My guess is the age limit is done for the doctor. He can say he has greater success with his ablations by limiting older folks who had higher failure rates. That persons would be an automatic no go for me. I have had 2 Afib ablations 1 at 72 and the 2nd at 76,5, The university based center I go to will do them on people in their 90's if they are candidates for the ablation.