Kfay, I had Ablation done 2007 to treat PSVT. It is nothing to be scared about. It is like an Angiogram in stereo (they go in - both sides) and you'll be asleep during the whole process! They may keep you half sedated during the "Mapping" stage, but you'll enjoy a nice 3-4 hour nap and when you wake up - just a bit of discomfort in your groins.
I pray that they solve the problem and that your EP Specialist do a good job.
hugs ( )