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Study Objective The aim of this study is to compare clinical and surgical outcomes of robotic single-port hysterectomy (RSPH) using the da Vinci SP® surgical system and robotic multi-site hysterectomy (RMSH) using the da Vinci Xi® surgical system in benign disease. Design Multicenter retrospective case-controlled study. Setting A university tertiary care hospital. (Ewha Womans University, Seoul Hospital and MokDong Hospital, Seoul, Republic of Korea) Patients or Participants It is enrolled robotic single-port hysterectomy cases (RSPH, n=67) and robotic multi-site hysterectomy cases (RMSH, n=67) from Nov. 2018 to Jun 2020.Nov. 2015 in benign gynecologic diseases. Interventions All patients underwent RSPH or RMSH. Basic information such as age, BMI, previous surgery history, delivery history and postoperative results such as intraoperative blood loss and postoperative complications were collected and compared. Measurements and Main Results There were no statistical differences of clinical characteristics such as age, BMI and parity. The weight of specimen was higher in RMSH group than that in RSPH group (302.64±190.56 vs 369.24±181.70, p-value 0.04). The estimated blood loss (EBL) and the change in hemoglobin after surgery in RSPH group were less than those in RMSH group (97.39±113.79ml vs 224.93±152.29ml, p-value Conclusion In this study, robotic single-port hysterectomy using da Vinci SP® surgical system is reliable procedures as like robotic multi-site hysterectomy except huge cases. Rather than, surgeons can reduce perioperative bleeding during RSPH by performing the sophisticated surgery. However further studies are required to clarify the feasibility and safety of the new robotic surgical system.

Study Objective To report our initial experience of robotic single port laparoscopy using the da Vinci SP® surgical system for benign gynecologic diseases. Design Retrospective cohort study. Setting Academic tertiary care hospital. Patients or Participants 31 women with benign gynecologic diseases. Interventions Robotic single port laparoscopy. Measurements and Main Results From December to January 2019, hysterectomy, myomectomy, adnexectomy, and sacrocolpopexy were performed in 7, 12, 5, and 7 women, respectively. The mean age and body mass index of patients were 47.7±12.8 years and 22.7±3.1 kg/m2. In terms of operative outcomes, the mean docking time, operating time, estimated blood loss, and hospitalization were 2.2±2.1 minutes, 126.3±61.6 minutes, 93.9±76.9 mL, and 4.6±0.7 days. There was no laparoconversion or major complication. Conclusion Robotic single port laparoscopy using the da Vinci SP surgical system might be an alternative surgical technique for various benign gynecologic diseases However, further studies are required to clarify the feasibility and safety of the new robot surgical system.

Study Objective The study aimed to discuss the safety, feasibility and advantages of the Robotic Single-Site hysterectomy (RSSH) in gynecological field. Design Retrospective analysis of 179 cases of RSSH Setting Department of Obstetrics and Gynecology, College of Medicine, Robot Surgery Center, Ewha Womans University Patients or Participants 179 patients who had RSSH Interventions From December 2014 to January 2019, 179 cases of Robotic Single-Site Hysterectomy which was done by 3 gynecologic surgeons at Ewha Womans University Medical Center were retrospectively analyzed. Measurements and Main Results There were total 179 cases of the Robotic Single-Site hysterectomy. One hundred seventy cases had adenomyosis, or leiomyoma or those combined diseases. The mean ages was 47.24±6.02. The mean total operation time was 120.44±40.61 mins, with the mean docking time 3.47±1.79 mins. The mean estimated blood loss (EBL) was 177.12±184.82 ml and the mean hemoglobin change was 1.92±0.95 g/dl. The mean hospitalization period was 4.98±1.24 days. Only few intraoperative or perioperative complication in 7cases (0.039%) were noted. The conversion rate to laparotomy was zero. Conclusion The Robotic Single-Site hysterectomy is a safe, reliable and feasible surgical method in gynecology.