Pyloric stenosis: organic or functional? The need for an intraoperative test in peptic ulcer surgery

A new method to evaluate and dilate pyloric stenosis in the presence of peptic ulcer is presented. The pylorus is explored by means of a probe (26 to 38 Ch) which is inserted orogastrically. This procedure is used in association with highly selective vagotomy (HSV). Healing of the ulcer and the pyloric stenosis was observed in 12 patients.