However, when the mitral valve leaflets calcify, mitral stenosis or regurgitation can occur. Mitral stenosis is caused by tethering of the valve leaflet tips which impairs blood flow through the mitral valve and causes blood to back up into the lungs. The degree of severity of both mitral stenosis and regurgitation determines whether congestive heart failure develops. We have no specific strategies to prevent MAC and the resultant dysfunction of the mitral valve that may occur with it. I hope you find this information useful.
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