@kodaz Thanks for your comment. If by 'effective' the gentleman surgeon means that it is considerably safer for the phrenic nerve and for the esophagus, then he is correct as far as I know (and have seen in the literature). I can't quibble with that. However, if by 'more effective' that person means it has a higher success rate in stemming AF for a full year (that is the criterion for a successful ablation, one full year free of AF), then the literature I have seen, now about six months old, not long, says that PFA and RF enjoy almost precisely the same success...keeping the patient free of AF for one full year. It's not to say PFA isn't becoming more common, more well understood, more practiced, and therefor will indeed be a better procedure and method all around (wouldn't THAT be great?!?), but as of about six months ago the literature was quite clear....no appreciable difference in recurrence rates between the two methods of deliver.