We don't need silly stats. Just read through and see the bioprosthetics re ops in this thread. 3rd/4th redo...and ask yourself the pains in the months to the surgery, wondering what is wrong, why you are out of breath.
Could you have a heart attack? Yes. A stroke? Yes. Heart failure? Yes.
Oh what is the quality time in the hospital before and after surgery? Can your heart take a 2nd and 3 rd cut? Heart block...
Do I have to sell you rat poison every day but greater chance of no surgery ever again?
It's your body, do what you want.