Six patients with alkaline reflux gastritis postoperative were treated between 1977 and 1984 by Roux-en-Y diversion. All of the patients had a typical history of mild epigastric burning pain and bilious vomiting. The diagnosis was reached by endoscopic results of the gastric mucosa. The pain, complaints and the macroscopically apparent gastritis subsided completely after surgery but the histological manifestations of gastritis improved though no disappear. In four cases we used the Roux-en-Y procedure; in two, the Henley jejunal loop with the Soupault-Bucaile, technique. All patients were vagotomized for the fear recurrent peptic ulceration if increased the acid secretion. One patient was most complex because after derivation with Roux-en-Y developed severe diarrhea and was necessary to change to loop jejunal Henley and reversed 10 centimeter the jejunal loop at 1 meter from Treitz angle.