[The importance of drainage and the postoperative interval in truncal vagotomy for the prevention of stress ulcers in rats].

The effectiveness of truncal vagotomy to prevent stress ulcers was examined in rats. Truncal vagotomy protects safely from stress ulcer caused by immobilization. This protection continues for a longer postoperative period. After vagotomy, even repeated immobilizations cause no ulcer. There are no different results after truncal vagotomy with or without drainage operation.