Management of Gastric Atrophy

Initial Diagnostic Confirmation and Staging

The American Gastroenterological Association recommends obtaining a minimum of 5 biopsies from the antrum/incisura and corpus in separately labeled containers, with any suspicious areas biopsied and labeled separately, to ensure proper diagnosis and risk stratification of gastric atrophy 2, 3
The American Gastroenterological Association suggests working with a pathologist to ensure documentation includes H. pylori status, severity of atrophy/metaplasia, and histologic subtyping of gastric intestinal metaplasia, to guide treatment and surveillance decisions 2, 4
High-definition white-light endoscopy with image enhancement is recommended to improve detection of atrophic changes and intestinal metaplasia, according to the American Gastroenterological Association 3, 5

The American College of Gastroenterology recommends H. pylori eradication as primary prevention, though it does not eliminate the need for surveillance in patients with established atrophy, with a strength of evidence rated as high 1, 6
Bismuth quadruple therapy for 14 days is recommended for H. pylori eradication, with a regimen consisting of bismuth subcitrate, two antibiotics, and a high-potency PPI, according to the American College of Gastroenterology 7

The American Gastroenterological Association recommends formal risk stratification to determine surveillance needs, with high-risk features including severe atrophic gastritis, multifocal or incomplete intestinal metaplasia, and anatomically extensive intestinal metaplasia 1, 3
Patients with severe atrophic gastritis and/or multifocal/incomplete intestinal metaplasia should undergo endoscopic surveillance every 3 years, with consideration of shorter intervals for those with multiple risk factors, according to the American Gastroenterological Association 1, 3, 8

The American Gastroenterological Association recommends confirming low-grade or indefinite dysplasia with an experienced GI pathologist, and eradicating H. pylori infection if present, before repeating endoscopy with biopsies 1, 4
High-grade dysplasia or early gastric cancer requires immediate referral for endoscopic submucosal dissection at an expert center, with a goal of en bloc, R0 resection, according to the American Gastroenterological Association 1, 4, 6

The American Gastroenterological Association recommends observing or resecting lesions <1 cm, endoscopic resection for lesions 1-2 cm, and obtaining cross-sectional imaging and referring for surgical resection for lesions >2 cm, due to metastatic risk 4

The American College of Gastroenterology warns against relying on symptom resolution alone to confirm H. pylori eradication, and recommends using objective testing instead, with a strength of evidence rated as high 7
The American Gastroenterological Association advises against using inadequate antibiotic duration, failing to obtain separate antral and corpus biopsies, and assuming H. pylori eradication eliminates cancer risk, as established atrophic changes require ongoing surveillance regardless of eradication success 2, 5, 7