ABSTRACT
Pathology of Hirschsprung's disease is a ganglionic colon, and the most common symptoms is chronic constipation. Surgical intervention started with stages pull-through from last decades, but since 1980, many pediatric surgeons have performed on stage pull-through with excellent results. From 1992 to 1998, 40 patients with Hirschsprung's disease who were divided into 2 patient groups [20 patients in each group] operated with different stages [Swenson] and one-stage pull through procedures in Mofid children's hospital and the results of these 2 procedures were compared with each other. 6 years evaluation reveals one stage pull-through takes less time, has less cost, short staying in hospital, less complications and earlier recovery than stages procedures. One stage pull-through in HD is a safe and effective procedure, but most important point is patient selection