Abstract
Recently, several randomized controlled trials (RCTs) about direct mechanical thrombectomy (d-MT) vs. intravenous thrombolysis before MT (IVT + MT) for acute ischemic stroke (AIS) patients have been reported. This study aims to investigate the differences in efficacy and safety of MT with or without IVT for the treatment of patients with AIS. MEDLINE, EMBASE, Cochrane Library and Clinicaltrials.gov from March 2011 to February 2021 were systematically searched for studies comparing the two strategies directly. Review Manager 5.3 software was used to assess the risk of bias and pool the data with a random effect model. We pooled 1633 patients from 4 RCTs. The primary outcome, proportion of patients achieving functional independence (mRS0-2) at 90days, was not significantly different between the two groups (MT 46.02% vs. IVT + MT 45.47%, OR 1.02; 95% CI 0.84-1.25). However, the risk of developing any ICH was lower in the d-MT group (RR 0.75; 95% CI 0.63-0.89). In addition, the remaining secondary outcomes, such as successful reperfusion (eTICI scale, 2b-3) at final angiogram (OR 0.80; 95% CI, 0.62-1.03) and mortality at 90days (RR 1.06; 95% CI 0.85-1.31), did not differ between the groups. Outcomes were similar for d-MT and IVT + MT, with d-MT having a lower risk of any ICH. We need to focus on precision medicine in the future. URL: http://inplasy.com ; Unique identifier: INPLASY202130094.
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