Proximal gastric vagotomy: interim results of a randomized controlled trial.

In a randomized controlled trial 50 patients with duodenal ulcer treated by proximal gastric vagotomy (P.G.V.) without drainage were compared with 50 who underwent selective vagotomy and gastrojejunostomy. The clinical results were assessed in 99 patients one to four years after operation. Patients who had undergone P.G.V. had significantly less dumping, nausea, and bile vomiting and fared better in their overall clinical grading. The postoperative Visick grading of the 50 patients with P.G.V. was similar to that of 56 controls with no known gastrointestinal disease who had not undergone operation. The results obtained in the patients who had had P.G.V. without drainage were compared with those of a further group of 24 patients subjected of P.G.V. with gastrojejunostomy, and the better results obtained in the former group were thought to be due to elimination of the drainage procedure. The average follow-up period of the trial was just over two years, but there were no indications that the recurrent ulceration rate after P.G.V. would be any higher than after other types of vagotomy and drainage.