Comparison of outcomes of single incision robotic cholecystectomy and single incision laparoscopic cholecystectomy

Backgrounds/aims: Multiport laparoscopic cholecystectomy is the standard surgical procedure for symptomatic gallbladder diseases. However, as a result of the ongoing trend toward minimally invasive laparoscopy, single-incision laparoscopic cholecystectomy (SILC) has evolved. Single-incision robotic cholecystectomy (SIRC) can overcome several limitations of manual SILC. The purpose of this study is to evaluate and compare the safety and feasibility of SIRC and SILC. Methods: This study retrospectively reviewed data for all patients who underwent SIRC or SILC from March 2018 to July 2019 in a single institution. The following variables were analyzed: age, sex, body mass index, pain scale, length of stay, and complications. The data were analyzed using the Independent two sample t-test or the Fisher's exact test. Results: A total of 343 patients underwent SIRC or SILC during the study period. After excluding patients with acute cholecystitis, 197 SIRC and 103 SILC patients were analyzed in this study. The surgery time and postoperative hospital stay did not differ between SIRC and SILC. However, the SIRC patients experienced less bile spillage during the surgery than did the SILC patients (SIRC vs. SILC: 24 (23.3%) vs. 11 (5.6%) cases, respectively; p<0.001). Although there was no difference in the incidence of postoperative complications between procedures, additional pain control was administered more frequently in SILC patients (SILC 1.08±0.893, SIRC 0.58±0.795; p