They also say the older you are the longer the tissue valve will last. I'm not sure at 51 what the lifespan of a tissue valve is. If you go to the cleveland clinic website there is a ton of information. But I have a friend with three tissue valves that he had recieved at 18 years old, he is just now having problems at 35 years old. Also on the cleveland clinic website you can chat with nurses, sign up for a chat they are having next week about precutaneous replacement with some of their surgeons.
I was around that age last year when I got my VR. Surgeon said if I got a tissue valve I'd be looking at 2 if not 3 more surgeries. I'm glad I got a mechanical valve.