Gastritis Management Guidelines

Initial Assessment and Diagnostic Workup

The American Gastroenterological Association recommends performing non-invasive testing with urea breath test or monoclonal stool antigen test for H. pylori testing in all patients with gastritis 1, 2
Avoid serological testing as it remains positive after successful treatment and cannot confirm eradication 1
If atrophic gastritis is present on histology, check antiparietal cell antibodies and anti-intrinsic factor antibodies to identify autoimmune etiology 1, 3

The American College of Gastroenterology recommends bismuth quadruple therapy for 14 days as the preferred first-line treatment for H. pylori-positive gastritis 1, 2, 3
High-potency PPIs, such as esomeprazole 20-40 mg or rabeprazole 20 mg, should be taken twice daily for optimal effectiveness 1, 2, 3
Use antibiotics from the "Access group" (amoxicillin, tetracycline, metronidazole) rather than "Watch group" (clarithromycin, levofloxacin) when possible 1

High-potency PPIs are superior to lower-potency options for acid suppression therapy in all gastritis types 1, 2, 3
Esomeprazole and rabeprazole are recommended at doses of 20-40 mg and 20 mg, respectively, twice daily 2, 3

Confirm H. pylori eradication 4-6 weeks after completing therapy using non-serological testing 1, 2
Do not rely on symptom resolution alone to confirm treatment success 2, 3

Explain that gastroesophageal reflux is a physiologic process and provide standardized educational material on GERD mechanisms, weight management, lifestyle, and dietary behaviors 6
Emphasize the importance of completing the full antibiotic course 1, 2

Long-term PPI treatment in H. pylori-positive patients is associated with corpus-predominant gastritis and accelerated progression to atrophic gastritis 3
Eradicate H. pylori before initiating long-term PPI therapy to prevent progression to atrophic gastritis 3