@stan52 I was told by an internist that flutter tends to stay in flutter. It doesn't usually come and go on its own. However, there is always variance between patients and the 'empirical data' about a syndrome or a pathology....we're all different. Anyway, I hope you get what you need from the PFA. Please consider, if you ever think of it, to come back and let us all know how you made out. Also, if it turns out that it WAS flutter.

@stan52 There are at least 2 types of flutter, typical and atypical, clockwise and counterclockwise. Typical is usually near the cavotricuspid isthmus in the right ventricle and carries a 90+% success rate with a really fast recovery. Atypical is in the left atrium. It is much more difficult to successfully ablate. Both flutters are regular and are the result of a rentry circut, hence it's referred to as regularly regular whereas fib is referred to as iregularly irregular and is chaotic.