@makial Okay, this means you do NOT have RVR....rapid ventricular response. You just have a form of SVT called atrial fibrillation where rogue cells have begun to fight for control of the rhythm of your left atrium, but your normal signaller, the sinoatrial node (SA) doesn't want to give up doing it's normal job from Day One. FYI, generally, a heart rate in AF below about 110 BPM means, usually, that RVR is not involved. That's good!

I'm not an expert by any means, no medical training, but to me, you are probably looking at a third ablation, but by someone who knows what he/she faces with you and knows how to get you back into NSR. Note that such arrhythmias cannot generally be 'cured' or 'fixed'...they can only be blocked from happening, which is what an EP does during an ablation. He creates scars around the foci he/she finds via the mapping process. Those scars are impervious to the electrical impulses, so they act as a dam. If the lesions created during an ablation close off in a tight, contiguous, ring, then signal is confined to the inside of that ring of scarring. It cannot get out. So, the atrium once again only responds to the SA node, and that's what everyone wants for you.