任何机械性,化学性及微生物的损伤均可引起食管炎,但食管炎的主要原因还是由于胃、肠内容物的返流,因此仅就返流性食管炎作一介绍。一、定义凡是由于胃或肠内容物的返流而引起的食管下段粘膜炎症,即称为返流性食管炎。因此,实质上它是属于化学性损伤而引起的一种食管炎。二、病因和发病原理由于抗返流屏障的失常和食管蠕动机能的障碍,胃或肠内容物返流入食管。胃液中 Any mechanical, chemical and microbial damage can cause esophagitis, but the main reason for esophagitis is due to the reflux of stomach and intestinal contents, so only an introduction of reflux esophagitis. First, the definition of any stomach or intestinal reflux caused by the lower esophageal mucosal inflammation, known as reflux esophagitis. Therefore, in essence, it is a kind of esophagitis caused by chemical damage. Second, the etiology and pathogenesis due to anti-reflux barrier disorders and dysfunction of esophageal motility, stomach or intestinal contents reflux into the esophagus. Gastric juice