Single-use versus conventional reusable flexible ureteroscopes – an evaluation of the functional parameters
Authors: Bragaru Marius ,   Urology Department, Sf. Ioan Emergency Clinical Hospital, Bucharest, Romania,   3rd Department, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania, Multescu Razvan ,   Urology Department, Sf. Ioan Emergency Clinical Hospital, Bucharest, Romania, Georgescu Dragos ,   Urology Department, Sf. Ioan Emergency Clinical Hospital, Bucharest, Romania,   3rd Department, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania, Bulai Cătălin ,   Urology Department, Sf. Ioan Emergency Clinical Hospital, Bucharest, Romania,   3rd Department, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania, Ene Cosmin ,   Urology Department, Sf. Ioan Emergency Clinical Hospital, Bucharest, Romania,   3rd Department, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania, Popescu Razvan ,   Urology Department, Sf. Ioan Emergency Clinical Hospital, Bucharest, Romania,   3rd Department, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania,   * Corresponding Author: Razvan Popescu, Urology Department, Sf. Ioan Emergency Clinical Hospital, Bucharest, Romania. 3rd Department, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania. E-mail: dr.razvanp@gmail.com, Geavlete Petrişor ,   Urology Department, Sf. Ioan Emergency Clinical Hospital, Bucharest, Romania,   3rd Department, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania, Geavlete Bogdan ,   Urology Department, Sf. Ioan Emergency Clinical Hospital, Bucharest, Romania,   3rd Department, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania
Published: May 2023

The purpose of single-use flexible ureteroscopes (su-fURS) was to overcome the limitations of conventional reusable ureteroscopes in terms of maneuverability and maintenance. We aimed to perform a systematic literature review on available su-fURS performanceversusconventional reusable fURS focusing on clinical data. A systematic research using Pubmed was performed evaluating single-use fURS and reusable fURS in urinary tract stone disease, including prospective assessments and case series. This review aimed to provide an overview of single-use and disposable flexible ureteroscopes and to examine and compare their capabilities (deflection, irrigation, optical properties). We included 11 studies, where the single-use fURS were compared to the reusable fURS. The studies with single-use ureteroscopes included data on LithoVue (Boston Scientific), The Uscope UE3022 (Pusen, Zhuhai, China), NeoFlex-Flexible, (Neoscope Inc San Jose, CA), 23 YC-FR-A (Shaogang). For reusable ureteroscopes, data were included on three models, two digital (Karl Storz Flex-XC and Olympus URF-Vo) and one fiber optic (Wolf-Cobra). There were no significant differences in stone-free rate, procedure duration, or functional capabilities between single-use fURS and reusable fURS. The systematic literature review analyzed operative time, functional capabilities, stone-free rates, and postoperative complications of the ureteroscopes, and a special chapter about renal abnormalities to emphasize that they are a good choice having a high proportion of stone-free rates and few risks, particularly in treating difficult-to-access calculi. Single-use fURS demonstrate a comparable efficacy with reusable fURS in resolving renal lithiasis. Further studies on clinical efficacy are needed to determine whether single-use fURS will reliably replace its reusable counterpart.