Kato I, Kaihotsu N, Sugimoto T, Koide Y, Sakaki Y
Jpn Heart J. 1976 Nov;17(6):791-7. doi: 10.1536/ihj.17.791.
A case is presented in which 7 months after the first mitral valve replacement (MVR) the malfunction of a Björk-Shiley valve prosthesis was supposed and the thrombosed valve prosthesis was 2 months later successfully replaced. For the detection of the malfunction of the valve prosthesis echocardiography was especially useful.