• Yan Ou, Malong Feng, Bingqing Hu, and Yishan Dong.
• Emergency Department of PLA Army Specialty Medical Center.
• Medicine (Baltimore). 2022 Aug 5; 101 (31): e27401e27401.

BackgroundThe efficacy of alfentanil supplementation for the sedation of bronchoscopy remains controversial. We conduct a systematic review and meta-analysis to explore the influence of alfentanil supplementation on the sedation during bronchoscopy.MethodsWe search PubMed, EMbase, Web of science, EBSCO, and Cochrane library databases through December 2019 for randomized controlled trials (RCTs) assessing the effect of alfentanil supplementation versus placebo for the sedation during bronchoscopy. This meta-analysis is performed using the random-effect model.ResultsFive RCTs are included in the meta-analysis. Overall, compared with control group for bronchoscopy, alfentanyl supplementation is associated with significantly reduced coughing scores (Std. MD = -0.55; 95% CI = -0.96 to -0.14; P = 0.009) and dose of propofol (Std. MD = -0.34; 95% CI = -0.64 to -0.04; P = 0.03), but reveals the increase in hypoxemia (RR = 1.56; 95% CI = 1.17 to 2.08; P = 0.002).ConclusionsAlfentanyl supplementation benefits to reduce coughing scores and dose of propofol for bronchoscopy, but increases the incidence of hypoxemia. The use of alfentanyl supplementation for bronchoscopy should be with caution.Copyright © 2022 the Author(s). Published by Wolters Kluwer Health, Inc.

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