ICD-11 definition : Aortic insufficiency is the leaking of the aortic valve of the heart that causes blood
to flow in the reverse direction during ventricular diastole, from the aorta into
the left ventricle. Rheumatic fever causes the valve cusps to retract.;
Aortic insufficiency is the leaking of the aortic valve of the heart that causes blood
to flow in the reverse direction during ventricular diastole, from the aorta into
the left ventricle. Rheumatic fever causes the valve cusps to retract.