Could Use of a Flexible and Navigable Suction Ureteral Access Sheath Be a Potential Game-changer in Retrograde Intrarenal Surgery? Outcomes at 30 Days from a Large, Prospective, Multicenter, Real-world Study by the European Association of Urology Urolithiasis Section

作者：Vineet Gauhar, Olivier Traxer, Daniele Castellani, Christian Sietz, Ben H. Chew, Khi Yung Fong, Saeed Bin Hamri, Mehmet Ilker Gökce, Nariman Gadzhiev, Andrea Benedetto Galosi, Steffi Kar Kei Yuen, Albert El Hajj, Raymond Ko, Marek Zawadzki, Vikram Sridharan, Mohamed Amine Lakmichi, Mariela Corrales, Vigen Malkhasyan, Deepak Ragoori, Boyke Soebhali, Karl Tan, Chu Ann Chai, Azimdjon Tursunkulov, Yiloren Tanidir, Satyendra Persaud, Mohamed El-Shazly, Wissam Kamal, Tzevat Tefik, Anil Shrestha, Heng Chin Tiong, Bhaskar Somani · 发表于：European Urology Focus · 年份：2024 · DOI：10.1016/j.euf.2024.05.010 · 被引用次数：153 · 研究领域：Kidney Stones and Urolithiasis Treatments、Ureteral procedures and complications、Pediatric Urology and Nephrology Studies

Background and objective The aim of this study was to evaluate the stone-free status (SFS) rate and complications after flexible ureteroscopy (fURS) for treatment of renal stones using a flexible and navigable suction (FANS) ureteral access sheath. Methods Data for adults undergoing fURS in 25 centers worldwide were prospectively collected (August 2023 to January 2024). Exclusion criteria were abnormal renal anatomy and ureteral stones. All patients had computed tomography scans before and within 30 d after fURS with a FANS ureteral access sheath. SFS was defined as follows: grade A, zero fragments; grade B, a single fragment ≤2 mm; grade C, a single fragment 2.1–4 mm; and grade D, single/multiple fragments >4 mm. Data for continuous variables are presented as the median and interquartile range (IQR). Multivariable logistic regression was performed to evaluate predictors of grade A SFS. Key findings and limitations The study enrolled 394 patients (59.1% male) with a median age of 49 yr (IQR 36–61). The median stone volume was 1260 mm 3 (IQR 706–1800). Thulium fiber laser (TFL) was used in 45.9% of cases and holmium laser in the rest. The median lasing time was 18 min (IQR 11–28) and the median operative time was 49 min (IQR 37–70). One patient required a blood transfusion and 3.3% of patients had low-grade fever. No patient developed sepsis. Low-grade ureteral injury occurred in eight patients (2%). The grade A SFS rate was 57.4% and the grade A + B SFS rate was 97.2%, while ...