[Development of reflux esophagitis after H. pylori eradication therapy].

Several studies showed that H. pylori infection is significantly lower in reflux esophagitis (RE) patients than in elder asymptomatic controls in Japan. It is well known that H. pylori infection induces corporal atrophic gastritis, and suppresses gastric acid secretion. In the other words, H. pylori infection shows a negative association with the development of RE. The relative lack of corpus gastritis might play a role in the pathogenesis of RE through preservation of the acid secretion area. Meanwhile, the occurrence of RE after H. pylori eradication was first report;e' in Europe in 1997. However, no consensus has been reached on whether H. pylori eradication leads to the onset of a de-novo RE. Eradication of H. pylori infection may be a risk factor for de-novo RE, especially in Asian populations. The presence of hiatal hernia and corpus gas- tritis are closely related to the development of RE after H. pylori eradication. RE, which develops after H. pylori eradication, rarely becomes a long-term clinical problem among patients who complete therapy successfully.