[The digestive activity of the chymus in the gastric stump in postgastrectomy peptic ulcers].

Forty-two patients with postgastroresection peptic ulcers of the zone of gastrojejunal anastomoses were examined. The cause of the appearance of the ulcers was the action of aggressive content of the gastric stump on the jejunum in the area of anastomosis. "Vagal" peptic ulcers were found by the gastrocepin test. After operations reducing the stump acidity healing of all the ulcers was noted. In achlorhydria of the stump the digestion in it is realized due to reflux at the expense of pancreas proteinases.