Jackets Off: The Impact of Laser Fiber Stripping on Power Output and Stone Degradation

Journal of Endourology
Cayde RitchieD Duane Baldwin

Abstract

To investigate the effect of laser fiber stripping on stone fragmentation and laser fiber power output. In a benchtop simulation of laser lithotripsy, 20 BegoStone phantoms were positioned within a ureteral model and irradiated for 10 minutes at 8 Hz and 0.8 J. A freshly cleaved 365 μm laser fiber was used for all trials, with half of the fibers also undergoing stripping. Power output was measured at 1-minute intervals, beginning with an initial prelithotripsy recording at 0 minutes. Fiber tips were imaged with scanning electron microscopy. In a single-blinded manner, final masses of residual stone fragments were measured and used to quantify stone breakdown. Independent-sample Mann-Whitney U tests were performed with significance set at p < 0.05, comparing stripped and unstripped fiber tips with respect to power output and fraction of stone fragmentation. Mean power output after 1 minute of lasing was significantly greater in unstripped laser fibers (p = 0.015), while fibers, whether stripped or not, demonstrated no significant output differences prelithotripsy or at any time from 2 to 10 minutes. However, stripped laser fibers achieved significantly increased stone breakdown compared to unstripped fibers (p = 0.004), fragment...Continue Reading

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Citations

Jun 3, 2020·Journal of Endourology·Ali H AldoukhiKhurshid R Ghani
Oct 27, 2017·Frontiers in Surgery·Ali H AldoukhiKhurshid R Ghani
May 19, 2018·Current Urology Reports·Peter Kronenberg, Bhaskar Somani
Jul 4, 2020·Urology·Felipe PauchardOlivier Traxer
Nov 23, 2021·Journal of Endourology·Thibault GermainSteeve Doizi

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Methods Mentioned

BETA
scanning electron microscopy

Software Mentioned

SPSS

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