• Qun-Long Jiang, Pei-Jian Wang, Hui-Xin Liu, Li-Li Huang, and Xiao-Kui Kang.
• Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng, Shandong, R.P. China.
• World Neurosurg. 2020 Mar 1; 135: e598e609e598-e609.

BackgroundDual and single antiplatelet therapies are routinely used in carotid artery endarterectomy (CEA). However, the efficacy and safety of these therapies are controversial. The present study aimed to comprehensively compare the clinical outcomes between dual and single antiplatelet therapies in CEA.MethodsThis study retrieved available academic studies evaluating the complications related to antiplatelet therapy between dual and single antiplatelet therapies in CEA from the databases of ScienceDirect, the Cochrane Library, EMBASE, and PubMed. References to previous reviews and related clinical trials were manually checked to retrieve potential literature that was not included in our electronic search results.ResultsA total of 10 articles (1 randomized controlled trial, 9 non-randomized controlled trials) were included in the study. The overall number of patients in the dual antiplatelet group was 14,280, and the number of patients in the single antiplatelet group was 125,850. The results revealed that the single antiplatelet group had a lower incidence of 30-day death (rate difference [RD] 0.002; 95% confidence interval [CI] 0.000-0.003; P = 0.014), neck hematoma (odds ratio [OR] 2.120; 95% CI 1.431-3.142; P < 0.001), myocardial infarction (RD 0.004; 95% CI 0.001-0.007; P = 0.003), and major bleeding (RD 0.005; 95% CI 0.002-0.008; P < 0.001). Meanwhile, the single antiplatelet group was associated with a shorter operation time (weighted mean difference 4.000; 95% CI= 2.564-5.436; P < 0.001). However, there was no significant difference in the rate of postoperative transient ischemic attack (P = 0.215), stroke (P = 0.130), or length of stay (P = 0.563).ConclusionsBased on current evidence, using single antiplatelet therapy in CEA may reduce operation time and the incidences of 30-day death, neck hematoma, major bleeding, and myocardial infarction without increasing the risks of transient ischemic attack, stroke, or a longer operation time.Copyright © 2019 Elsevier Inc. All rights reserved.

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