Unifying mechanism of sustained idiopathic atrial and ventricular annular tachycardia
Electrophysiologic Techniques, Cardiac
Tachycardia, Ectopic Atrial
Peri-annular atrial and ventricular tissue correspond to a region enriched with arrhythmogenic foci, which may reflect a common developmental origin. Furthermore, the sensitivity of these tachycardias to adenosine provides evidence for a shared arrhythmia mechanism, consistent with intracellular calcium overload and triggered activity.