Bowen L W, Sand P K, Ostergard D R, Franti C E
Department of Obstetrics and Gynecology, University of California, Irvine.
Am J Obstet Gynecol. 1989 Feb;160(2):452-8. doi: 10.1016/0002-9378(89)90471-7.
A retrospective comparison was made of the urodynamic parameters of urethral sphincteric function of 21 women with failure of modified Burch retropubic urethropexy and 21 matched control subjects in whom operation was successful. The match criteria included multiple risk factors that contributed to the failure of antiincontinence surgery. The preoperative resting urethral closure pressure and urethral functional length were significantly lower in the study (failure) group than in the control (success) group. These parameters of intrinsic urethral function improved only in the control (success) group after operation. Further study showed that 17 of the 21 patients (81%) in the control (success) group had preoperative closure pressure greater than 20 cm H2O, whereas only five of the 21 patients (24%) in the study (failure) group had initial closure pressure higher than this value. Identification of a low-pressure urethra by preoperative urethral profilometry suggests a greatly increased risk for operative failure.
对21例改良Burch耻骨后尿道悬吊术失败的女性患者和21例手术成功的匹配对照者的尿道括约肌功能尿动力学参数进行回顾性比较。匹配标准包括导致抗尿失禁手术失败的多种风险因素。研究（失败）组术前静息尿道闭合压和尿道功能长度显著低于对照（成功）组。这些尿道固有功能参数仅在对照（成功）组术后得到改善。进一步研究表明，对照（成功）组21例患者中有17例（81%）术前闭合压大于20 cm H2O，而研究（失败）组21例患者中只有5例（24%）初始闭合压高于此值。术前尿道压力测定显示尿道压力低提示手术失败风险大大增加。
