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Asian Cardiovasc Thorac Ann 2006;14:e96-e98
© 2006 Asia Publishing EXchange Ltd

CASE STUDIES

A Case of 24 Years Longevity of an Ionescu-Shiley Bioprosthesis in the Mitral Position

Yutaka Watanabe, PhD1, Shuuichi Ohkawa, MD, Keisuke Yamabuki, PhD, Hidekazu Tsuneoka, MD, Noboru Sugiyama, MD, Teruo Hiyama, PhD

Department of Cardiovascular Surgery, Higashitoride Hospital, Ibaraki, Japan
1 Division of Cardiovascular Surgery, Kiryu Kosei General Hospital, Kiryu, Japan

For reprint information contact: Yutaka Watanabe, PhD Tel: 81 277 44 7171 Fax: 81 277 44 7170 Email: yuwatanabe-ths{at}umin.ac.jp, Division of Cardiovascular Surgery, Kiryu Kosei General Hospital, Orihime 6-3, Kiryu, Gunma 376-0024, Japan.

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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