MP65-07 COMPARISON OF RESIDUAL STONE FRAGMENTS IN THULIUM VS CONVENTIONAL HOLMIUM LASER DURING IN SITU LOWER POLE LITHOTRIPSY

You have accessJournal of UrologyStone Disease: Surgical Therapy V (MP65)1 Sep 2021MP65-07 COMPARISON OF RESIDUAL STONE FRAGMENTS IN THULIUM VS CONVENTIONAL HOLMIUM LASER DURING SITU LOWER POLE LITHOTRIPSY Akin S. Amasyali, Joshua D. Belle, Natalie Chen, Mohammed Keheila, Jenna Lee, Nathaniel Srikureja, Elizabeth Baldwin, and Duane Baldwin AmasyaliAkin Amasyali More articles by this author , BelleJoshua Belle ChenNatalie Chen KeheilaMohammed Keheila LeeJenna Lee SrikurejaNathaniel Srikureja BaldwinElizabeth BaldwinD. View All Author Informationhttps://doi.org/10.1097/JU.0000000000002105.07AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: Lower pole stones represent a unique challenge in ureteroscopic laser lithotripsy. Due the dependent nature lower pole, residual fragments may persist lead stone growth. The novel thulium fiber (TFL) has smaller caliber fibers wider range power frequency settings which allow surgeons individualize situ treatment. purpose study was compare TFL with conventional holmium determine what energy sizes result lowest during METHODS: In benchtop model, 3D printed kidney ureter were attached 2 x mm metal mesh submerged saline bath. Sixty-five 1cm BegoStones (calcium oxalate monohydrate consistency) placed fragmented same surgeon using flexible ureteroscope. considered treated once all had passed through 2mm grid. Laser lithotripsy performed following setting combinations: 60W at 1J 20Hz (20W), 0.4J 50 Hz 0.2J 100Hz 0.1J 200Hz (20W) for both 150 200 µm fibers; 100W Empower 50Hz 272 fibers. Residual collected, dried, weighed. Independent T-test ANOVA statistical analysis significance set p<0.05. RESULTS: Pre treatment weights similar between groups (p=0.985). When laser, less remained compared (10.99% vs. 17.28%, p<0.01, Fig. 1). Overall operating time significantly different 12 trials (p<0.01). 150µm fastest procedure (18.5 min, p<0.05). Thulium required stripping than (0.15 0.44 times, CONCLUSIONS: Our showed that use resulted 57% when laser. This results need spontaneous passage potentially reduces reformation, making particularly desirable treating situ. Source Funding: None © 2021 American Urological Association Education Research, Inc.FiguresReferencesRelatedDetails Volume 206Issue Supplement 3September 2021Page: e1121-e1121 Advertisement Copyright & Permissions© Inc.MetricsAuthor Information Expand Loading ...