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- W7553412 abstract "Since the introduction of valve replacement surgery, research has aimed at creating a prosthesis that is safe, durable and effective. Neither of the two broad groups of valve currently available is ideal. A prosthetic valve is needed that does not suffer from the known disadvantages of calcification and premature failure (bioprostheses), and thrombogenicity (mechanical valves). Much progress has been made, both in design and materials, and an extensive range of polymer valves has been produced and tested both in vitro and in vivo. Unfortunately, each stage of development has encountered problems preventing successful clinical application. Many design difficulties have been addressed and potentially reduced to acceptable levels, but calcification remains a problem, although much less so than with bioprostheses. New developments in surface modification may hold the key to the elimination of thrombus and calcification, and early in vivo results are promising. It is likely that an effective and safe polymer valve will soon become a third clinical option. The historic aspects behind the development of polymer valves and the current state of research and evaluation are discussed." @default.
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- W7553412 date "1999-05-01" @default.
- W7553412 modified "2023-09-23" @default.
- W7553412 title "Polymer heart valves." @default.
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