mitral stenosis

noun Pathology.
abnormal narrowing of the mitral valve usually resulting from disease, as rheumatic fever, and obstructing the free flow of blood from the atrium to the ventricle.

Origin:
1870–75

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American Heritage
Medical Dictionary

mitral stenosis n.
A narrowing of the mitral valve usually caused by rheumatic fever and resulting in an obstruction to the flow of blood from the left atrium to the left ventricle.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Britannica
Encyclopedia

mitral stenosis

narrowing of the mitral valve, the function of which is to permit blood to flow from the atrium, or upper chamber, to the ventricle, or lower chamber, of the left side of the heart and to prevent its backflow. Narrowing of the mitral valve is usually a result of rheumatic fever; rarely, the narrowed valve is a congenital defect. The condition, most common in women under 45, is diagnosed by recognition of typical heart sounds and confirmed by certain patterns that appear in echocardiography or electrocardiography.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Mitral stenosis is a heart valve disorder that involves the mitral valve.
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