Isolated pulmonary vein tachycardia during atrial fibrillation

A 67-year-old man with a 5-year history of drug-refractory persistent atrial fibrillation (AF) lasting for 7 months prior to the procedure underwent radiofrequency (RF) catheter ablation. The initial AF cycle length (CL) in the coronary sinus (CS) was 162 ms. Ablation was started with isolation of the left pulmonary veins (PV) by creating a continuous… CONTINUE READING