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7 Cards in this Set
- Front
- Back
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Most common cause |
Myxomatous degeneration of the mitral valve. |
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Features |
1. Pansystolic murmur 2. Soft S1 3. Split S2 |
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Features of severity. |
As the mitral regurgitation becomes more severe the left ventricle enlarges. 1. Displaced Apex beat. 2. Systole thrill. |
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Most common reason for acute mitral regurgitation. |
Rupture of the papillary muscles, inferior posterior infarction. |
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Reported incidence of papillary muscle rupture |
1% |
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Which papillary muscle is most likely to rupture? |
Posteromedial papillary muscle is twice as likely to rupture. |
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Why? |
Posteromedial papillary muscle is frequently supplied by only one coronary artery. (Right coronary artery). But the the anterolateral papillary muscle is most opensubtitle by two arterial systems. (LAD and circumflex) |
