TRANSURETHRAL ENDOURETEROPYELOTOMY

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  • 経尿道的尿管腎盂切開術について

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Transurethral endoureteropyelotomy was performed in a total of 37 patients with primary ureteropelvic junction obstruction or various ureteral strictures. Thirty-one (84%) of the 37 evaluable patients showed a radiographical improvement of hydronephrosis with a mean follow-up period of 15.8±10.5 months (range: 3-40). The clinical success rates were as follows: primary ureteropelvic junction obstruction, 11/12 92%); upper ureteral stricture, 6/7 (86%); lower ureteral stricture, 14/18 (78%). This endourological procedure required a mean operation time of 68.0±27.7 minutes and hospital stay of 7.3±4.9 days. No major complication has been identified. This retrograde procedure has a straight access to the strictured segment of ureteropelvic junction. It is safe and less invasive to the renal parenchym as it does not require percutaneous nephrostomy. Therefore, it might be clinically useful for the treatment of primary ureteropelvic junction obstruction and other ureteral strictures.

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