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- W4247642261 startingPage "441" @default.
- W4247642261 abstract "Nd: YAG laser treatment was carried out for urethral sticture in our institute since 1982. In this report, 21 patients were treated with internal urethrotomy by Nd: YAG laser. 12 of 21 patients required percutaneous cystostomy using a guide wire and bamboo ball to strain the urethra and stricture point. This maneuver it possible to irradiate the stricture point accurately even in cases of full sccaring or the pin hole type strictures.The symptom of the patients was urinary retention in 13 and dysuria in 8.10 of the strictures were caused by traumatic urethral injury, and others were resulted by nontraumatic or unknown origin. 2 of the strictures were secondary to an emergency operation of traumatic urethral injury. The locations of the stricture were divided 7 of pendulous, 15 of bulbous and 2 of membranous portion. Multiple strictures were noted in 3. The complications were obsereved in 5, an acute epididymitis in 1, an acute prostatitis in 1, urethral bleeding in 1 and pyrexia in 2. Of these 21 patients, 14 (66.7%) presented good results (ave. follow-up term 21.7 month), namely improvement of voiding compared with preoperative status, no need for periodic dilatation. Other 7 patients had a reccurent symptom during 3 to 27 months, 3 of them required a reoperation with laser, and dwelling well thereafter. The only 1 patient needed an open surgery, and a conservative therapy with periodic dilatation was done in 3. The irradiation of laser with the guidewire and bamboo ball maneuver was more useful for the longer stricture (average length of stricture was 9.8mm) than usual internal urethrotomy by Nd: YAG laser (ave. 4.5mm). The irradiation were carried out by the former and latter method with averages of 8830J. and 6850J., respectively. Therefore, retrograde maneuver would be reliable and safety method, additionally reduce total energy of the irradiation.A clinical study of internal urethrotomy by Nd: YAG laser for urethral stricture" @default.
- W4247642261 created "2022-05-12" @default.
- W4247642261 date "1990-01-01" @default.
- W4247642261 modified "2023-09-28" @default.
- W4247642261 doi "https://doi.org/10.2530/jslsm1980.11.supplement_441" @default.
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