[A comparative study of Billroth II and Roux-Y gastrojejunostomy. The mucosa of the gastric stump].

Thirty-five patients who had undergone gastric resection between two and five years earlier were included in the study. Digestive continuity had been achieved in 18 cases using the BII method, and in 17 using a Roux en Y loop. Vagotomy was not performed in any patient. All patients were assessed using endoscopy and multiple biopsies of the gastric mucous were taken. No postoperative peptic ulcers were observed. Mucous close to the stoma appeared to be hyperemic and edematous in 16 of the patients who underwent gastric resection using the BII method and in 5 of those in whom a Roux en Y loop was used. In BII patients, the histological analysis of endoscopic biopsies revealed mucous alterations in 94.4% of cases, and the most frequent finding was chronic atrophic gastritis; in the Roux en Y patients signs of inflammation were only observed in 58.8% of patients and in the majority of cases it was limited to superficial chronic gastritis.