摘要
目的 研究直肠腔内超声(endorectal uhrasonography,ERUS)评估大便失禁患者肛管括约肌缺损的临床应用价值.方法 回顾性分析因大便失禁入院治疗的80例患者临床病例资料,记录肛管括约肌超声影像特点,与手术结果对照,观察ERUS在肛管括约肌缺损中的诊断价值,探讨肛管括约肌受损程度与肛门功能的相关性.结果 ERUS诊断肛管内括约肌(IAS)缺损准确率为92.11%,误诊率5.26%,漏诊率7.89%.IAS损伤ERUS可见低回声环变薄,肛管外括约肌(EAS)缺损则表现为高回声环变薄.男女患者间IAS厚度有显著性差异(P<0.05).男女患者间EAS皮下部厚度无显著性差异(P> 0.05).肛门缺损与肛门功能评分呈显著负相关性(R2=0.819).结论 ERUS用于大便失禁患者肛门括约肌缺损诊断准确率高,能准确反映缺损部位和范围,对指导临床根治手术具有重要意义.
Abstract
Objective To study the value of transrectal ultrasound (ERUS) in evaluation of anal sphincter defects in patients with fecal incontinence.Methods The clinical data of 80 patients with fecal incontinence were retrospectively analyzed.The ultrasonographic features of anal sphincter were recorded and compared with the operation results and the diagnostic value of ERUS in anal sphincter defect.The correlation between the degree of anal sphincter damage and anal function was investigated.Results The accurate rate of ERUS diagnosis of anal sphincter defects was 92.11%,the misdiagnosis rate 5.26%,the rate of missed diagnosis 7.89%.The anal sphincter of ERUS showed that the hypoechoic rings become thinner.The external anal sphincter defect showed that high echo ring thinning.There was a significant difference in male and female patients of IAS thickness (P < 0.05).There was no significant difference between male and female patients in EAS skin thickness (P > 0.05).The anal defect and the anal function score showed significant negative correlation (R2 =0.819).Conclusion ERUS has high diagnostic accuracy for fecal incontinence anal sphincter defect.ERUS can accurately reflect the location and scope of the defect and to indicate the clinical curative effect of radical surgery.