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  • Title: A case of 24 years longevity of an Ionescu-Shiley bioprosthesis in the mitral position.
    Author: Watanabe Y, Ohkawa S, Yamabuki K, Tsuneoka H, Sugiyama N, Hiyama T.
    Journal: Asian Cardiovasc Thorac Ann; 2006 Oct; 14(5):e96-8. PubMed ID: 17005876.
    Abstract:
    Valve dysfunction, attributed to primary tissue failure several years after implantation of Ionescu-Shiley bioprostheses, has led to re-operation in most cases. We report a rare case of this bioprosthesis showing stenosis and regurgitation after implantation in the mitral position 24 years previously. No cusp tears, but severe calcification and well-grown neointima over the Dacron cloth of the inner surface were observed. This may explain how the valve functioned for such a long period of time. We replaced it with a Carpentier-Edwards pericardial bioprosthesis.
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