The clinical efficacy of novel semirigid ureteroscopy with a vacuum suction device for treatment of >10 mm upper ureteral stones and impacted calculus: implications for clinical practice

作者：Longhui Lai, Yuanfeng Zhang, Yingru Wang, Enguang Yang, G. F. Fan, Chaohu Chen, Kang Yao, Wenzhao Zhang, Y Y Liu, Kai Zhu, M Ding, Jinchun Xing, Zhiping Wang, Peide Bai, Tao Wang, B. H. Chen, Jun Mi · 发表于：Frontiers in Surgery · 年份：2026 · DOI：10.3389/fsurg.2025.1656819 · 被引用次数：1 · 研究领域：Kidney Stones and Urolithiasis Treatments、Pediatric Urology and Nephrology Studies、Ureteral procedures and complications

Objective: The novel semirigid ureteroscopy with a vacuum suction device has been increasing in the treatment of urinary stones recently. This study aimed to evaluate its clinical efficacy for treating >10 mm upper ureteral stones and impacted calculus and to further assess the efficacy by using a vacuum suction device during lithotripsy procedures. Patients and methods: This study included 156 patients with >10 mm upper ureteral calculi who underwent laser lithotripsy under the novel semirigid ureteroscopy with a vacuum suction device. The vacuum suction device and the end of the ureteral access sheath (UAS) were joined together to create a closed circulation working channel between the former and the collection system. This circulation working channel allows the operator to suction stone fragments out of the body during lithotripsy. Based on impacted and non-impacted upper ureteral stones, subgroup analysis was performed. Results: Of the 156 patients, 150 underwent successful phase I ureteral sheath placement and lithotripsy. 6 patients were unsuccessfully placed for UAS because of upper ureteral stenosis, but all of them received indwelling Double-J tubes for one month and then underwent successful second-stage lithotripsy. The average operative time was 43.8 ± 25.7 min. The stone-free rate (SFR) was 57.7% (90/156) at 1 day postoperatively, and 87.8% (137/156) at 1 month postoperatively. The rate of complications was 9.0% (14/156). In subgroup analysis, for the impacted st...