• Yimo Feng and Hai Chen.
• Department of Neurosurgery, Chongqing General Hospital, University of Chinese Academy of Sciences.China.
• Am J Emerg Med. 2021 Dec 1; 50: 748752748-752.

BackgroundThe efficacy of tranexamic acid for subarachnoid hemorrhage remains controversial. Thus, we conduct this meta-analysis to explore the efficacy of tranexamic acid for subarachnoid hemorrhage.MethodsPubMed, EMbase, Web of science, EBSCO, and Cochrane library databases were systematically searched. Randomized controlled trials (RCTs) assessing the effect of tranexamic acid on subarachnoid hemorrhage were included. Two investigators independently searched articles, extracted data, and assessed the quality of included studies. This meta-analysis was performed using the random-effect model.ResultsFive RCTs and 2359 patients were included in the meta-analysis. Overall, compared with control intervention for subarachnoid hemorrhage, tranexamic acid was associated with significantly reduced risk of rebleeding (Odd ratio [OR] =0.62; 95% confidence interval [CI] =0.41 to 0.93; P = 0.02), but had no influence on mortality (OR = 0.94; 95% CI = 0.75 to 1.18; P = 0.61), poor outcome (OR = 0.95; 95% CI = 0.61 to 1.48; P = 0.82), hydrocephalus (OR = 1.17; 95% CI = 0.94 to 1.46; P = 0.17) or delayed cerebral ischemia (OR = 1.26; 95% CI = 0.78 to 2.04; P = 0.34).ConclusionsTranexamic acid may be effective to reduce the risk of rebleeding in patients with subarachnoid hemorrhage.Copyright © 2021. Published by Elsevier Inc.

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