Development and Efficacy of Gasless Reduced-Port Laparoscopic Surgery for Gynecological Diseases.

Objective: To evaluate the efficacy of gasless reduced-port laparoscopic surgery (GRP-LS) using a subcutaneous abdominal wall lifting method for gynecological diseases. Methods: This study included gasless laparoscopic surgeries performed at our hospital between September 1, 1993 and December 31, 2016. The new GRP-LS technique was compared with the conventional gasless three-port laparoscopic surgery (G3P-LS), based on patient background, operative results in patients treated for laparoscopic myomectomy (LM), laparoscopic ovarian cystectomy (LC), and laparoscopic salpingectomy (LT). Surgeons of the two techniques were categorized by the number of surgeries they had performed, and the number of surgeons and surgeries for each technique were compared. Results: GRP-LS was used in 2,338 cases and G3P-LS in 2,473 cases. GRP-LS was used in 980 LM cases, 804 LC cases, 240 LT cases, and 314 cases for other conditions. The operative time required for GRP-LS was significantly less for LM, LC, LT, and the procedure also had less blood loss for LM and LC than G3P-LS. G3P-LS required a transition to open surgery in 0.69% of cases, whereas GRP-LS showed a very low rate of 0.09%. Sixty-seven of the 78 GRP-LS surgeons (85.9%) had performed fewer than 50 GRP-LSs, and these surgeons performed about half of all surgeries. Eighty-three of the 93 GRP-LS surgeons (89.2%) had performed fewer than 50 G3P-LSs, and these surgeons performed 38.9% of all surgeries. Conclusions: GRP-LS is an effective surgery with few complications and less cosmetic damage and can be easily introduced to novice or inexperienced laparoscopic surgeons.