Another study assessed the feasibility for discontinuation of OAC after ablation based on the AF burden documented by implantable cardiac monitors.859 During a follow-up time of 32 ± 12 months (126 patient-years), 41 of the 65 patients (63%) had an AF burden <1 hour per day and were able to stay off OAC. Twenty-one patients (32%) had to reinitiate OAC due to an AF burden >1 hour, and three patients reinitiated OAC due to other reasons. No stroke, TIA, or other thromboembolic event was observed during follow-up. These are important data for those patients who decide not to receive chronic OAC, and we suggest consideration of an anticoagulation strategy based on AF burden measured by monitoring.