It is unclear whether Helicobacter pylori infection is essential to the development of peptic
ulcers. In this study, we examined the rates of H. pylori-negativity among patients with peptic …

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 …

Forty-eight patients with endoscopically proven duodenal ulcer (DU) and Helicobacter pylori
infection detected by 14C-urea breath test (BT) were assigned to 5 days of treatment with …

Objectives Recent studies have suggested that the prevalence of Helicobacter pylori
infection in patients with ulcer disease who were not using non-steroidal anti-inflammatory …

Abstract Background and Aim: The prevalence of Helicobacter pylori‐negative duodenal
ulcer (DU) is increasing in Western countries but is rare in Japan. We aimed to examine the …

Objective: To identify demographic and endoscopic characteristics of patients with
Helicobacter pylori positive and negative chronic peptic ulcer disease. Design: Cross …

Background: Our aims were 1) to study the influence of several factors (age, sex, smoking,
previous ulcer disease, ulcer size, chronic gastritis, serum gastrin and pepsinogen I levels …

Background: Several authors have reported low prevalence of Helicobacter pylori infection
in patients with upper gastrointestinal bleeding (UGIB). Our aim was to study the prevalence …

ABSTRACT BACKGR0UND/AlMS: The aim of our study was to evaluate the clinical course
of disease in 63 duodenal ulcer (DU) patients during a 4-year follow-up after Helicobacter …

Results The mean age of patients with H. pylori-negative DU was 60.3 years (20-87). Among
the 66 H. pylori-negative DU patients, 34 (51.5%) had reported use of NSAID/aspirin, 24 …