Backgrounds Robotic surgeries have been used frequently for benign diseases in gynecology. However, the advantage of robotic surgery for huge uterus is unclear. Methods We analyzed surgical outcomes of 527 patients who underwent robotic hysterectomies for benign diseases, separating uterine sizes into five groups by every 250 g. Results Median operative time in the five groups was 123 minutes (<250 g), 130 minutes (250‐500 g), 144 minutes (500‐750 g), 180 minutes (750‐1000 g), and 170 minutes (>1000 g). Median estimated blood loss was 50, 100, 100, 200, and 400 mL in the five groups, respectively. The incidence of intraoperative complications did not correlate with uterine weight. Conclusions Operative time, estimated blood loss, and the incidence of conversion to laparotomy increased with uterine size during robotic hysterectomies, especially evident in a uterus >750 g.

Background/Aim: The purpose of this study was to evaluate the learning curve of robotic hysterectomy and pelvic lymphadenectomy for early-stage endometrial carcinoma. Patients and Methods: A retrospective chart review was performed on the first 81 surgeries performed by a single surgeon. The 81 cases were divided into three groups; 4 subgroups of 20 cases each, 3 subgroups of 27 cases each, and 2 subgroups of 40 cases each. The surgical outcomes in each group were analyzed, using operative time, estimated blood loss, and the number of lymph nodes resected. Results: The median operating time, estimated blood loss, and number of pelvic lymph nodes were 147 min, 50 g and 23, respectively. The estimated blood loss improved over time significantly, when dividing by every 27 and 40 cases. No statistical significance was shown regarding operative time and the number of lymph nodes. Conclusion: Approximately, 30 cases were needed to gain proficiency in the surgical technique. Patients and MethodsWe conducted a retrospective, cross-sectional chart review of patients who underwent robotic-assisted staging surgery from January 2012 to March 2016 by a single surgeon in a tertiary care referral hospital. Indication criteria included early-stage endometrial cancer [preoperatively considered as International Federation of Gynecology and Obstetrics (FIGO) stage I and II of endometrial cancer]. Preoperative diagnosis was performed by computed tomography (CT) and magnetic resonance imaging (MRI). All surgeries were performed by a single surgeon with 40 years of 4173 # These Authors contributed equally to this study.