Austin Flint murmur

Austin Flint murmur
Differential diagnosisaortic regurgitation

In cardiology, an Austin Flint murmur is a low-pitched rumbling heart murmur which is best heard at the cardiac apex. It can be a mid-diastolic or presystolic murmur. It is associated with severe aortic regurgitation, although the role of this sign in clinical practice has been questioned.