Right and left ventricular outflow tract tachycardias: Evidence for a common electrophysiologic mechanism
Heart Conduction System
Ventricular Dysfunction, Left
Ventricular Dysfunction, Right
Electrophysiologic and pharmacologic properties, including sensitivity to adenosine, are similar for RVOT and LVOT arrhythmias. Despite disparate sites of origin, these data suggest a common arrhythmogenic mechanism, consistent with cyclic AMP-mediated triggered activity. Based on these similarities, these arrhythmias should be considered as a single entity, and classified together as "outflow tract arrhythmias."