Chronic atrophic antral gastritis and risk of metaplasia and dysplasia in an area with low prevalence of Helicobacter pylori (original) (raw)
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Journal of preventive medicine and public health = Yebang Ŭihakhoe chi, 2008
The objective of this study was to evaluate the prevalence of atrophic gastritis and intestinal metaplasia according to gender, age and Helicobacter pylori infection in a rural population in Korea. Between April 2003 and January 2007, 713 subjects (298 men and 415 women, age range: 18-85) among the 2,161 adults who participated in a population-based survey received gastrointestinal endoscopy. All the subjects provided informed consent. Multiple biopsy specimens were evaluated for the presence of atrophic gastritis and intestinal metaplasia. The presence of Helicobacter pylori was determined using CLO and histology testing. The age-adjusted prevalence of atrophic gastritis was 42.7% for men and 38.1% for women and the prevalence of intestinal metaplasia was 42.5% for men and 32.7% for women. The prevalence of atrophic gastritis and intestinal metaplasia increased significantly with age for both men and women (p for trend<0.001). The age-adjusted prevalence of Helicobacter pylori w...
Journal of Biosciences and Medicines, 2016
Gastric atrophy and intestinal metaplasia represent the most important premalignant lesions in gastric carcinogenesis. The severity of gastric mucosal inflammation depends on the bacterium Helicobacter pylori (HP)‚ on the host and on environmental factors. The aim of our study is to determine the prevalence and factors associated with Gastric atrophy and intestinal metaplasia in patients infected with Helicobacter pylori. Methods: This is a prospective study over a period of 4 years (May 2009-January 2015) conducted in the service of Hepatology and Gastroenterology in hospital university Hassan II of Fez in collaboration with microbiology and molecular biology laboratory and epidemiology service of Faculty of Medicine and Pharmacy Fes. We included in our study all patients aged over 15 years, having ulcerative dyspepsia, peptic ulcer disease, gastritis or esophagitis. Results: During the study period, 1190 patients were included of which 70% had HP infection (N = 833). The average age was 48.21 years [16-99 years], sex ratio M/F was 1, 11. 60% of patients were older than 45 years. Chronic smoking was found in 12% of patients. Gastric atrophy was observed in 84% (N = 699) of patients infected with HP. Gastric atrophy was localized in 70% in the antrum and 30% in the fundus and 24% in both. The activity of gastritis (p = 0.0001) and the density of the HP (p = 0.005) were factors associated with atrophy. Intestinal metaplasia was observed in 13.5% of patients (N = 112). The density of HP (p = 0.037) and severe atrophy (p = 0.001
Histopathology, 1993
A series of 1 15 consecutive, non-ulcerous, dyspeptic patients were examined for Helicobacter pylori (H. pylori) colonization in the gastric antral and/or body mucosa using Giemsa staining. Findings were correlated with the presence and degree of activity of superficial gastritis, deep gastritis, atrophic gastritis and with the presence of intestinal metaplasia. The prevalence of H. pylori positivity was 61.7%. In 59 of the 71 positive patients (83%), H. pylori was detected in the antrum or in both the antral and oxyntic mucosa. In the remaining 12 positive patients, H. pylori was detected only in the oxyntic mucosa and in all these cases, the antrum showed intestinal metaplasia associated with atrophic gastritis (25%). In both antral and oxyntic mucosa, the activity of the gastritis was significantly correlated with H. pylori colonization. Linear logistic regression analysis showed that in patients with intestinal metaplasia the presence of H. pylori infection was significant in predicting the presence of more extensive intestinal metaplasia after adjusting for age. The prevalence of intestinal metaplasia types I1 and 111 was 65.5% in the H. pylori positive and 25% in the H. pylori negative patients. The antral mucosa is thought to be the elective site for H. pylori related histological lesions. At a later stage, H. pylori can be detected only in the oxyntic area while the antral mucosa shows extensive metaplastic or atrophic lesions. We would suggest that H. pylori plays a promotional role in the morphogenesis of intestinal metaplasia.
Prevalence of intestinal metaplasia and dysplasia in infectious and non-infectious chronic gastritis
International Journal of Research in Medical Sciences, 2015
Background: Objective of current study was to estimate the prevalence of intestinal metaplasia in dyspeptic patients in Duhok (Kurdistan region) and its association with H. pylori and dysplasia according to gender and age. Methods: This was a prospective observational study. Study was conducted from Jan 2012 to Jul 2014 at Azadi Teaching Hospital Duhok City. A total number of 205 antral gastric biopsies were collected in Azadi GIT-Centre and examined histologically to detect intestinal metaplasia. These biopsies were stained by Giemsa to detect H. pylori organisms. Results: H. pylori was found in 94 (46%) patients while intestinal metaplasia in general was found in 30 (15%) patients; (9.8% in association with H. pylori) and (4.7% without H. pylori). Among intestinal metaplasia 6 cases show dysplasia (6/205 = 3%). Conclusions: This study has documented mainly that the prevalence of intestinal metaplasia is significant among patients (In Duhok) with chronic gastritis and mainly in those patients who are positive for H. pylori with an active chronic gastritis. Intestinal metaplasia mostly affects patients above the age of 40 years with no significant gender difference.
Prevalence of Intestinal Metaplasia in Infectious and Non Infectious Chronic Gastritis
2014
The objective of the study was to estimate the prevalence of intestinal metaplasia in dyspeptic patients in Duhok (Kurdistan region) and its association with H. pylori and dysplasia according to gender and age. It was a prospective observational study performed from Jan 2012 to Jul 2014 at Azadi Teaching Hospital Duhok City. A total number of 205 antral gastric biopsies were collected in Azadi GIT-Centre and examined histologically to detect intestinal metaplasia. These biopsies were stained by Giemsa to detect H. pylori organisms. H. pylori was found in 94 (46%) patients while intestinal metaplasia in general was found in 30 (15%) patients; (9.8% in association with H pylori) and (4.7% without H. pylori). Among intestinal metaplasia 6 cases show dysplasia (6/205= 3%). This study has documented mainly that the prevalence of intestinal metaplasia is significant among patients (In Duhok) with chronic gasritis and mainly in those patients who are positive for H Pylori with an active ch...
Helicobacter, 2008
Background/Aims: Atrophic gastritis (AG) and intestinal metaplasia (IM) are premalignant gastric lesions. The aims of this study were to evaluate the prevalence of endoscopic AG and IM and to document the risk factors for these lesions. Methods: In total, 4,023 subjects were enrolled at eight hospitals in Korea. AG and IM were diagnosed by endoscopy. Helicobacter pylori immunoglobulin G antibodies were measured. Results: The prevalences of endoscopic AG and IM were 40.7% and 12.5%. In a multivariate analysis, the risk factors for AG were age groups of 40 to 59 years and >60 years, male sex, positive H. pylori serology, IM, and education below the college level (odds ratio [OR], 2.55, 5.00, 1.38, 1.41, 4.29, and 1.35, respectively). The risk factors for IM were age groups of 40 to 59 years and >60 years, male sex, positive H. pylori serology, AG, having relatives with gastric cancer, education below the college level and consumption of dairy products (
Gastric metaplasia and Helicobacter pylori infection
Gut, 1993
Duodenal and antral mucosal biopsy specimens were obtained from 139 patients with dyspeptic complaints to study the prevalence and extent of gastric metaplasia in the duodenal bulb in relation to Helicobacter pylori (H pylon) infection and duodenal ulcer disease. On logistic regression, the presence and extent of gastric metaplasia was not significantly associated with H pylori infection. The prevalence of gastric metaplasia, however, was found to be higher in patients with current or past evidence ofduodenal ulcer disease in comparison with subjects with functional dyspepsia (p=0O01). A follow up study on 22 patients before and at least one year after eradication of H pylon showed that the mean extent of gastric metaplasia did not change significantly after eradication and did not differ when compared with 21 patients with persisting infection. It is concluded that the unchanged gastric acid output after eradication of H pylori is a more important factor in the development of gastric metaplasia than the H pylori related inflammatory process.