Aliment Pharmacol Ther 30, 791–815 Summary Background Helicobacter pylori infection
rates in duodenal ulcer (DU) patients may be lower than previously estimated. Aim To …

OBJECTIVE: The proportion of Helicobacter pylori–negative duodenal ulcer disease
appears to be increasing. Data on clinical outcome and prognosis in this subgroup are …

METHODS: Patients with an endoscopic diagnosis of duodenal ulcer between 1996 and
2002 were included in the present study. Patients were considered to be negative for H …

The prevalence of H. pylori infection has beenreported to be very high in duodenal ulcer
(DU) disease, but the precise frequency and causes of H. pylori-negative DU are not well …

The role of Helicobacter pylori in the pathogenesis of duodenal and gastric ulcer and ulcer
recurrence is widely known. Bleeding, perforation, and obstruction represent the most …

Most patients with chronic duodenal ulcer (DU) craters have gastritis associated with
Helicobacter pylori (HP), now thought to be the major cause of DU. A smaller proportion of …

Helicobacter pylori (H. pylori) has a role in the multifactorial etiology of peptic ulcer disease.
A link between H. pylori infection and duodenal ulcer disease is now established. Other …

OBJECTIVES: Published studies have estimated the rate of Helicobacter pylori (H. pylori)
infection in patients with duodenal ulcer disease to be as high as 95%; the majority of …

Peptic ulcer disease (PUD) has been described in the absence of Helicobacter pylori (Hp)
infection, suggesting that different factors are involved in its etiopathogenesis. We …

Abstract purpose, patients, and methods: Helicobacter pylori (HP) is present in more than
90% of duodenal ulcers (DUs). To investigate the pathophysiology in those patients with DU …