胃食管反流病是指过多胃十二指肠内容物反流食管引起烧心等症状 ,导致食管炎和咽、喉、气管组织损伤。人群中 7%～15 %有胃食管反流症状 ,发病随年龄增长而增加。在慢性消化不良中胃食管反流病是常见病症之一。近年来已公认反流性食管炎是食道下段正常复层鳞状粘膜被柱状粘膜取 Gastroesophageal reflux disease is too much gastroduodenal reflux reflux esophagus caused by heartburn and other symptoms, leading to esophagitis and pharynx, larynx, tracheal tissue injury. 7% to 15% of the population have gastroesophageal reflux symptoms, the incidence increases with age. Gastroesophageal reflux disease is one of the common conditions in chronic dyspepsia. In recent years, it has been recognized that reflux esophagitis is the lower esophagus normal stratified squamous mucosa by the columnar mucosa