Why the study?
Does echocardiography of the mitral valve differentiate organic mitral stenosis from an Austin Flint murmur in patients with aortic regurgitation?
Does echocardiography of the mitral valve differentiate organic mitral stenosis from an Austin Flint murmur in patients with aortic regurgitation?
Echocardiography of the mitral valve can reliably distinguish between organic mitral stenosis and an Austin Flint murmur in patients with aortic regurgitation.
Echocardiographic mitral features may distinguish organic stenosis from Austin Flint murmur in aortic regurgitation; leaves open prospective validation before practice change.
Ultrasonic echocardiograms from the anterior cusp of the mitral valve have been obtained in 75 patients with aortic regurgitation in whom there was haemodynamic or surgical confirmation, or both, of the state of the mitral valve. Coincident mitral stenosis could be recognized from the echocardiogram in all cases by a slow diastolic closure rate and widening of the echo from the anterior mitral cusp. In many of these patients delayed systolic closure of the mitral valve was also seen. All patients with an Austin Flint murmur had either premature systolic closure of the valve and an accelerated diastolic closure rate or diastolic oscillations of the valve. The amplitude of excursion of the anterior mitral cusp was normal in patients with an Austin Flint murmur and reduced in patients with organic mitral stenosis.
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Pridie et al. (1971) studied this question.
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