Hi Ron,
AS noted in my PM to you, with long standing case like yours of 13 years, even with the present decent control of Flec, you are better off getting your ablation process taken care of .. assuming you have a highly experienced ablationist on tap, as I assume you do noting that you have traveled out of state to set this up.
Just know too, that not a lot of EPs are familiar with how to properly screen for LAA involvement and then who are also experienced in how to isolate the LAA/CS structures, though you may well not have any as yet. You certainly want an EP who is very familiar with all possible scenarios that you might need addressed and not just someone who does mostly PVI or PVAI with some occasion additional work venturing beyond these anatomical ablation regions.
The problem with waiting now, as your local EP suggests, is that after 13 years there is a very high likelihood of having undergone a good degree of remodeling. How this thing works is that when we continue trying to judge when the best time for an ablation is by postponing it always until you have really severe AFIB again that, after so many years as you have, the odds greatly increase that when (not if) the Flec starts to go south on you and stops working very well, you can easily find yourself suddenly in persistent AFIB or a much more advanced stage of paroxysmal AFIB that technically isn't much different from persistent AFIB.
In either case, this added procrastination, simply because your got a temporary respite, is far more apt to land you with a LAA isolation for sure being required and if you don't have a real maestro at doing LAA isolation, then you likely wont get one even if you need it and thus the merry-go-round of more repeat ablations continues.
I'm all for doing everything we can both naturally and with drugs when appropriate in the early days for a serious dedicated effort of 6 months to a year max at going real and near total control over your AFIB. But at 13 years of gradually progressing AFIB, even the fact that FLEC is helping for now should better be seen as a gift and a fortuitous window open to you now to get an expert ablation process done will the heart is relatively quiet and less daily remodeling is likely taking place.
The procrastinating mind LOVES to figure out one one angle or one more method to try to stay one step ahead of the beast, I understand that mind intimately and was a real maestro myself at procrastinating rationale's for postponing even considering an ablation for at last a year to two longer than was in my best interest.
Its so alluring the idea that "hey Im in NSR why bother with an ablation now" ... it sounds common sense and even many less experienced EPs who have seen far too much of the effect of mediocre to poor quality ablations in the past and thus are naturally weary of ablations, from their limited experience of what is possible in more skilled hands, often reinforce that reticence in their patients.
Yet it often turns into a very poor bargain and decision unfortunately. AFIB is relentless, and we all know how as soon as we hit NSR within half an hour the thoughts of needing an ablation fade into the sunset as we start bargaining with ourselves and figuring out why there is no rush to get this taken care of.. Believe me, I fully understand the apparently but misleading logic.
If you can't get this thing under control fairly early in the game once you have started on dedicated effort at natural/drug based management, then don't back out of an ablation you have set up with a truly experienced ablationist who does not only paroxysmal but it very skilled at persistent AFIB ablation as well.
I'm all for including all of the above methods as and when needed, but don't start backing out of an expert ablation process this last in an already 13 year game .. as the odds only increase exponentially that you will misjudge when that razors edge has been crossed and you can no longer avoid a more extensive multi procedure process and possible with added complexity such as LAA isolation being required.
It all sounds clear and logical and common sense not to go for an ablation when you are currently in NSR, but you have to look at the context of that NSR within the big picture of you AFIB history and in your case view this golden window of temporary respite from the FLEC as a great chance to get on top of this now once and for all.
Also, with regard to reverse remodeling, it takes basically perfect NSR for a prolonged period to make substantial headway with reverse remodeling. If a person is still having short or even widely spaced episodes it has a tendency to arrest that reverse remodeling in its tracks. After 3 to 4 months of pure unbroken NSR the electrical remodeling will start to become more noticeable, and after six plus months some degree of structural remodeling may begin to happen. However, it is felt that more advanced structural remodeling is very hard, if not impossible to truly reverse even though there are a few promising but not yet proven, drugs and peptide-like agents being investigated now, such as the mammalian hormone peptide Relaxin-2 (and a couple other investigative agents) which might truly help reverse existing scarring and fibrosis within the heart, though its still far too early in the research to count on those methods as sure things.
Shannon