Kock's pouch converted to a pelvic pouch. Report of a case.

This study reports a patient previously operated upon with proctocolectomy and construction of a continent ileostomy (Kock pouch). The sphincter muscles, which were preserved by using the mucosal proctectomy technique, were used for conversion to a pelvic pouch five years later. The functional result was satisfactory and superior to that commonly seen in an average J-pouch patient. Patients with a continent ileostomy and in whom the rectum or sphincters have been preserved may be easily converted to a pelvic pouch, should they wish. Patients in whom a short mesentery prevents construction of a pelvic pouch, may be recommended a continent ileostomy as a temporary measure. Due to subsequent expansion of the reservoir, a restorative ileopouch-anal anastomosis may be possible at a later date. The good functional result in this case implies that the double folded reservoir according to Kock's original technique exhibits the same unique reservoir properties even when employed for an ileopouch-anal anastomosis.