Department of Visceral Surgery, University Hospitals of Geneva, Geneva, Switzerland.
Colorectal Dis. 2011 Aug;13(8):e234-7. doi: 10.1111/j.1463-1318.2011.02645.x.
The study aimed to determine the accuracy of measurement of puborectal contraction, measured by perineal ultrasound during anal voluntary contraction in patients with incontinence.
Puborectalis sling contraction in 32 consecutive patients investigated for faecal incontinence was determined by two examiners on two occasions (four measurements per patient). The examiners were blinded to each other's results.
The mean anterior movement of the puborectalis sling was between 11 and 12 mm for both examiners on both occasions. The global intraclass correlation coefficient for examiners and occasions together was 0.92. The absolute agreement on the movement exceeding or not 8 mm was 87.5% (28 of 32), and the corresponding κ statistic was 0.84. The differences between the two experts were minimal.
The study confirms the reliability of puborectalis sling contraction measurement and its value as a preoperative predictive tool to assess the prognosis of sphincter repair for postdelivery faecal incontinence.
本研究旨在确定在肛门自主收缩期间通过会阴超声测量肛提肌收缩时失禁患者测量结果的准确性。
对 32 例因粪便失禁而接受调查的患者进行肛提肌吊带收缩测量，由两位检查者在两次（每位患者四次测量）时进行。检查者彼此的结果是盲法的。
两位检查者在两次检查时，肛提肌吊带的平均前向运动均为 11-12mm。检查者和检查时的总体组内相关系数为 0.92。运动超过或不超过 8mm 的绝对一致性为 87.5%（32 例中的 28 例），相应的κ统计量为 0.84。两位专家之间的差异很小。
该研究证实了肛提肌吊带收缩测量的可靠性及其作为预测产后粪失禁括约肌修复预后的术前工具的价值。
