The extent of complex fractionated atrial electrograms in the left atrium reflects age‐related electrical remodeling in patients with persistent atrial fibrillation

Abstract

Alterations in the atrial structure and function associated with aging result in electric remodeling of the left atrium (LA) in patients with persistent atrial fibrillation (AF). We performed this study to evaluate the influence of age on electric remodeling as assessed by the extent of complex fractionated atrial electrograms (CFAEs) in the LA.