We investigated 2668 patients with non-variceal upper gastrointestinal bleeding and 660 patients with lower gastrointestinal bleeding treated between 1987 and 2011 in our hospital. Upper gastrointestinal bleeding was associated with gastric ulcer, duodenal ulcer, Mallory-Weiss syndrome, esophageal disease, and others. Endoscopic hemostasis was performed in approximately 67% of all cases with upper gastrointestinal bleeding and approximately 90% of cases with ulcer. The hemostasis success rate was over 90% for ulcer bleeding, and was also generally high for other diseases. The total number of patients with lower gastrointestinal bleeding was lower, with it being approximately 20% of those with upper gastrointestinal bleeding. Endoscopic hemostasis was performed in approximately 30% of the patients with lower gastrointestinal bleeding. The hemostasis success rate was generally high, but treatment switch to surgery or interventional radiology (IVR) was observed in some cases with colorectal diverticular bleeding.
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