女性の尿道狭窄に対する尿道ブジー法前後のウロダイナミック検査

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尿道狭窄の女性16名において,尿道ブジーによる尿道拡張法前後のウロダイナミック検査を検討した結果,尿道径の拡張,尿道抵抗の低下および平均尿流量率の改善が認められたWe evaluated the urodynamics in women with urethral stricture after urethral dilatation. A total of 16 patients underwent treatment with gradual urethral dilatation at increasing intervals (2 weeks, 1 month, 3 months and 6 months). Their urethra was dilated up to 30 F. with metal sounds. Urethral calibration with bougie a boule, uroflowmetry and urethral pressure profile were performed before urethral dilatation and 1 week after the last dilatation. The urethral caliber was increased from 18.1 +/- 0.6 F. to 23.5 +/- 1.0 F. (P less than 0.005), average flow rate from 9.4 +/- 0.8 ml/sec to 11.2 +/- 1.1 ml/sec (P less than 0.025) and maximum urethral pressure with a full bladder decreased from 105.4 +/- 9.4 cmH2O to 87.5 +/- 10.5 cmH2O (P less than 0.05). With gradual urethral dilatation with metal sounds, (1) the urethra was significantly dilated, (2) maximum urethral pressure was significantly decreased and (3) average flow rate was significantly increased.