Which diastolic murmur is associated with aortic insufficiency?

The diastolic murmur associated with aortic insufficiency is best characterized by its specific sound and timing within the cardiac cycle. Aortic insufficiency provides a unique physiological setting where the aortic valve fails to close properly, leading to the backflow of blood from the aorta into the left ventricle during diastole. This creates a characteristic diastolic murmur best heard along the left sternal border.

In contrast to mitral stenosis, which presents with a different kind of murmur that occurs due to the narrowing of the mitral valve causing turbulence during diastole when the left atrium empties into the left ventricle, the murmur associated with aortic insufficiency is not specific to mitral stenosis. Mitral regurgitation involves the backflow of blood from the left ventricle into the left atrium during systole, which is distinctly different from the diastolic murmur seen in aortic insufficiency.

An atrial septal defect carries its own unique hemodynamic consequences, primarily featuring a left-to-right shunt that may create a characteristic murmur from increased blood flow across the right heart structures but does not create a diastolic murmur like that of aortic insuff