At age 35 I was diagnosed with bacterial endocarditis and approximately two weeks from congestive heart failure. I spent several weeks trying to recover from the infection. I wound up having mitral valve replacement surgery in February of 1998. I have a St. Jude bileaflet valve. I still love hearing it tick, LOL. I'm 60 now and my valve is still working great. I feel very lucky. I take warfarin daily.