Right sided Austin Flint murmur

Brief Review Classical Austin Flint murmur is a mid diastolic murmur in the mitral area heard in those with free aortic regurgitation. By similar analogy, a mid diastolic murmur in pulmonary regurgitation can be called a right sided Austin Flint murmur. Mid diastolic and presystolic murmurs could be demonstrated in 7 out of 14 cases of pulmonary regurgitation in an old study by cardiac catheterization and phonocardiography [1]. All these patients had pulmonary hypertension. The right sided Austin Flint murmur was thought to be due to functional tricuspid stenosis caused by the pulmonary regurgitation. The antegrade flow through a closing tricuspid valve due to pulmonary regurgitation was proposed as the reason for the murmur. A previous reports of right sided Austin Flint murmur documented by intracardiac phonocardiography is available [2]. Reference Kambe T, Hibi N, Fukui Y, Nishimura K, Ichimiya S, Toguchi M, Sakamoto N. Clinical study on the right-sided Austin Flint murmur using intracardiac phonocardiography. Am Heart J. 1979 Dec;98(6):701-7. Green EW, Agruss NS, Adolph RJ. Right-sided Austin Flint murmur. Documentation by intracardiac phonocardiography, echocardiography and postmortem findings. Am J Cardiol. 1973 Sep 7;32(3):370-4.
Source: Cardiophile MD - Category: Cardiology Authors: Tags: General Cardiology Source Type: blogs