A Novel Semirigid Ureterorenoscope with Vacuum Suctioning System for Management of Single Proximal Ureteral and Renal Pelvic Stones: An Initial Experience

作者:Li, Kaiwen; Liao, Zhijian; Lin, Tianxin; Li, Zhuohang; He, Wang; Liu, Cheng; Huang, Yuleng; Zhou, Junhong*; Huang, Jian*; Xu, Kewei*
来源:Journal of Endourology, 2018, 32(12): 1154-1159.
DOI:10.1089/end.2018.0565

摘要

Introduction: A novel semirigid ureterorenoscope, named the Sotn ureterorenoscope, was designed with a vacuum suction system. The present study aimed to evaluate the feasibility and safety of using the Sotn ureterorenoscope to manage single proximal ureteral or renal pelvic stones. Patients and Methods: Data were retrospectively collected from consecutive patients treated with a Sotn ureterorenoscope between February 2010 and August 2015 at Sun Yat-sen Memorial Hospital of Sun Yat-sen University and Jiangmen Wuyi Traditional Chinese Medicine Hospital in China. The primary outcome was the primary stone-free rate (SFR) in 1 month. The secondary outcomes were the final SFR and the perioperative complication rate. Results: A total of 386 patients were evaluated, including 240 males and 146 females. The median (interquartile range [IR]) age was 50 (40-59) years. There were 96 and 290 stones located in the renal pelvis and proximal ureter, respectively. The median (IR) operative time and console time for all patients were 40 (30-70) and 20 (12-38) minutes, respectively. The primary overall SFR was 86.5%, whereas the SFRs for stones with a diameter of 1, 1 to 2, and 2 to 3cm were 95.7%, 86.9%, and 69.0%, respectively. Complications occurred in 90 patients (23.3%); these complications were classified as Clavien-Dindo grades 1 to 2 (minor) in 79 (20.5%) patients, and grades 3 to 4 (major) in 11 (2.8%). Conclusions: The novel semirigid Sotn ureterorenoscope featuring a vacuum suction system is effective and safe for managing proximal ureteral and renal pelvic stones.