Yes, it's Pediatric Cardiology. I'll try to add a link here but if I'm doing it wrong, click on forums at the top and scroll down to the "P" section. You'll find it there.
http://www.medhelp.org/forums/Pediatric-Cardiology/show/302
Wow, I wish I knew the answer. At 33 lbs he's still pretty small. Have they mentioned anything about the size of his blood vessels at this age? I've had 3 ablations but I'm much older and my vessels were easy to access. I do think an ablation is in his future but I don't know how risky it is for someone his size and age. I hope someone else can help.
And I think there's a pediatric heart disease forum on here some place. Their children are dealing with heart problems and they would have some answers. Let me go look.