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Mitral Regurgitation |
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Mitral Regurgitation |
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Brief Information |
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| Description |
Valve incompetence allows backflow from ventricle to atrium. Caused by rheumatic fever, myocardial infarction, myxoma |
| Type and Detection | Heard best at apex; loudest there, transmitted into left axilla. |
| Findings on Examination |
Holosystolic, plateau-shaped intensity, high pitch, harsh blowing quality, often quite loud; radiates from apex to base or to left axilla; thrill may be palpable at apex during systole. If mild, late systolic murmur crescendos; if severe, early systolic intensity decrescendos; apical thrust more to left and down in ventricular hypertrophy. |
| Heart Sound Components |
S1 intensity diminished; S2 more intense with P2 often accented; S3 often present; S3-S4 gallop common in late disease. |
| Compare with |
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| Normal Heart Sound (441K) |
| Aortic Stenosis (392K) |
| Mitral Stenosis (424K) |
| Pulmonary Stenosis (438K) |
| Aortic Regurgitation (491K) |
Y.E. Kocabasoglu and R.H. Henning
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