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|a Introduction: This study investigated the effect of complete reduction and transection of the hernia sac during laparoscopic indirect inguinal hernia repair on seroma. Methods: Retrospective analysis was performed on 1763 cases undergoing laparoscopic indirect inguinal hernia repair in three centers from January 2017 to September 2019, among them, 311 patients with transection of hernia sac and 1452 patients with reduction of hernia sac, the data of the two groups were tested by t-test. Logistic univariate analysis was performed on 233 cases of postoperative seroma, and variables p < 0.05 in univariate analysis were included for multivariate analysis. Then, the transection group and the reduction group were matched with 1:1 propensity score matching, and the caliper value was set at 0.05. Finally, 274 patients matched in each group were analyzed by univariate analysis again to evaluate whether the transection of hernia sac had an impact on postoperative seroma. Results: The results of univariate analysis of 233 patients with postoperative seroma showed that: ASA-3 p = 0.031, classification-L3 p < 0.001, surgery-TEP p < 0.001, transect group p = 0.005. The results of multivariate analysis show that: ASA-3 p < 0.001, classification-L3 p < 0.001, surgery-TEP p < 0.001, transect group p = 0.020. The results of univariate analysis after propensity score matching showed that transection of the hernia sac is significant for postoperative seroma (p < 0.001). Conclusion: Transection of the hernia sac during laparoscopic indirect inguinal hernia repair can significantly lead to postoperative seroma. © 2022, The Author(s).
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