Leach G E, Yip C M, Donovan B J
Urology. 1987 Mar;29(3):328-31. doi: 10.1016/0090-4295(87)90085-9.
Twenty females with genuine stress urinary incontinence who underwent modified Pereyra bladder neck suspension were urodynamically studied pre- and postoperatively in an attempt to determine the mechanism by which continence was restored. Detailed analysis demonstrated no significant change comparing the pre- and postoperative cystometry findings, uroflow parameters, maximal voiding pressure, urethral resistance, maximal urethral closure pressure, or functional urethral length. The only significant change identified as a result of the surgical procedure was an alteration of proximal urethral pressure transmission during stress from negative to positive gradients. It is concluded that the modified Pereyra bladder neck suspension restores continence by restoring proper urethral support with restoration of positive pressure transmission to the proximal urethra without causing outflow obstruction, changing functional length, or altering maximal urethral closure pressure.
对20例接受改良佩雷拉膀胱颈悬吊术的真性压力性尿失禁女性患者进行了术前和术后尿动力学研究，以确定恢复控尿的机制。详细分析表明，术前和术后的膀胱测压结果、尿流参数、最大排尿压力、尿道阻力、最大尿道闭合压力或功能性尿道长度相比均无显著变化。手术过程中唯一显著的变化是在应激状态下近端尿道压力传递从负梯度变为正梯度。得出的结论是，改良佩雷拉膀胱颈悬吊术通过恢复适当的尿道支撑，恢复向近端尿道的正压传递，而不引起流出道梗阻、改变功能长度或改变最大尿道闭合压力，从而恢复控尿。
