Abstract
Almost 33 years have elapsed since the introduction of the Kay-Shiley disc valve in Japan. Following the developement of pyrolite carbon, the Kay-Shiley valve is no longer in clinical use. We report the case of a female patient who had had an isolated mitral valve replacement with the Kay-Shiley disc valve with single muscle guard 22 years previously. After numerous thromboembolic episodes with the Kay-Shiley disc valve, a successful reoperation was done with the CarboMedics valve. The explanted valve revealed that the grooved occluder disc had a loosely adherent clot The thromboembolism is a notorious complication associated with this valve. We recommend re-replacement of the Kay-Shiley valve whenever possible.
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Sakamoto, Y., Kurosawa, H., Takakura, H. et al. A 22-year course of the Kay-Shiley disc valve with muscle guard at the mitral position. Jpn J Thorac Caridovasc Surg 47, 574–576 (1999). https://doi.org/10.1007/BF03218066
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DOI: https://doi.org/10.1007/BF03218066