Gastric and intestinal mucosal morphology before and after interposition of a reflux-preventing valve between the gastric remnant and the duodenum. An experimental study in dogs.
A gastric mucosal reaction characterized by inflammatory cells and oedema in the lamina propria and proliferation of surface epithelium was found in 5 out of 12 dogs subjected to partial gastrectomy and examined 1-6 months after the operation. A normal gastric mucosa was found in 14 dogs 1-12 months after interposition of a reflux-preventing valve between the gastric remnant and the duodenum. In 4 dogs with histologically verified gastritis after partial gastrectomy, transposition of a jejunal segment provided with an intussusception valve resulted in normalization of the gastric mucosal morphology.
D000818:Animals; D001655:Bile Reflux / Q000517:prevention & control*; D001660:Biliary Tract Diseases / Q000517:prevention & control*; D004285:Dogs; D004386:Duodenum / Q000601:surgery; D005260:Female; D005743:Gastrectomy / Q000379:methods*; D005753:Gastric Mucosa / Q000473:pathology*; D007413:Intestinal Mucosa / Q000473:pathology*; D007583:Jejunum / Q000601:surgery*; D008297:Male