Ano-rectal function assessed by manometry and electromyography after endorectal pull-through for Hirschsprung's disease.

Since 1975 the endorectal pull-through operation for Hirschsprung's disease has been favoured in this department. Out of 16 patients, 12 were examined 8 months to 6 years later by ano-rectal manometry and external sphincter electromyography. The results indicate a normal postoperative rectal capacity and rectal sensibility. There was no internal sphincter relaxation in response to a rectal distention. Resting and reflex activity of the external and sphincter were normal.