Very early versus early endoscopy in acute non-variceal upper gastrointestinal bleeding: A prospective cohort study with propensity score matching.
OBJECTIVE To evaluate whether endoscopy within 12 h improves clinical outcomes compared with endoscopy performed between 12 and 24 h in patients with acute non-variceal upper gastrointestinal bleeding (NVUGIB). PATIENTS AND METHODS This prospective cohort study included adults with acute NVUGIB who underwent upper GI...