Comparative Study
Journal Article
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Long-term outcome of bowel function for 110 consecutive cases of Hirschsprung's disease: Comparison of the abdominal approach with transanal approach more than 30years in a single institution - is the transanal approach truly beneficial for bowel function?

BACKGROUND: We compared the long-term outcomes of the bowel function (BF) in Hirschsprung's disease (HD) patients who underwent transanal endorectal pull-through (TA) with those who underwent the Soave-Denda (SD) procedure.

METHODS: Patient data were collected from 1984 to 2015 from 110 HD patients who underwent definitive diagnosis and operation. The follow-up data were analyzed retrospectively. BF was evaluated according to the evacuation score (ES) of the Japan Society of Anorectal Malformation Study Group at 3, 5, 7, 9, and 11years of age.

RESULTS: The operative procedures performed were as follows: SD: 71 (64.5%), TA: 38 (34.5%), and Duhamel: 1 (1.0%). We compared SD with TA. The ES improved chronologically after both procedures, and patients achieved satisfactory results at least 10years after operation. There was no significant difference in the total ES at all ages. The incontinence and frequency of bowel movement scores of TA patients were significantly lower than those of SD patients at several points.

CONCLUSION: TA is simple, less invasive, and adaptive for neonates and small infants. However, regarding the bowel function, TA is not always superior to SD. The surgical technique of TA must be improved according to a detailed understanding of the anatomy.

LEVEL OF EVIDENCE: Retrospective study - level III.

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