肛门内超声检查在特发性大便失禁评估中的重要性。

The importance of anal endosonography in the evaluation of idiopathic fecal incontinence.

作者信息

Emblem R, Dhaenens G, Stien R, Mørkrid L, Aasen A O, Bergan A

机构信息

Department of Surgery, National Hospital, University of Oslo, Norway.

出版信息

Dis Colon Rectum. 1994 Jan;37(1):42-8. doi: 10.1007/BF02047213.

DOI:10.1007/BF02047213

PMID:8287746

Abstract

PURPOSE

The aim of the study was to evaluate the use of anal endosonography in idiopathic incontinence.

METHODS

In 29 patients and 26 normal controls, the relationship between sonography images and physiologic parameters was studied.

RESULTS

External anal sphincter function, measured as fiber density by single-fiber electromyography (P = 0.0001) and pudendal nerve terminal motor latency (P = 0.04), was significantly impaired in patients with idiopathic incontinence compared with controls. Both the external and internal and sphincter could be identified by anal endosonography, and the thickness directly measured. The thickness of the external anal sphincter was significantly negatively correlated to muscle fiber density (r = -0.65, P = 0.002) and to pudendal nerve distal conduction velocity (r = -0.74, P = 0.008). The thickness of the internal anal sphincter was significantly correlated to resting pressure (r = -0.67, P = 0.0001).

CONCLUSION

The ratio between the thickness of the external and internal sphincter muscles measured on the sonography screen was significantly reduced in patients with neurogenic incontinence compared with controls (P < 0.01).

摘要

目的

本研究旨在评估肛门内超声检查在特发性尿失禁中的应用。

方法

对29例患者和26例正常对照者，研究超声图像与生理参数之间的关系。

结果

与对照组相比，特发性尿失禁患者的肛门外括约肌功能，通过单纤维肌电图测量的纤维密度（P = 0.0001）和阴部神经终末运动潜伏期（P = 0.04）显著受损。肛门内超声检查可识别肛门外括约肌和内括约肌，并直接测量其厚度。肛门外括约肌厚度与肌纤维密度显著负相关（r = -0.65，P = 0.002），与阴部神经远端传导速度显著负相关（r = -0.74，P = 0.008）。肛门内括约肌厚度与静息压力显著相关（r = -0.67，P = 0.0001）。