Loening-Baucke V A
J Pediatr Surg. 1983 Oct;18(5):595-600. doi: 10.1016/s0022-3468(83)80368-6.
An esophageal pressure transducer with three strain gauges was used in the anal canal to study the rectosphincteric reflex (RSR) in five infants and children with intestinal obstruction, 142 children age one day to 18 years with moderate to severe constipation and in 18 healthy control children 4 to 12 years of age. The RSR was present in the four newborns with intestinal obstruction in 133 of the constipated children, and in all healthy controls. The mean (+/- SD) minimal volume of air in the rectal balloon required to produce RSR greater than or equal to 5 mm Hg (RSRT) was 9 mL (+/- 2) for infants 0 to 2 years, 14 mL (+/- 4) for children 2 to 4 years, 15 mL (+/- 6) for children 4 to 12 years, and 14 mL (+/- 6) for children 12 to 18 years of age. The RSRT for control children was 13 mL (+/- 4). The volume of air used in rectal balloon distension correlated with the amplitude of the RSR for control (r = 0.7131) and constipated children (r = 0.6289). The amplitudes of the RSR for the controls were significantly higher than the amplitudes for constipated children for rectal distension volumes between 60 and 15 cc (p less than 0.01). The 10 children with absent RSR had Hirschsprung's disease confirmed at surgery. Measurements of RSR could be used to separate patients with chronic constipation from patients with Hirschsprung's disease.
使用带有三个应变片的食管压力传感器在肛管中研究5例患有肠梗阻的婴幼儿和儿童、142例年龄从1天至18岁的中重度便秘儿童以及18例4至12岁健康对照儿童的直肠括约肌反射（RSR）。患有肠梗阻的4例新生儿、133例便秘儿童以及所有健康对照儿童均存在RSR。产生大于或等于5 mmHg的RSR（RSRT）所需直肠气囊中的平均（±标准差）最小空气量，0至2岁婴儿为9 mL（±2），2至4岁儿童为14 mL（±4），4至12岁儿童为15 mL（±6），12至18岁儿童为14 mL（±6）。对照儿童的RSRT为13 mL（±4）。直肠气囊扩张所用空气量与对照儿童（r = 0.7131）和便秘儿童（r = 0.6289）的RSR幅度相关。对于60至15 cc的直肠扩张量，对照儿童的RSR幅度显著高于便秘儿童（p < 0.01）。10例无RSR的儿童在手术中确诊为先天性巨结肠。RSR测量可用于区分慢性便秘患者和先天性巨结肠患者。
