Barrett's esophagus is the abnormal esophageal columnar epithelium of the coverage. In clinical practice was particularly prevalent in the elderly. Incidence of Barrett's esophagus found in men, the ratio for men and women is 3:1. Barrett metaplasia is the most common causes or precursor of esophageal cancer. Symptoms and complications are mainly caused by gastroesophageal reflux and gastroesophageal reflux symptoms of substernal burning sensation, chest pain and nausea phenomenon.
Barrett esophagus is acquired, and reflux esophagitis is closely related to, and the possible occurrence of adenocarcinoma. In 1950 the first Norman Barrett, confirmed in 1957. Endoscopic diagnosis of Barrett esophagus is generally considered to be away from the esophagus and stomach at least 3cm above the interface of the columnar epithelium Department coverage, Barrett esophagus can be said. Barrett esophagus is a congenital, due to fetal development period, after esophageal columnar epithelium was squamous cell alternative. Residual ectopic columnar epithelium in the esophagus can occur in any part of the esophagus.