Bautista Casasnovas A, Varela Cives R, Villanueva Jeremias A, Castro-Gago M, Cadranel S, Tojo Sierra R
Pediatrics Department, Hospital General de Galicia, University of Santiago of Compostela, Spain.
J Pediatr Gastroenterol Nutr. 1991 Jul;13(1):42-5. doi: 10.1097/00005176-199107000-00008.
Transit times through the whole colon and its segments were measured in 10 healthy children and 14 children suffering constipation secondary to myelomeningocele. The subjects ingested radio-opaque markers on three successive days, and on the fourth a plain abdominal roentgenogram was taken using fast film. In the healthy children, total colonic transit time (mean +/- SD) was 37.8 +/- 6.2 h, with segmental times of 10.8 +/- 3.5 h for the right colon, 12.2 +/- 2.7 h for the left, and 14.7 +/- 2.1 h for the rectosigmoid; upper normal limits of 17.8 h for the right colon, 17.6 h for the left, 19.1 h for the rectosigmoid, and 50.2 h for the total colonic transit time were established. In the constipated children, the total transit time was 59.9 +/- 5.4 h, with segmental times of 15.9 +/- 2.3 h for the right colon, 18.9 +/- 2.3 h for the left, and 25.0 +/- 2.6 h for the rectosigmoid. The technique described is simple, is easy to use in clinical practice, and involves a lower radiation dose than other methods. It may prove useful for measurement of colonic transit time in suitable patients.
对10名健康儿童和14名继发于脊髓脊膜膨出的便秘儿童测量了通过整个结肠及其各段的运输时间。受试者连续三天摄入不透X线的标志物，第四天使用快速胶片拍摄腹部平片。在健康儿童中，结肠总运输时间（均值±标准差）为37.8±6.2小时，右半结肠的分段时间为10.8±3.5小时，左半结肠为12.2±2.7小时，直肠乙状结肠为14.7±2.1小时；确定了右半结肠的正常上限为17.8小时，左半结肠为17.6小时，直肠乙状结肠为19.1小时，结肠总运输时间为50.2小时。在便秘儿童中，总运输时间为59.9±5.4小时，右半结肠的分段时间为15.9±2.3小时，左半结肠为18.9±2.3小时，直肠乙状结肠为25.0±2.6小时。所描述的技术简单，在临床实践中易于使用，且辐射剂量低于其他方法。它可能被证明对合适的患者测量结肠运输时间有用。
