NOTES cholecystectomy: matched-pair analysis comparing the transvaginal hybrid and conventional laparoscopic techniques in a series of 216 patients

Natural orifice transluminal endoscopic surgery (NOTES) is currently a very important topic for both gastroenterologists and surgeons. We have developed a technique of transvaginal hybrid NOTES cholecystectomy (TVC) that leaves no visible scar and is applicable to daily use. This technique is compared to the conventional laparoscopic cholecystectomy (CLC) in a matched-pair analysis. From June 2007 until February 2009, 108 NOTES cholecystectomies were performed. For a matched-pair analysis we first selected a group of 192 female patients who had undergone CLC and who were operated on by the same group of surgeons in the same time period. Then 108 pairs who had TVC were matched according to the degree of inflammation of the gallbladder and age. We were able to contact 208 patients at least 3 months after surgery. Hence, the study analysis was performed with 100 complete pairs. All 200 cholecystectomies were performed successfully without conversion. The TVC procedure was significantly longer than CLC (52 vs. 35 min, p