A new study has found that in patients with failed bioprosthetic aortic valves who underwent transcatheter valve-in-valve implantation, the survival rate was only 83 percent. Surgical aortic valve replacements increasingly use bioprosthesis (composed of biological tissue) implants rather than mechanical valves. Owing to a considerable shift toward bioprosthesis implantation, it is expected that there will be an increase in the number of patients with degeneration ...
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