‐Based Study
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
epilepsy
revascularization
stroke
title Revascularization Therapies for Ischemic Stroke and Association With Risk of Epilepsy: A Danish Nationwide Register‐Based Study
title_full Revascularization Therapies for Ischemic Stroke and Association With Risk of Epilepsy: A Danish Nationwide Register‐Based Study
title_fullStr Revascularization Therapies for Ischemic Stroke and Association With Risk of Epilepsy: A Danish Nationwide Register‐Based Study
title_full_unstemmed Revascularization Therapies for Ischemic Stroke and Association With Risk of Epilepsy: A Danish Nationwide Register‐Based Study
title_short Revascularization Therapies for Ischemic Stroke and Association With Risk of Epilepsy: A Danish Nationwide Register‐Based Study
title_sort revascularization therapies for ischemic stroke and association with risk of epilepsy a danish nationwide register based study
topic epilepsy
revascularization
stroke
url https://www.ahajournals.org/doi/10.1161/JAHA.124.034279
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