Abstract
Manipulation of ureteral and renal calculi can be done under direct vision using a fiberscope with increased safety and efficacy. We treated 207 ureteral and renal stones in 198 patients using electrohydraulic lithotriptor combined with transurethral fiberscope from July 1985 till January 1991. Electrohydraulic lithotripsy (EHL) successfully fragmented 187 out of 207 stones (90.3%). A total of 119 patients (57.5%) became stone-free 3 months after operation, which increased to 170 cases (82.1%) at a mean follow-up of 20 months. There were 6 ureteral perforations (4 due to fiberscope and 2 due to EHL spark damage to the ureteral mucosa), which were treated immediately by open operation (2.9%). In 7 cases (3.4%), the stone could not be fragmented due to its hardness. We believe electrohydraulic lithotropsy treatment combined with transurethral fiberscopy is a safe, effective, noninvasive and economical method for the treatment of urinary tract stones.
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