Less Pain and Reduced Risk of Early Postoperative Ileus After Clipless Versus Conventional Laparoscopic Appendectomy

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Laparoscopic appendectomy (LA) is perceived as a procedure requiring a short hospital stay; however, some patients require prolonged hospitalization because of postoperative ileus and pain; therefore, we introduced clipless LA, using only an ultrasonic energy device only for coagulation. A total of 1013 patients (clipless LA; n=290 and conventional LA; n=723) who underwent LA at our hospital between January 2015 and February 2018 were analyzed. The mean operative time was shorter (P<0.001), and postoperative pain score at 24 hours was lower (P<0.001) for clipless than for conventional LA. There were no significant differences in postoperative complications, except with regard to early postoperative ileus (clipless LA; 18.1% vs. conventional LA; 31.6%, P=0.025), and the operative method had significantly influenced early postoperative ileus (relative risk, 0.505; 95% confidence interval, 0.257-0.994; P=0.048). Clipless LA is comparable to conventional LA with regard to operative safety but results in significantly less pain and postoperative ileus.

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