D . RF ablation at these sites eliminated the ATP-induced AF
despite the residual dormant conduction of the left PV (black arrow). We
applied RF ablation at the posterior segment of the left PV to achieve
re-isolation. Finally, we confirmed that ATP induced neither AF nor
dormant PV conduction.
ATP = adenosine triphosphate; PV = pulmonary vein; AF = atrial
fibrillation; PACs = premature atrial complexes; CS = coronary sinus;
HFS = high frequency stimulation.