Figure 3.

Device-detected compared with electrocardiogram-diagnosed atrial fibrillation in relation to atrial fibrillation progression (which can take several months to years) from very low to very high burden. Electrocardiogram documentation can be achieved using single-lead electrocardiograms or 6- to 12-lead electrocardiograms using accepted definitions of atrial fibrillation. Electrocardiogram documentation of atrial fibrillation is a simple, clinically operable method to identify patients with a high arrhythmia burden. AF, atrial fibrillation; ECG, electrocardiogram.