In patients with atrial fibrillation who had warfarin treatment interrupted for an
elective operation or other elective invasive procedure, forgoing bridging anticoagulation
was noninferior to perioperative bridging with low-molecular-weight
heparin for the prevention of arterial thromboembolism and decreased the risk of
major bleeding. (Funded by the National Heart, Lung, and Blood Institute of the
National Institutes of Health; BRIDGE Clinical Trials.gov number, NCT00786474.)