COMPARATIVE STUDY
JOURNAL ARTICLE

Long-term effects of Helicobacter pylori eradication on gastric antral mucosa in duodenal ulcer patients

F Zerbib, C Lenk, B Sawan, R Cayla, N Broutet, B Carles, A de Mascarel, F Mégraud, H Lamouliatte
European Journal of Gastroenterology & Hepatology 2000, 12 (7): 719-25
10929896

OBJECTIVES: The aim of this study was to assess the consequences of prolonged Helicobacter pylori eradication on gastric antral mucosa in duodenal ulcer patients.

PATIENTS AND METHODS: Forty-three duodenal ulcer patients with confirmed H. pylori eradication after one year of follow-up were included in this retrospective study. Before H. pylori eradication and during the follow-up, four antral prepyloric biopsy samples were taken for histopathological examination and culture. Histopathological lesions were graded semi-quantitatively according to the updated Sydney System for activity, chronic inflammation, glandular atrophy and intestinal metaplasia (IM), as well as presence of lymphoid follicles.

RESULTS: After a mean follow-up of 43 +/- 23 months, H. pylori eradication statistically improved all gastritis scores, including the atrophy score and the lymphoid follicle score but excluding the IM score. H. pylori eradication resulted in normalization of gastric mucosa in 51.2% of patients and a significantly lower proportion of patients with non-atrophic gastritis and atrophic gastritis without IM. Atrophy totally disappeared in 16/29 patients (55.2%) in whom IM was absent. No predictive factor for regression of atrophy or normalization of gastric mucosa was identified.

CONCLUSION: In duodenal ulcer patients, prolonged absence (more than one year) of H. pylori can lead to normalization of the antral mucosa and the disappearance of mucosa-associated lymphoid tissue, as well as the regression of antral atrophy. Long-term studies involving selected patients with atrophy and IM which persist after H. pylori eradication are needed to determine the potential benefits of treating H. pylori gastritis with regard to gastric cancer prevention.

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