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  • Title: [Mitral valve replacement for hypertrophic obstructive cardiomyopathy with repeated heart failure; report of a case].
    Author: Okada H, Nishida M, Takahashi M.
    Journal: Kyobu Geka; 2007 Mar; 60(3):242-4. PubMed ID: 17352143.
    Abstract:
    A 62-year-old woman with hypertrophic obstructive cardiomyopathy suffered from repeated heart failure. Preoperative echocardiogrphy demonstrated pressure gradient (PG) of 64 mmHg in left ventricular cavity, mitral regurgitation II, and tricuspid regurgitation II with an ejection fraction of 74%. Cardiac catheterizaition revealed cardiac index of 1.50 l/min/m2. She was recommended mitral valve replacement (MVR) because she was hospitalized several times for heart failure. She underwent MVR, tricuspid annuloplasty, and modified maze operation. Postoperative PG fell till 15 mmHg in echocardiogrphy. Postoperative cardiac catheterization revealed cardiac index of 2.00 l/min/m2. MVR contributed to decrease of PG in intraventricular cavity and increase of cardiac output. Postoperative cardiac status was classified as New York Heart Association (NYHA) class I-II.
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