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経尿道的手術後の尿道狭窄発症予防の目的で,術直前OTIS内尿道切開を施行した.外尿道口は32Fにて6時に,前部尿道は全長にわたり30Fにて12時を切開し,その後にブジー30Fを挿入した群を,ブジーのみで内尿道切開を施行しなかった群を対照として術後の尿道狭窄発症率を検討した.術前に狭窄のなかった316例では内尿道切開群153例中狭窄7例(4.6%),対照群163例中狭窄37例(22.7%)で有意(P<0.01)に切開群に狭窄の発症率は少なかった.また,既存の尿道狭窄の治療にも本術式は有効と考えられた.本操作に伴った合併症はほとんどなく,経尿道的手術に際しては積極的に施行してよい方法である.
Postoperative urethral stricture is a major probrem in transurethral prostatectomy. Several studies have indicated that these stricture can be prevented by internal urethrotomy just before TUR. We compared the incidence of uethral stricture in 163 patients who had TURP without internal urethrotomy against 153 patients with it. In the urethrotomy groupe the incident of urethral stricture was 4.6% while 22.7% in the control groupe. This difference is significant (P <0.01). We believe this simple and easy technique should be undertaken routinely before transurethral prostatectomy.
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