aortic valve regurgitation definition
Aortic insufficiency is a heart valve disease in which the aortic valve does not close tightly. This leads to the backward flow of blood from the aorta (the largest blood vessel) into the left ventricle (a chamber of the heart). Aortic valve prolapse; Aortic regurgitation. Surgery to repair or replace the aortic valve corrects aortic insufficiency. The decision to have aortic valve replacement depends on your symptoms and the condition and function of your heart. You may also need surgery to repair the aorta if it is widened. 1 doctor agreed: 1  AORTIC REGURGITATION: Aortic regurgitation is reflux of blood through an incompetent aortic valve into the left ventricle during ventricular diastole (relaxation). During ventricular systole (contraction), blood is pumped from the left ventricle into the aorta. Because of a leaky aortic valve, the pumped blood returns to the left ventricle. Aortic regurgitation (AR) is the diastolic flow of blood from the aorta into the left ventricle (LV). Regurgitation is due to incompetence of the aortic valve or any disturbance of the valvular apparatus (eg, leaflets, annulus of the aorta) resulting in the diastolic flow of blood into the left ventricular chamber. Abnormalities of the ascending aorta, in the absence of valve pathology, may also cause AR. aortic regurgitation. the flow of blood from the aorta back into the left ventricle during diastole, resulting from a failure of the aortic valve to close completely. Also called aortic insufficiency. Effects of aortic regurgitation. Abnormal back flow of blood from the aorta through the aortic valve. In developing countries the valvular defect is mainly due to as complication of rheumatic fever; in Western countries the defect is usually congenital. mitral regurgitation backflow of blood from the left ventricle into the left atrium, owing to insufficiency of the mitral valve; it may be acute or chronic, and is usually due to mitral valve prolapse, rheumatic heart disease, or a complication of cardiac dilatation. Aortic valve regurgitation. In aortic valve regurgitation, the aortic valve does not close completely. The valve lets blood leak back (regurgitate) into the heart. In a normal heart, the aortic valve opens to let oxygen-rich blood flow from the left ventricle into the aorta. The aortic valve closes completely when the heart rests between beats. aortic insufficiency inadequate closure of the aortic valve, permitting aortic regurgitation. coronary insufficiency decreased supply of blood to the myocardium resulting from constriction or obstruction of the coronary arteries, but not accompanied by necrosis of the myocardial cells. Called also myocardial ischemia. Aortic regurgitation is leakage of the aortic valve each time the left ventricle relaxes. A leaking (or regurgitant) aortic valve allows blood to flow in two directions. Oxygen-rich blood either flows out through the aorta to the body — as it should — but some flows backwards from the aorta into the left ventricle when the ventricle relaxes. functional incompetence of the aortic valve, with resulting regurgitation of blood from the aorta during left ventricular diastole; may be congenital, inflammatory (for example, in rheumatic fever or SLE), or degenerative. See: aortic regurgitation.
Aortic regurgitation is reflux of blood through an incompetent aortic valve into the left ventricle during ventricular diastole.