Severe mitral or aortic valve regurgitation, or both, requiring valve replacement for infective endocarditis complicating hypertrophic cardiomyopathy. Journal of the American College of Cardiology [J Am Coll Cardiol] Journal article | | Title | Severe mitral or aortic valve regurgitation, or both, requiring valve replacement for infective endocarditis complicating hypertrophic cardiomyopathy. | | Author(s) | Roberts WC, Kishel JC, McIntosh CL, Cannon RO, Maron BJ | | Institution | Pathology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland. | | Source | J Am Coll Cardiol 1992 Feb; 19(2):365-71. | | MeSH | Adult
Aortic Valve
Aortic Valve Insufficiency
Cardiomyopathy, Hypertrophic
Endocarditis, Bacterial
Female
Heart Valve Prosthesis
Humans
Male
Middle Aged
Mitral Valve
Mitral Valve Insufficiency
| | Abstract | Certain clinical and morphologic findings are described in 11 patients with hypertrophic cardiomyopathy complicated by infective endocarditis that produced severe mitral or aortic valve regurgitation, or both, necessitating valve replacement. All 11 patients had changes in the operatively excised valve or valves characteristic of healed infective endocarditis. The infection involved only the mitral valve in seven patients, only the aortic valve in three patients and both valves in one patient. Study of the operatively excised mitral valves indicated that the healed vegetations were located most commonly on the left ventricular aspects of the anterior mitral leaflet, indicating that vegetation had formed at contact points of this leaflet with mural endocardium of the left ventricular outflow tract. In all 11 patients, the infective endocarditis either worsened preexisting valve regurgitation or initiated valve regurgitation and led to worsened signs and symptoms of cardiac dysfunction, necessitating valve replacement. Functional class improved in the nine patients who survived 7 to 101 months after valve replacement. Hypertrophic cardiomyopathy appears to be a factor predisposing to infective endocarditis. Patients with hypertrophic cardiomyopathy should receive prophylactic antibiotic therapy during procedures that predispose to infective endocarditis. | | Language | eng | | Pub Type(s) | Journal Article
| | PubMed ID | 1732366 |
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