水力学的尿管拡張による経尿道的尿管砕石術(TUL)の経験

概要

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1987年1月から1年間に32例,39尿管結石に対して水力学的尿管拡張による経尿道的尿管砕石術を施行した.全体としての成功率は30/39で,上部尿路結石については3/6,中部尿管結石については6/11,下部尿管結石については21/22の成功率であった.合併症としては1例に下部尿管狭窄が認められたTransurethral ureterolithotripsy was performed in 32 patients with ureteral stones. A rigid ureteroscope was used and for the purpose of ureteral dilatation a hydraulic ureteral dilator (Ureteromat) was used. In total 39 stones were treated and of these 30 stones (77%) were successfully extracted or disintegrated. The success rate according to the location of the stone was as follows; 50% for the upper ureteral stone, 55% for middle ureteral stone and 96% for lower ureteral stone. As a complication of the procedure a lower ureteral stricture was noted in one patient. Hydraulic ureteral dilatation is a useful method of ureteral dilatation in transurethral ureterolithotripsy.