Arrhythmias & electrophysiology
Atrial Fibrillation Burden: Moving Beyond Atrial Fibrillation as a Binary Entity: A Scientific Statement From the American Heart Association
Recommendations
As issued by the authors
Atrial fibrillation (AF) burden can be defined quantitatively by longest duration, number of AF episodes during a monitoring period, and proportion of time in AF during a monitoring period (%)
Higher AF burden is associated with higher stroke risk; whether risk increases continuously or a threshold exists is unclear, and any threshold has not been defined
Higher AF burden is associated with higher prevalence and incidence of HF and higher mortality, but not necessarily lower quality of life
A structured, comprehensive risk factor management program targeting risk factors, weight loss and maintenance of healthy weight appears effective in reducing AF burden
Original publication
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