Emblem R, Diseth T, Mørkrid L, Stien R, Bjordal R
Department of Pediatric Surgery, National Hospital, University of Oslo, Norway.
J Pediatr Surg. 1994 Mar;29(3):447-51. doi: 10.1016/0022-3468(94)90589-4.
Sixteen patients aged 12 to 16 years (mean, 14.9) with corrected low anorectal anomalies, and eight age-matched controls were studied. Eight patients were totally continent, six had staining, and two had fecal soiling. Half the patients had trouble with constipation. The grade of incontinence was related to significantly reduced resting and squeeze pressure in the anal canal. Girls had significantly worse results than boys. The anal sphincter muscle complex was visualized by anal endosonography, and images of the external anal sphincter corresponded to the results of the surface electromyography. In addition, anal endosonography provided a detailed picture of all perianal structures including the internal anal sphincter. Anal endosonography supplements other imaging techniques for assessing the perianal structures in patients who have an accessible anal canal.
对16例年龄在12至16岁（平均14.9岁）的低位肛门直肠畸形矫正患者以及8例年龄匹配的对照者进行了研究。8例患者完全能自主控制排便，6例有污粪现象，2例有大便失禁。一半患者有便秘问题。失禁程度与肛管静息压和收缩压显著降低有关。女孩的结果明显比男孩差。通过肛门腔内超声检查可显示肛门括约肌复合体，肛门外括约肌的图像与表面肌电图结果相符。此外，肛门腔内超声检查还能提供包括肛门内括约肌在内的所有肛周结构的详细图像。肛门腔内超声检查可补充其他成像技术，用于评估肛管可及的患者的肛周结构。
