[HSF] longevity of bioprostheses

[Asai]

I have always been wondering what the real longevity of bioprostheses is.
Because for example, if you put pericardial valve at the age of 70, then the
patient become 85 yo with low ADL and dementia, and also develop gradual AS,
not acute AR due to breakdown of prosthesis, probably reoperation is not
performed.

Reported "reoperation free rate" for elderly patients is hard to believe or
I should say it is not reflected on the durability. Obviously!

Now in my practice, I put more and more bioprosthesis (mostly CEP) to late
70s and 80s. What would you expect the destiny of them? In my country,
patients on hemodialysis live longer than most of countries. I think
patients with renal failure have a kind of acceralated process of aging.
Maybe this group of patients give us a clue in future.

Ani or insightful members, give me a smart answer, or comments!
--
Tohru