@cltotten1 I am doing swimmingly, thanks. I had two catheter ablations where they make scar tissue in circles around the pulmonary vein ostia, their mouths, where they each, four of them, empty oxygenated blood into the left atrium (that location accounts for 90% of all patients' atrial fibrillation, so it tends to be the first attempt at busting the arrhythmia). The scar tissue doesn't affect the heart much at all, but it is impervious to the rogue electrical signals emanating from those ostia. Dam around each vein, no signal can get out into the endothelial lining of the atrium and cause the myocytes to beat chaotically...which is what fibrillation is.

First attempt failed (there's a statistical failure rate of all first, or index, ablations of 25%, regrettably.) Second seven months later has had me in NSR for just under three years now. More statistics: most ablations fail in time. Some within months, some many years later, with the heavy majority going a few years at least. For symptomatic AF sufferers, that's a gift of immense value. I'll happily take three years free of AF, and then go see my EP for a re-do.