Subaortic stenosis is the second most common form of left ventricular outflow obstruction. It occurs when the flow of blood from the heart’s pumping chamber or left ventricle is restricted. This obstruction is in the area of the heart under the aortic valve.

Subvalvular aortic stenosis (SAS) is one of the common adult congenital heart diseases, with a prevalence of 6.5%. It is usually diagnosed in the first decade of life. Echocardiography is the test of choice to diagnose SAS.

Subvalvar aortic stenosis can be induced by a fixed stenosis or may have a dynamic component that is primarily due to the genetic disease hypertrophic cardiomyopathy (previously called idiopathic hypertrophic subaortic stenosis).

Subvalvular aortic stenosis (AS) is a rare congenital heart defect in which the left ventricle is narrowed below the level of the aortic valve resulting in obstruction to blood flow out of the heart. The condition is also known as subaortic stenosis.

Apr 6, 2024 · Subvalvular aortic stenosis (SAS) secondary to subaortic membrane is a rare finding with a prevalence of 6.5% among adult congenital heart diseases and accounts for 14% of Left ventricular outflow tract (LVOT) obstructions.

Nov 11, 2024 · Subaortic stenosis (SAS), also known as subvalvular aortic stenosis, is a rare condition characterized by mostly a membrane just beneath the aortic valve. 1, 2 The most common form is known as discrete SAS. This condition often leads to a fixed obstruction of blood flow across the left ventricular outflow tract (LVOT).

Subaortic stenosis, also called subvalvular aortic stenosis or SAS, is a heart disorder affecting 1 percent of infants born with congenital heart defects. In this type of heart disease, the passage between the left ventricle of the heart and the aorta narrows.

Subvalvular aortic stenosis refers to outflow obstruction below the aortic valve and is divided into membranous and fibromuscular origin. Membranous subvalvular stenosis is the most common type and accounts for the majority of subvalvular aortic stenosis.

May 29, 2023 · Subvalvular aortic stenosis (SAS), also called subaortic stenosis, is a rare disorder seen in infants. In most cases, there is a membrane (usually muscular) just below the aortic valve which causes a fixed obstruction to the blood flow across the left ventricular outflow tract.

Subvalvular aortic stenosis (SAS) is a congenital heart defect that causes fixed form of hemodynamically significant left ventricular outflow tract (LVOT) obstruction with progressive course. It has a spectrum of anatomy.