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Safety and efficacy of edaravone combined with alteplase for patients with acute ischemic stroke: A systematic review and meta-analysis.

Early administration of edaravone for acute ischemic stroke patients (AIS) receiving intravenous thrombolysis (IVT) has a potential neuroprotective effect. This study aimed to estimate the safety and efficacy of edaravone for AIS patients receiving IVT. We searched PubMed, Embase, Cochrane Library and Chinese Databases (CNKI database, Weipu database, and Wanfang database) for randomized controlled trials (RCT) from the inception of the database to 20 July 2020. Efficacy outcome was reduced National Institutes of Health Stroke Scale (NIHSS) score before and after treatment. Safety outcomes were intracranial hemorrhage (ICH) and mortality. Review Manager 5.3 and Stata 14.0 was used to perform the meta-analysis. A total of 1877 AIS patients from 17 studies were included, 939 (50.03%) patients received edaravone combined with alteplase treatment. Compared with alteplase alone, combined treatment reduced the NIHSS score (MD=3.95,95% CI 2.92-4.99, I² = 92%) and ICH (OR=0.44,95% CI 0.29-0.66, I² =0%) during hospitalization. There was no significant association between combined treatment and mortality during follow-up (OR=0.43,95% CI 0.13-1.42, I² =0%). Conclusions: Edaravone combined with alteplase seems to be safe and effective for AIS patients' short term outcomes.