My squash game is on hold for a time, not related to my 2002 heart surgery, but because of a recent hip replacement. I am now taking serious walks to help bring my hip back into shape and looking forward to getting back to the squash courts. As for what I can point to as contributing to the success of my bioporsthetic aortic valve, I could point to two factors (other than a daily shot of scotch!): the valve itself (Edwards Magna Perimount) and my extraordinary surgeon (John Elefteriades). Also, by way of background, I had other medical issues happening at the time of my heart surgery, which was a factor in my choice of a tissue valve. As I said in an earlier post, I was 58 at the time of the surgery, and I am 76 now. Let me know if you have other questions.