Redo transanal endorectal pull-through: a preliminary study.

The aim of this study is to evaluate the safety and efficacy of the redo transanal endorectal pull-through (TEPT) for patients with persistent symptoms after pull-through for Hirschsprung's disease (HD). Seven children were included in the study, their ages ranged from 2.5 to 6 years (four males and three females). They presented with persistent obstructive symptoms after pull-through for HD, which was remediated with redo TEPT. Indications were persistent constipation, anastomotic stricture unresponsive to dilatation with or without attacks of enterocolitis. Mean follow-up period was 12 months (ranged from 8 to 16 months). Obstructive symptoms were relieved in all patients with no soiling throughout the period of follow-up. Enterocolitis developed once in two patients who responded to conservative management after hospitalization. There were no deaths and anastomotic leakage, persistent stricture and cuff abscess did not develop in our series. EMG mapping of the external anal sphincter showed a good resting and powerful squeezing pressure curve. Redo TEPT is a useful alternative procedure for persistent symptoms of HD, and it appears to be safe and effective.