Gastrointestinal bleeding and the risk of colorectal cancer in anticoagulated patients with atrial fibrillation

Retrospective study suggests lower GI-bleeding during oral anticoagulant therapy should not be dismissed as benign consequence of treatment but always examined for potential underlying malignant cause (absolute 1yr risk:3.7 to 8.1% in age groups ≤65 and 76–80 yrs, respectively).


European Heart Journal