van Venrooij G E, Blok C, van Riel M P, Coolsaet B L
J Urol. 1985 Sep;134(3):592-5. doi: 10.1016/s0022-5347(17)47307-1.
In 78 female patients the urethral leakage pressure, defined as the intravesical pressure at which leakage starts from the urethral orifice, was estimated with the tube-foil sleeve catheter. In accordance with the definition of maximum urethral closure pressure, the relative urethral leakage pressure was defined as urethral leakage pressure minus intravesical resting pressure. In the same patients urethral closure pressure was also measured by urethral pressure profilometry with a flexible micro pressure-sensor catheter. On the average the ratio of relative urethral leakage pressure/urethral closure pressure was about 0.5. Relative urethral leakage pressure and urethral closure pressure were higher than the maximum detrusor pressure increases during detrusor instabilities in 21 continent patients with motor urge. The relative urethral leakage pressure correlated better with the detrusor pressure elevations at which fluid loss from the urethral orifice started in 24 motor urge incontinent patients than urethral closure pressure did.
在78名女性患者中，使用管箔套囊导管估计尿道漏尿压力，该压力定义为尿道外口开始漏尿时的膀胱内压力。根据最大尿道闭合压力的定义，相对尿道漏尿压力定义为尿道漏尿压力减去膀胱内静息压力。在同一批患者中，还使用柔性微压力传感器导管通过尿道压力描记法测量尿道闭合压力。相对尿道漏尿压力与尿道闭合压力的比值平均约为0.5。在21名有运动性尿急的控尿患者中，相对尿道漏尿压力和尿道闭合压力高于逼尿肌不稳定期间逼尿肌压力的最大增加值。在24名运动性尿急尿失禁患者中，相对尿道漏尿压力与尿道外口开始出现液体流失时的逼尿肌压力升高的相关性比尿道闭合压力更好。
