Efectos del bypass gástrico en el esófago de Barrett de pacientes con obesidad mórbida

background: besides the weight reducing effects of gastric bypass, it is also a good antireflux procedure since there is no acid production by the gastric pouch and there is no duodenal reflux due to the presence of a roux en y. aim: to describe the effect of gastric bypass on barrett esophagus among patients with morbid obesity. material and methods: among 896 patients subjected to gastric bypass, 14 patient with a barrett esophagus diagnosed with endoscopy and biopsy, were followed. a new endoscopy was performed one to 30 months after the surgical procedure. results: short (< = 30 mm) and long segment (> = 31 mm) barrett esophagi were present in eight and six patients, respectively. gastroesophageal reflux symptoms relieved in 70% of these cases in a mean lapse of 6.5 months. there was regression from intestinal metaplasia to car-dial mucosa in six patients (75%) with short-segment, and in one patient (16%) with long-segment barrett esophagus. conclusions: gastric bypass in patients with morbid obesity and barrett esophagus is a very good antireflux operation. this was proved by the disappearance of symptoms in almost all patients and by the regression of the intestinal metaplasia which is time and length dependent.