CONTINENT ILEOSTOMY IN DOGS - AN EXPERIMENTAL-STUDY OF ILEAL POUCHES USING A SIMPLE PROSTHETIC VALVE

A simple prosthetic valve constructed of fine Silastic tubing on the efferent limb of a modified Kock reservoir which was defunctionalized by diversion of the alimentary stream around the pouch by ileoileostomy, was evaluated in dogs. Pouches were studied at operation and postoperatively to determine the pressure of the valve and the pouch at the point of incompetency. In all 12 experiments a competent valve was constructed. Four early postoperative deaths were due to peritonitis, 2 associated with suture line leaks. The other animals were followed for 4-25 wk. Competency of the valve was observed with leak pressures of 15-90 mm Hg and most valve pressures were in the range of 100-400 mm Hg. Variable degrees of chronic fibrosis and migration of valve elements were noticed at autopsy.