Kunlin Yang1, Shubo Fan1, Jie Wang1, Lu Yin1, Zhihua Li1, Shengwei Xiong1, Guanpeng Han1, Chang Meng1, Peng Zhang2, Xuesong Li3, Liqun Zhou4. 1. Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; National Urological Cancer Center, Beijing, China. 2. Department of Urology, Emergency General Hospital, Beijing, China. 3. Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; National Urological Cancer Center, Beijing, China. Electronic address: pineneedle@sina.com. 4. Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; National Urological Cancer Center, Beijing, China. Electronic address: zhoulqmail@sina.com.
Abstract
BACKGROUND: Robot-assisted autologous graft ureteroplasty provides another treatment option for complex ureteral strictures, circumventing ileal ureter or renal autotransplantation. OBJECTIVE: To report the medium-term outcome of robotic ureteroplasty with a lingual mucosal graft (RU-LMG) for managing complex ureteral strictures. DESIGN, SETTING, AND PARTICIPANTS: Between June 2019 and September 2020, 12 patients underwent RU-LMG. The perioperative variables were prospectively collected, and the outcomes were assessed. SURGICAL PROCEDURE: After ureteral stricture dissection, the narrow segment was cut longitudinally, and a lingual mucosal graft (LMG) of the required length was harvested, followed by double-J stent placement and LMG ventral onlay anastomosis. If the diseased ureter required transection, posteriorly augmented ureteral anastomosis could be performed before LMG harvest. Finally, the anastomotic area was wrapped by the omental flap. MEASUREMENTS: A descriptive statistical analysis was performed. The criteria for complete success included the absence of both clinical symptoms and obstruction on radiography. RESULTS AND LIMITATIONS: Seven patients (58%) had a history of failed ureteral reconstruction. The mean (range) stricture length was 4.7 (3-6.5) cm, LMG length was 4.4 (3-7) cm, LMG width was 1.5 (1-2) cm, operative duration was 197.1 (130-346) min, estimated blood loss was 49.2 (10-200) ml, and the duration of postoperative hospitalization was 6 (4-14) d. No open conversions and intraoperative complications occurred. The median follow-up time was 15 mo (range: 13-27 mo). The overall success rate was 92% (11/12). CONCLUSIONS: These medium-term follow-up results demonstrate that RU-LMG is a safe and feasible technique for repairing ureteral strictures. PATIENT SUMMARY: Our study proves that robotic ureteroplasty with a lingual mucosal graft is a safe and feasible technique for ureteral reconstruction that can serve as another choice for managing long, complex ureteral strictures.
BACKGROUND: Robot-assisted autologous graft ureteroplasty provides another treatment option for complex ureteral strictures, circumventing ileal ureter or renal autotransplantation. OBJECTIVE: To report the medium-term outcome of robotic ureteroplasty with a lingual mucosal graft (RU-LMG) for managing complex ureteral strictures. DESIGN, SETTING, AND PARTICIPANTS: Between June 2019 and September 2020, 12 patients underwent RU-LMG. The perioperative variables were prospectively collected, and the outcomes were assessed. SURGICAL PROCEDURE: After ureteral stricture dissection, the narrow segment was cut longitudinally, and a lingual mucosal graft (LMG) of the required length was harvested, followed by double-J stent placement and LMG ventral onlay anastomosis. If the diseased ureter required transection, posteriorly augmented ureteral anastomosis could be performed before LMG harvest. Finally, the anastomotic area was wrapped by the omental flap. MEASUREMENTS: A descriptive statistical analysis was performed. The criteria for complete success included the absence of both clinical symptoms and obstruction on radiography. RESULTS AND LIMITATIONS: Seven patients (58%) had a history of failed ureteral reconstruction. The mean (range) stricture length was 4.7 (3-6.5) cm, LMG length was 4.4 (3-7) cm, LMG width was 1.5 (1-2) cm, operative duration was 197.1 (130-346) min, estimated blood loss was 49.2 (10-200) ml, and the duration of postoperative hospitalization was 6 (4-14) d. No open conversions and intraoperative complications occurred. The median follow-up time was 15 mo (range: 13-27 mo). The overall success rate was 92% (11/12). CONCLUSIONS: These medium-term follow-up results demonstrate that RU-LMG is a safe and feasible technique for repairing ureteral strictures. PATIENT SUMMARY: Our study proves that robotic ureteroplasty with a lingual mucosal graft is a safe and feasible technique for ureteral reconstruction that can serve as another choice for managing long, complex ureteral strictures.
Authors: W Zuo; F Gao; C W Yuan; S W Xiong; Z H Li; L Zhang; K L Yang; X F Li; L Liu; L Wei; P Zhang; B Wang; Y M Gu; H J Zhu; Z Zhao; X S Li Journal: Beijing Da Xue Xue Bao Yi Xue Ban Date: 2022-08-18