• Yunxiao Lyu, Yunxiao Cheng, Bin Wang, Weibing Du, and Yueming Xu.
• Department of Hepatobiliary Surgery, Dongyang People's Hospital, Dongyang, Zhejiang Province, China.
• Medicine (Baltimore). 2020 Feb 1; 99 (6): e19134e19134.

BackgroundThis study aimed to identify the best procedure for addressing inguinal hernias by comparing results after transabdominal preperitoneal (TAPP), totally extraperitoneal (TEP), and Lichtenstein repairs using a network meta-analysis.MethodsWe conducted a systematic search of MEDLINE, Web of Science, the Cochrane Central Library, and ClinicalTrials.gov up to September 1, 2018 for randomized controlled trials (RCTs) comparing the TAPP, TEP, and Lichtenstein procedures. The study outcome were the hernia recurrence, chronic pain, hematoma, seroma, wound infection, operation time, hospital stay, and return-to-work days.ResultsAltogether, 31 RCTs were included in the meta-analysis. The results of this network meta-analysis showed there were no significantly differences among the 3 procedures in terms of hernia recurrence, chronic pain, hematoma, seroma, hospital stays. Lichtenstein had a shorter operation time than TAPP+TEP [MD (95%Crl)]: 12 (0.51-25.0) vs 18 (6.11-29.0) minutes, respectively) but was associated with more wound infections than TEP: OR 0.33 (95%Crl 0.090-0.81). Our network meta-analysis suggests that TAPP and TEP require fewer return-to-work days [MD (95%CI)]: - 3.7 (-6.3 to 1.3) vs -4.8 (-7.11 to 2.8) days.ConclusionOur network meta-analysis showed that there were no differences among the TAPP, TEP, and Lichtenstein procedures in terms of safety or effectiveness for treating inguinal hernias. However, TAPP and TEP could decrease the number of return-to-work days. A further study with more focus on this topic for inguinal hernia is suggested.

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