Impact of Ischemic and Valvular Heart Disease on Atrial Excitation:A High‐Resolution Epicardial Mapping Study

Abstract

Atrial excitation during SR is affected by underlying heart disease and AF, resulting in alternative routes for BB and left atrioventricular groove activation and prolongation of total activation times. Knowledge of atrial excitation patterns during SR and its electropathological variations, as demonstrated in this study, is essential to further unravel the pathogenesis of AF.