Laparoendoscopic single site (LESS) surgery is in line with the development trend of minimally invasive surgery. Resolving the problems caused by the tiny single trocar is very important for the popularizing of LESS surgery. From February to September in 2012, 34 patients with cholecystolithiasis or polypoid lesions of the gallbladder received gasless singleincision laparoscopic cholecystectomy at the Xuanwu Hospital. All the operations were successfully done, with no conversion to conventional laparoscopic surgery or open surgery. The mean operation time, intraoperative blood loss and duration of postoperative hospital stay were 70 minutes (range,45-135 minutes), 18 ml (range,5-40 ml) and 3.4 days (range,3-4 days). There was no complication within the follow up of 3 weeks, and all patients recovered well with satisfied cosmetic effect. Combination of gasless single incision laparoscopic techniques could decrease the difficulty of LESS surgery and help to popularize LESS surgery.
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