Table of Contents
ISRN Endoscopy
Volume 2013 (2013), Article ID 408931, 5 pages
Clinical Study

Influence of Helicobacter pylori Infection on the Small Intestinal Mucosa

Department of Gastroenterology, Dokkyo Medical University, Tochigi, Mibu 321-0293, Japan

Received 4 June 2013; Accepted 19 August 2013

Academic Editors: B. Braden, P. Figueiredo, and C. Romano

Copyright © 2013 Mitsunori Maeda et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Background/Aims. To investigate the role of Helicobacter pylori infection in the development of enteritis (small intestinal mucosal injury). Methodology. Between April 2007 and January 2013, 99 patients undergoing capsule endoscopy (CE) were tested for anti-H. pylori immunoglobulin G antibody (Hp-IgG) using an enzyme-linked immunosorbent assay (ELISA). None of the patients had been treated for H. pylori infection or diagnosed as having Crohn’s disease or any other clinically apparent small intestinal disorders prior to the CE. Results. The overall Hp-IgG-positive rate was 26.3%. The incidence of enteritis, as diagnosed by CE, tended to be lower in the Hp-IgG-positive patients (23.1%) than in the Hp-IgG-negative patients (38.4%) ( ). When patients receiving aspirin or nonsteroidal anti-inflammatory drugs (NSAIDs), well-known causes of enteritis, were excluded, the incidence of enteritis in the Hp-IgG-positive patients (11.7%) was significantly lower than that in the Hp-IgG-negative patients (43.7%) ( ). A binomial logistic regression analysis revealed a significant negative relationship between Hp-IgG positivity and the presence of enteritis in patients receiving neither aspirin nor NSAIDs ( ). Conclusions. Our data indicated that H. pylori positivity was inversely associated with the prevalence of enteritis.