Helicobacter pylori is not a risk factor for gastrooesophageal reflux
and oesophagitis, and there are arguments suggesting that H. pylori ma
y actually protect against gastro-oesophageal reflux disease. Gastrooe
sophageal reflux disease patients are less often infected with H. pylo
ri than controls. If infected, they may have less severe gastro-oesoph
ageal reflux disease, and H. pylori infected duodena[ ulcer patients w
ithout gastro-oesophageal reflux disease are potentially at risk of de
veloping gastrooesophageal reflux disease after eradication of the org
anism, In addition, H. pylori also affects the management of gastro-oe
sophageal reflux disease. H. pylori eradication may decrease the acid-
lowering capacity of proton pump inhibitors and H2 receptor antagonist
s, and it could induce or aggravate gastro-oesophageal reflux. Proton
pump inhibitor treatment of gastro-oesophageal reflux disease may be a
ssociated with an accelerated development of atrophic gastritis in H.
pylori positive patients, suggesting that H. pylori should be diagnose
d and eradicated in these patients, The role of H. pylori in duodenoga
stric reflux remains controversial.