Atrial fibrillation (AF) is the most common sustained arrhythmia in adults worldwide. The incidence of AF is 2-to-3-fold higher in chronic kidney disease (CKD) compared with the general population1 and is associated with a high risk of subsequent cardiovascular events. In addition, studies have found an association of AF with loss of kidney function.2-4 Possible mechanisms to explain this association include alterations in renal hemodynamics, upregulation of inflammatory pathways and microinfarcts, among others.