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The JACRE-R Registry, in which 42 Japanese institutions participated, monitored the efficacy and safety of rivaroxaban in catheter ablation (CA) of atrial fibrillation (AF). In the present analysis, we sought to elucidate the effects and risks of heparin bridging and different patterns of interruption/resumption of rivaroxaban on complications of CA.Methods and Results:We administered rivaroxaban during the perioperative period and recorded the incidence of complications up to 30 days after CA. A total of 1,118 patients were registered; 546 received heparin bridging and 572 did not. The bridging group showed a significantly higher incidence of non-major bleeding than the no-bridging group (4.03% vs. 0.87%; P=0.001). In the group receiving their last dose of rivaroxaban at 8-28 h before CA, neither thromboembolism nor major bleeding was observed during or after CA and the incidence of non-major bleeding was low (4/435, 0.92%). The incidence of non-major bleeding was significantly higher in the group resuming rivaroxaban ≥12 h after CA than in the group resuming <12 h (1.79% vs. 0.27%, P=0.045).Heparin bridging increased the risk of non-major bleeding perioperatively. It was safe to stop rivaroxaban 8-28 h before the CA procedure, whereas resumption of the drug within 12 h of CA was associated with a lower incidence of non-major bleeding.

circulation journal

Effects and Risks of Heparin Bridging and Different Modes of Interruption/Resumption of Rivaroxaban on Perioperative Complications of Catheter Ablation for Atrial Fibrillation ― Another Analysis of the JACRE-R Registry ―