VARIOUS surgical procedures for the complications of duodenal ulcer are frequently being re-evaluated. Pyloroplasty and vagotomy is one of these, and the first 110 consecutive operations performed at the Memorial Hospital, Worcester, form the basis of this report. The appeal of this procedure is a stomach intact and in continuity. Theoretically, the cephalic phase of gastric stimulation is muted or abolished by truncal vagotomy. Pyloroplasty, which destroys the function of the pylorus but encourages easy gastric emptying, prevents antral stimulation by stasis and the ensuing local pressure. The stomach, as far as can be determined in most cases, is undiseased . . .