Pressure reduction and suction characteristics of the new digital single use flexible ureteroscope with suction: an in-vitro experimental study.

Autor: Ballesta Martinez B; Department of Urology, University Hospital del Vinalopó, Elche, Alicante, Spain. bballestamartinez@gmail.com., Dragos L; University of Cambridge NHS Foundation Trust, Cambridge, UK., Tatanis V; Department of Urology, University of Patras, Patras, Greece., Somani B; Department of Urology, University Hospital Southampton NHS Foundation Trust, Southampton, UK., Campillo Martinez P; Department of Urology, University Hospital del Vinalopó, Elche, Alicante, Spain., Angerri O; Department of Urology, Fundació Puigvert, Barcelona, Spain., Peteinaris A; Department of Urology, University of Patras, Patras, Greece., Tsaturyan A; Department of Urology, Erebouni Medical Center, Yerevan, Armenia., Kanashiro A; Department of Urology, Fundació Puigvert, Barcelona, Spain., Garces Valverde M; Department of Urology, University Hospital del Vinalopó, Elche, Alicante, Spain., Garcia Serrano MC; Department of Interventional Radiology and Haemodinamics, University Hospital del Vinalopó, Elche, Alicante, Spain., Lopez Vivo J; Department of Urology, University Hospital del Vinalopó, Elche, Alicante, Spain., Fumero Arteaga S; Department of Urology, Hospital Universitario Ntra Sra de Candelaria, Tenerife, Spain., Liatsikos E; Department of Urology, University of Patras, Patras, Greece.; Department of Urology, Medical University of Vienna, Vienna, Austria., Kallidonis P; Department of Urology, University of Patras, Patras, Greece.
Jazyk: angličtina
Zdroj: World journal of urology [World J Urol] 2024 Nov 12; Vol. 42 (1), pp. 638. Date of Electronic Publication: 2024 Nov 12.
DOI: 10.1007/s00345-024-05334-1
Abstrakt: Purpose: To assess the time taken by the single use 7.5Fr suction flexible ureteroscope to reduce pressure under 40 mm Hg and to characterize the behavior of stones, fragments and dust during suction activation.
Methods: An in vitro setting was developed for this experiment. A saline-filled globe, with the 7.5Fr single-use suction flexible ureteroscope, PU3033AH (ZhuHai Pusen Medical Technology Co, Ltd, Guangdon, China), an automatic irrigation pump and a pressure monitoring set were used at four modalities; i) continuous suction, no irrigation inflow; ii) continuous suction, irrigation inflow on; iii) one-second rate intermittent suction, irrigation inflow on, and iv) half-second rate intermittent suction, irrigation inflow on. The behavior of calcium oxalate stones from 0.5 to 5 mm when being aspirated via the ureteroscope into a plastic container filled with saline was recorded.
Results: Suction with the PU3033AH worked properly with the inflow irritation on. The fastest strategy to lower the pressure was by continuously pressing the suction button with the irrigation inflow on. Overall, the median time to reach 40 mg was roughly 3.5 s. The PU3033AH could aspirate 0.5 mm stones. The suction mode on a continuous pattern allowed the relocation of stones ranging from 1 to 5 mm on an experimental setup with no obstacles.
Conclusion: The PU3033AH was efficient in lowering pressure in a closed cavity mimicking the renal pelvis. Likewise, stone fragments under one millimeter were aspirated by the device whereas stones from one to five mm could be displaced when activating suction in continuous mode on an experimental setup with no obstacles.
Competing Interests: Declarations Conflict of interest Dr. Laurian Dragos is lecturer for EMS and Boston Scientific and consultant for Ambu. Dr. Bhaskar Somani is consultant for Pusen, Boston Scientific, Cook Medical, Coloplast and Olympus. Dr. Oriol Angerri is lecturer for Boston Scientific and Cook Medical. Dr. Evangelos Liatsikos is consultant for Cook Medical and Karl Storz and lecturer for Karl Storz, Boston Scientific, EMS and Redpine. Dr. Panagiotis Kallidonis is lecturer for EMS and Cook Medical. None of the rest of authors have any conflict of interest to disclose.
(© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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