ENDoscopic Assessment in Acute PANcreatitis Study (ENDOPAN Study)

This is a prospective observational cohort study designed to evaluate early upper gastrointestinal endoscopic findings in adult patients hospitalized with acute pancreatitis. The study aims to determine whether gastric and duodenal mucosal abnormalities detected during early hospitalization are associated with the severity and clinical course of acute pancreatitis. Adult patients diagnosed with acute pancreatitis according to the revised Atlanta criteria will be enrolled after providing informed consent. Upper gastrointestinal endoscopy will be performed within 24-48 hours from hospital admission. In patients with moderately severe or severe acute pancreatitis, a follow-up endoscopy may be performed before discharge. Clinical, laboratory, imaging, microbiological, and endoscopic data will be collected prospectively during the index hospitalization. The primary objective is to assess the association between early endoscopic mucosal abnormalities and acute pancreatitis severity according to the revised Atlanta classification. Secondary objectives include evaluation of the relationship between endoscopic findings and organ failure, local or systemic complications, inflammatory markers, nutritional tolerance, length of hospital stay, need for invasive interventions, and in-hospital mortality. The study has received a positive opinion from the Bioethics Committee of Jan Kochanowski University in Kielce, Collegium Medicum, resolution no. 27/2026 dated May 20, 2026.