[Occurrence of upper gastrointestinal tract disease after Helicobacter pylori eradication].
Helicobacter pylori infection is recognized to be a pathogen of various gastroduodenal disease. Eradication therapy of H. pylori reduces the recurrence of gastro-duodenal ulcer, improves histological gastritis, and is suggested to act a certain role in protection against gastric carcinogenesis. Although, several studies show uncomfortable results arise after H. pylori infection was cured. These studies suggest that gastro-esophageal reflux disease (GERD) and gastro-duodenal erosion may increase after successful eradication of H. pylori. Recently, adenocarcinoma of the gastric cardia and esophagus increase in incidence. Reflux esophagitis and Barrett's esophagus are recognized as precancerous lesion of esophageal adenocarcinoma. It is uncertain the association of newly occurrence of GERD after H. pylori eradication and increase of esophageal adenocarcinoma. GERD may cause adenocarcinoma development, though long term observations is necessary after H. pylori eradication.
Department of General Medicine, Oita Medical University.
Masaaki
M
Kodama
Noriko
N
Nomura
Jiro
J
Kagawa
Toshio
T
Fujioka
Kazunari
K
Murakami
Ryugo
R
Sato
D000230:Adenocarcinoma / Q000453:epidemiology / Q000209:etiology; D004378:Duodenal Diseases / Q000453:epidemiology / Q000209:etiology*; D004938:Esophageal Neoplasms / Q000453:epidemiology / Q000209:etiology; D005764:Gastroesophageal Reflux / Q000453:epidemiology / Q000209:etiology*; D016481:Helicobacter Infections / Q000188:drug therapy*; D016480:Helicobacter pylori; D006801:Humans; D013274:Stomach Neoplasms / Q000453:epidemiology / Q000209:etiology