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Clin Cardiol. 1994 Jun;17(6):330-6.

Pathology of mitral valve stenosis and pure mitral regurgitation--Part I.

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  • 1Cardiovascular Pathology Registry, St. Vincent's Hospital, Indianapolis, Indiana.

Abstract

This two-part article examines the histologic and morphologic basis for stenotic and purely regurgitant mitral valves. In Part I, conditions producing mitral valve stenosis are reviewed. In over 99% of stenotic mitral valves, the etiology is rheumatic disease. Other rare causes of mitral stenosis include congenital malformed valves, active infective endocarditis, massive annular calcium, and metabolic or enzymatic abnormalities. In Part II, conditions producing pure mitral regurgitation will be discussed. In contrast to the few causes of mitral stenosis, the causes of pure (no element of stenosis) mitral regurgitation are multiple. Some of the conditions producing pure regurgitation include floppy mitral valves, infective endocarditis, papillary muscle dysfunction, rheumatic disease, and ruptured chordae tendinae.

PMID:
8070151
[PubMed - indexed for MEDLINE]
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