Journal of endourology · 2026
Comparison of Flexible and Navigable Suction Versus Conventional Ureteral Sheath in Retrograde Intrarenal Surgery: A Randomized Controlled Prospective RIRSearch Group Study.
СтатьяРандомизированное исследованиеСравнительное исследованиеНазвание и аннотация: Перевод пока не подготовлен
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Şahin Mehmet Fatih, Doğan Çağrı, Teke Kerem, Şimşekoğlu Muhammed Fatih, Tuna Mustafa Bilal, Özman Oktay, Çakır Hakan, Başataç Cem, Çınar Önder, Akgül Murat, Sıddıkoğlu Duygu, Yazıcı Cenk Murat, Sancak Eyüp Burak, Başeskioğlu Barbaros, Akpınar Haluk, Önal Bülent
Аннотация
OBJECTIVE: To compare the efficacy and safety of the flexible and navigable suction ureteral access sheath (FANS-UAS) against the conventional ureteral access sheath (CUAS) in retrograde intrarenal surgery (RIRS).
MATERIALS AND METHODS: A total of 161 patients who underwent RIRS at seven centers using similar surgical methods (thulium fiber laser and 7.5 F disposable flexible ureterorenoscope) were prospectively enrolled in the study between May 2024 and September 2025. The patients were randomized into two groups based on the use of UAS (Group 1: CUAS; Group 2: FANS-UAS). Demographic and clinical data of the patients, stone characteristics, surgical data, perioperative and postoperative complications, duration of hospitalization, and stone-free rates (SFRs) were analyzed for comparison.
RESULTS: Of the 161 patients included in the study, 79 received a CUAS and 82 received a FANS-UAS. The groups were demographically similar (p > 0.05). The postoperative SFR at 1 month was statistically significantly higher in the FANS-UAS group (79.3% vs 63.3%, p = 0.041), and the operative time was shorter in the CUAS group (p = 0.011). The perioperative bleeding rate was higher in the FANS-UAS group (p = 0.034), although there was no significant difference in postoperative hemoglobin decrease. No significant difference was observed between the two groups in terms of postoperative complications (p = 0.162).
CONCLUSION: The FANS-UAS is an effective method that increases SFR compared to the CUAS. Although the FANS-UAS prolongs operation time and increases perioperative bleeding, both FANS-UAS and the CUAS are similarly safe in terms of postoperative complications.
MATERIALS AND METHODS: A total of 161 patients who underwent RIRS at seven centers using similar surgical methods (thulium fiber laser and 7.5 F disposable flexible ureterorenoscope) were prospectively enrolled in the study between May 2024 and September 2025. The patients were randomized into two groups based on the use of UAS (Group 1: CUAS; Group 2: FANS-UAS). Demographic and clinical data of the patients, stone characteristics, surgical data, perioperative and postoperative complications, duration of hospitalization, and stone-free rates (SFRs) were analyzed for comparison.
RESULTS: Of the 161 patients included in the study, 79 received a CUAS and 82 received a FANS-UAS. The groups were demographically similar (p > 0.05). The postoperative SFR at 1 month was statistically significantly higher in the FANS-UAS group (79.3% vs 63.3%, p = 0.041), and the operative time was shorter in the CUAS group (p = 0.011). The perioperative bleeding rate was higher in the FANS-UAS group (p = 0.034), although there was no significant difference in postoperative hemoglobin decrease. No significant difference was observed between the two groups in terms of postoperative complications (p = 0.162).
CONCLUSION: The FANS-UAS is an effective method that increases SFR compared to the CUAS. Although the FANS-UAS prolongs operation time and increases perioperative bleeding, both FANS-UAS and the CUAS are similarly safe in terms of postoperative complications.