This heart problem has meant that I've looked into my family history to see about early on set cardio disease.
My father died suddenly at 65 -- one November day he went out to rake leaves and didn't come back. His father (my grandfather) had a stroke when he was in his late 60s and he died of heart failure a few years later. And, my great-great-grandfather died suddenly of heart failure when he was 63. The newspaper column here is from front page of the Oregonian newspaper on October 26, 1908. It is reported that great-great-grandfather "had been in his usual health yesterday and his sudden death was a great shock to the family". Sounds just like my dad.
So, maybe my having this operation will mean that I might live past the 65 my genes have planned for me.