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Endovascular therapy for acute ischemic stroke with distal medium vessel occlusion: a systematic review and meta-analysis
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Endovascular therapy for acute ischemic stroke with distal medium vessel occlusion: a systematic review and meta-analysis
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Journal Article
Endovascular therapy for acute ischemic stroke with distal medium vessel occlusion: a systematic review and meta-analysis
2023
Overview
AimsEndovascular therapy (EVT) for distal medium vessel occlusions (DMVOs) is a potential frontier of acute ischemic stroke (AIS) treatment, but its efficacy against best medical therapy (BMT) remains unknown. We performed a systematic review and meta-analysis evaluating the efficacy and safety of EVT versus BMT in primary DMVO.MethodsWe systematically searched PubMed, Cochrane Library and Embase, from inception to August 14, 2022, for studies comparing EVT with BMT in DMVO-AIS. We adopted the Distal Thrombectomy Summit Group’s definition of DMVO. Efficacy outcomes were functional independence (90-day modified Rankin Scale (mRS) 0–2) and excellent functional outcomes (90-day mRS 0–1). Safety outcomes were symptomatic intracranial hemorrhage (sICH) and 90-day mortality.ResultsFourteen observational and two randomized-controlled studies were included, with 1202 patients receiving EVT and 1267 receiving BMT. After trim-and-fill correction, EVT achieved significantly better odds of functional independence than BMT (adjusted OR 1.61, 95% CI 1.06 to 2.43). There were no significant differences in overall excellent functional outcomes (OR 1.23, 95% CI 0.88 to 1.71), sICH (OR 1.44, 95% CI 0.78 to 2.66), and mortality (OR 1.03, 95% CI 0.73 to 1.45). Stratified by EVT method, mechanical thrombectomy±intra-arterial thrombolysis achieved more excellent functional outcomes than BMT (OR 1.59, 95% CI 1.13 to 2.23). In mild strokes (National Institutes of Health Stroke Scale score <6), EVT caused significantly more sICH (OR 6.30, 95% CI 1.55 to 25.64).ConclusionsEVT shows promising efficacy benefit over BMT for primary DMVO-AIS. Further randomized controlled trials are necessary to evaluate the efficacy and safety of EVT in DMVO-AIS.
Publisher
BMJ Publishing Group Ltd,BMJ Publishing Group LTD
Subject
