I've never heard of a Pulmonary Vein Ablation. As a cardiac nurse, I've taken care of many Ablations for A-fib.. but they were always in the heart muscle.. never in the pulmonary vein. What they do is an electrophysiology study to determine which part of the cardiac muscle is irritable and sending impulses for the atria to contract thus causing atrial fibrillation.. THEN that area is cauterized or ablated to stop the firing of those impulses putting the heart back into sinus rhythm.. So if you could find some info on that procedure, I would like to know about it.