Gastrointestinal Hemorrhage in Warfarin Anticoagulated Patients: Incidence, Risk Factor, Management, and Outcome

Table 2

Endoscopic findings of warfarin anticoagulated patients with gastrointestinal bleeding.

Source of bleeding	Patients (%)
Upper gastrointestinal bleeding
Esophageal ulcer	1 (4.0%)
Gastric ulcer	1 (4.0%)
Duodenal ulcer	16 (64.0%)
Gastric polyp	1 (4.0%)
Lower gastrointestinal bleeding
Rectal cancer	2 (8.0%)
Pseudomembranous colitis	1 (4.0%)
No identifiable source	3 (12.0%)