Abstract
We report our experience in the treatment of ureteral and urethral disease using a holmium: yttrium-aluminum-garnet (Ho:YAG) laser. From April 1998 to October 1999, 27 patients with ureteral and urethral lesions underwent Ho:YAG laser operations. Seventeen patients had a total of 21 ureteral stones (10 upper, 1middle, and 10 lower ureter). Among the remaining patients, 1 had stones combined with ureteral stricture, 5 had ureteral ployp, and 3 had ureteral stricture. One other had urethral stricture only. We used a 6.0/7.5 Fr.semi-rigid tapered ureteroscope with a 550-μm SlimLine laser fiber for the energy was set at a power of 0.5 to 1.0 J, and a frequency from 5 to 15 Hz. All stones were successfully fragmented, and the post-operative stone-free rate was 100%. The ureteral polyps were completely ablated. The ureteral and urethral strictures were successfully incised. There were no intraoperative complications in this retrospective analysis. The Ho: YAG laser is an effective and safe treatment modality for ureteral and urethral lesions, and provides the urologist with another choice for ureteral and urethral endourology. With its thin laser fiber, this laser technique provides exellent results in either fragmentation or ablation, without difficulty.
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