I had my first AVR in March of 2009 and the valve lasted 13 years but I now have severe aortic stenosis and symptomatic. So next week I go in to have it replaced with a mechanical valve. My first valve was a bovine tissue valve which in hindsight was probably the wrong decision, I should have went mechanical. So this time I decided to go the mechanical route so hopefully I won't have to do it again. They suggested a TAVR but since that may last only 10 years I would have to have a SAVR in 10 years to replace it, which would make me 70 years old. I am not in the best physical shape now so I could not imagine doing this in 10 years. So fun times next week but at least I know what to expect!