Supravalvular aortic stenosis (SVAS) is the major cardiac ... 34-member family in which 12 have SVAS documented by ultrasound (US). Four others have SVAS by report of cardiac US done elsewhere.

Aortic stenosis can also be acquired ... congenital heart defects can be seen even before birth on a prenatal ultrasound. Significant congenital abnormalities may cause severe symptoms at or ...