The degree of mucosal atrophy is associated with post‐endoscopic submucosal dissection bleeding in early gastric cancer

Despite the widespread use of endoscopic submucosal dissection (ESD) for early gastric cancer, post‐ESD bleeding remains a significant problem. Intragastric pH plays an important role in intragastric bleeding. Because gastric acid secretion contributes to intragastric pH, both the presence or absence of Helicobacter pylori infection and the degree of gastric mucosal atrophy may affect bleeding. The present study aimed to clarify the relationship between post‐ESD bleeding and the degree of gastric mucosal atrophy based on H. pylori infection status.

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