Barrett's esophagus.

Abstract

A new stimulus for research into the etiology and pathogenesis of Barrett's columnar-lined lower esophagus has been provided by the discovery that Barrett's esophagus has a very high prevalence in the general population and that adenocarcinoma of the esophagus and cardia is the fastest-growing cancer in the United States. Gastroesophageal reflux disease is the single most important factor in the pathogenesis of Barrett's esophagus, and duodenal juices may play a key role in the development of complications of stricture, ulceration, and possibly even malignant degeneration. Treatment is, therefore, aimed at abolishing all forms of reflux. Acid suppression, if used, needs to be given in massive doses to be effective in gastric hypersecretion and has no effect on other constituents of the refluxed material. Antireflux surgery has been shown to be superior to all forms of medical treatment. Regression is rare after any therapy, but continued surveillance is essential, with increased vigilance in patients with dysplasia or DNA abnormalities on flow cytometry. The role of cigarettes and alcohol in malignant degeneration is refuted.