Approximately how long will a mosaic porcine heart valve in the mitral position last before needing replacement? I am 23 yrs old

Exactly . I agree completely with dr. Binford. Probably less than 10 years.
7-10 yrs. Tissue valves typically last 10-15 yrs but it is less in younger pateints. Also they don't last as long in the mitral position as they do in the aortic position. I typically recommend a mechanical for patients your age.
Agree. 7-10 years. They last less in younger patients.
It is a low pressure. Valve so it could last a long time but this is highly variable. Most younger people get mechanical valves as they can last a lifetime.