Chronic Gastritis Part 1. Epidemiology. Etiology and Pathogenesis. Classification. Clinical Manifestations

The first part of the article presents modern ideas about chronic gastritis – the concept and definitions, epidemiology, the main mechanisms and the role of Helicobacter pylori infection in the development of the disease. Various variants of classifications and clinical manifestations are reflected.

Chronic gastritis is a diagnosis that is often implemented in medical practice, and its formulation does not always reflect the essential aspect of the disease in a particular patient. Over the past ten years, medical science has made a significant step forward, allowing us to reconsider our ideas about chronic gastritis at a qualitatively new level of knowledge.

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