Question

The most common etiology for chronic aortic insufficiency is:

A. Idiopathic dilatation of the aortic root and aortic annulus
B. Infective endocarditis
C. Marfan's syndrome
D. Trauma

Answer 1

The most common etiology for chronic aortic insufficiency is the idiopathic dilatation of the aortic root and aortic annulus.

Step-by-step explanation:

The most common etiology for chronic aortic insufficiency is the idiopathic dilatation of the aortic root and aortic annulus, option A. Aortic insufficiency occurs when the aortic valve fails to close properly, causing blood to leak back into the left ventricle during diastole. This can be caused by various factors, such as congenital defects, rheumatic heart disease, and degenerative changes in the aortic valve.