my cardiologist peers are unsure wether to seal a medium size hole i have had from birth, it did no effect me till i was 54, my right side of my heart is dilated, i have had afib only twice in a year, my blood is mixing, but only abit, the reason they are hesitating is because i have only had afib twice, and i only have a small leak, but i want to have it sealed, i dont want to be on beta blockers and warfarin for the rest of my life, i will know what the have decided in 2 weeks, but i could tell my the doctors face it is doughtful if they will do it, what can i do to change their minds, my heart is already enlarged and i would have thought that not to seal the hole could lead to futher damage. thank you