GI ulcer occurring in burn patients; causes significant bleeding usu. 4Ð10 days postburn. Lesions tend to be multiple but nonconfluent; may occur anywhere from esophagus to terminal ileum, most commonly in posterior duodenal wall. Treatment is aggressive prophylaxis against ulcer formation (e.g., antacids, H2-blockers, omeprazole), adequate nutrition, and control of sepsis. If severe hemorrhage occurs, ulcer is initially oversewed to control bleeding followed by hemigastrectomy and vagotomy.