I am new to this forum. I had my surgery 3 years ago. I never had any health problems before, then one day was got very sick and it end up having Endocarditis and I had to get my mitral value replace. I chose the tissue value mainly because I want to have children and I live an active life. I was told the valve should last about 8 to 12 years. It this correct. I am hoping more like 12 to 15 years. Any info would be great.