Abstract:Objective The efficacy evaluation of the endoscopic retrograde appendicitis therapy (ERAT) in the treatment of acute appendicitis.Methods We searched and got the literatures through computer retrieval from CNKI database, Wanfang database, PubMed and Google Academics from 2017 to 2020. Then adopted the Review Manager 5.3.5 software to do the statistical processing, analyze heterogeneity of the literatures, and calculate the OR^ value and its 95%CI.Results According to the inclusion criteria, 33 clinical trials and the involved 2 729 patients were included. Meta-analysis showed that, the length of hospital stay (MD = -2.81, 95%CI: -3.28 ~ -2.34) and operation time (MD = -20.24, 95%CI:-22.63 ~ -17.85) in ERAT group were significantly shorter than those in traditional surgery group, and the total incidence of complications were significantly lower than that in traditional group (OR^ = 0.19, 95%CI: 0.13~0.26), the body temperature recovery was significantly faster than that in traditional surgery group (MD = -1.03, 95%CI: -1.41 ~ -0.65).Conclusion ERAT is a safe and effective treatment for acute appendicitis, it can effectively shorten the operation time and hospitalization time, reduce the incidence of complications, and has significant value of clinical promotion.