[Effect of selective proximal vagotomy with and without pyloroplasty upon basal and food stimulated serum immunoreactive gastrin in patients with duodenal ulcer. (author's transl)].

The effect of selective proximal vagotomy (SpV) with (12 cases) and without (5 cases) pyloroplasty upon basal and food stimulated serum immunoreactive gastrin (IRG) was studied in duodenal ulcer patients. Following SpV, fasting serum IRG increased in all subjects; the increase was more pronounced in subjects whose postoperative insulin tests were negative. Postoperatively, the mean integrated IRG output over 2 hrs in response to a meal was significantly higher than the preoperative mean value in the 17 patients. Pyloroplasty had no effect upon the IRG response following a test meal.