What is a reasonable atrial fibrillation percentage burden that would benefit from systemic anticoagulation for a patient with an elevated CHA₂DS₂-VASc score?  

Patients with implanted devices can have an accurate measure of their AF load which has raised the question of whether ANY AF should be anticoagulated. Healey et al., PMID 22236222 is often erroneously quoted as saying that 6 minutes is all that is needed. That was their cutoff for inclusion as subc...

The atrial fibrillation percentage burden can be a misleading figure as sometimes many brief episodes could equal one long episode in terms of total time in atrial fibrillation. No one has yet created a model that incorporates CHADS-VASC that adds the time in atrial fibrillation. My personal approac...