22 May 1997 Treatment of urethral strictures with the KTP 532 laser
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Abstract
The objective of this study was to evaluate and compare the safety and efficacy of the KTP 532 laser to direct vision internal urethrotomy (DVIU) in the management of urethral strictures. A total of 32 patients were randomized prospectively in this study, 14 DVIU and 18 KTP 532 laser. Patients were evaluated postoperatively with flowmetry and in the case of recurrence with cystourethrography at 3, 12, 24 weeks. With the KTP 532 laser complete symptomatic and urodynamic success was achieved in 15 (83%) patients at 12 and 24 weeks. Success rate was lower in the DVIU group with 9 (64%) patients at 12 weeks and 8 (57%) patients at 24 weeks. With the KTP mean preoperative peak-flow was improved from 6 cc/s to 20 cc/s at 3, 12 and 24 weeks. With DVIU mean preoperative peak-flow was improved from 5.5 cc/s to 20 cc/s at 3 weeks followed by a steady decrease to 13 cc/s at 12 weeks and to 12 cc/s 24 weeks. No complications were observed in either group of patients. Our results confirm that stricture vaporization with the KTP 532 laser is a safe and efficient procedure. It thus represents a valuable alternative in the endoscopic treatment of urethral strictures.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Franz R. Schmidlin, Franz R. Schmidlin, Michael Oswald, Michael Oswald, Christoph E. Iselin, Christoph E. Iselin, Patrice Jichlinski, Patrice Jichlinski, Guy P. Delacretaz, Guy P. Delacretaz, Hans-Juerg Leisinger, Hans-Juerg Leisinger, Peter Graber, Peter Graber, } "Treatment of urethral strictures with the KTP 532 laser", Proc. SPIE 2970, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems VII, (22 May 1997); doi: 10.1117/12.275073; https://doi.org/10.1117/12.275073
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