Heterogeneity of Retrograde Fast-Pathway Conduction Pattern in Patients With Atrioventricular Nodal Reentry Tachycardia

Abstract

Retrograde atrial activation over the fast pathway is heterogeneous within Koch's triangle and the coronary sinus, both for the entire population and for individual patients during different modes of activation. These data do not support the concept of an anatomically discrete retrograde fast pathway.