Swift S E
Department of Obstetrics and Gynecology, Medical University of South Carolina, Charleston, USA.
Obstet Gynecol. 1997 May;89(5 Pt 1):708-12. doi: 10.1016/s0029-7844(97)00098-7.
To determine if a cystometrogram performed using the intrauterine pressure channel of a fetal monitor can be used to screen for detrusor instability in women undergoing evaluation for urinary incontinence.
Sixty-six women with primary complaints of urinary incontinence were randomized to have a cystometrogram performed at their initial visit with a multichannel electronic cystometer or with the intrauterine pressure channel of a fetal monitor. Subjects underwent a second cystometrogram 1-4 weeks later with the alternative technique. The results were analyzed with chi 2 analysis and correlation coefficients.
Twenty-two subjects had detrusor instability diagnosed by the multichannel electronic cystometer. The fetal monitor cystometrogram was 91% sensitive and 86% specific in detecting detrusor instability, and had a 77% positive predictive value and a 95% negative predictive value. The correlation coefficients between the two examinations for bladder volume at first sensation, maximum capacity, volume at first contraction, and intensity of uninhibited detrusor contraction were r = 0.51, r = 0.69, r = 0.87, and r = 0.79, respectively; all of these were statistically significant.
The intrauterine pressure channel of a fetal monitor can be used reliably to perform a cystometrogram to screen for detrusor instability in patients presenting with complaints of urinary incontinence.
确定使用胎儿监护仪的宫内压力通道进行膀胱测压图检查是否可用于筛查因尿失禁接受评估的女性逼尿肌不稳定情况。
66名以尿失禁为主诉的女性被随机分为两组,一组在初次就诊时使用多通道电子膀胱测压仪进行膀胱测压图检查,另一组使用胎儿监护仪的宫内压力通道进行检查。受试者在1 - 4周后用另一种技术进行第二次膀胱测压图检查。结果采用卡方分析和相关系数进行分析。
22名受试者经多通道电子膀胱测压仪诊断为逼尿肌不稳定。胎儿监护仪膀胱测压图在检测逼尿肌不稳定方面的敏感性为91%,特异性为86%,阳性预测值为77%,阴性预测值为95%。两次检查在首次感觉膀胱容量、最大容量、首次收缩时的容量以及逼尿肌无抑制收缩强度方面的相关系数分别为r = 0.51、r = 0.69、r = 0.87和r = 0.79;所有这些均具有统计学意义。
胎儿监护仪的宫内压力通道可可靠地用于进行膀胱测压图检查,以筛查有尿失禁主诉的患者的逼尿肌不稳定情况。