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Papillary muscle dysfunction and rupture in the elderly

Papillary muscle insufficiency refers to the clinical syndrome of mitral insufficiency caused by papillary muscle disease, which can not maintain the normal closure of mitral valve due to its systolic dysfunction or change of papillary muscle orientation. Clinical papillary muscle dysfunction refers to left ventricular papillary muscle disease. Due to the contraction of the papillary muscle, the pulling valve does the most work, but because it is in the innermost layer of the ventricle, the blood supply comes from the terminal part of the coronary artery. When the coronary blood supply is reduced, the papillary muscle ischemia and necrosis are most likely to occur.


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