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  • Title: [Usefulness of echocardiography for detecting prosthetic valve dysfunction; report of a case].
    Author: Oyama S, Ohuchi S, Okubo T, Kumagai K.
    Journal: Kyobu Geka; 2014 Oct; 67(11):1025-8. PubMed ID: 25292382.
    Abstract:
    A 78-year-old woman with a history of mitral valve stenosis underwent open mitral commissurotomy in 1976. In 1990, she underwent mitral valve replacement (Medtronic-Hall 29 mm), tricuspid annuloplasty(DeVega method), and pacemaker implantation for bradycardiac atrial fibrillation. However, in June 2012, she developed anemia of unknown cause. Prosthetic valve dysfunction was suspected, because intermittent changes in the left ventricular inflow was detected by echocardiography. Fluoroscopy actually confirmed the presence of prosthetic valve dysfunction. Therefore mitral valve re-replacement(ATS Medical, Inc. 29 mm) and tricuspid annuloplasty (Cosgrove ring 30 mm) were performed. Monitoring the changes in the left ventricular inflow is recommended when prosthetic valve dysfunction in a single leaflet is suspected.
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