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- Supravalvular aortic stenosis (SVAS) is a type of heart defect characterized by a narrowing of the section of the aorta just above the aortic valve. It is the least common type of aortic stenosis and is often associated with other cardiovascular anomalies. SVAS can be diagnosed using echocardiography or MRI12.Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.Supravalvular aortic stenosis (SVAS) is a type of heart defect. It is characterized by a narrowing (stenosis) of the section of the aorta just above the valve that connects the aorta to the heart (aortic valve). The severity of SVAS varies from person to person.rarediseases.info.nih.gov/diseases/743/supravalvul…Supravalvular aortic stenosis is a congenital obstructive narrowing of the aorta just above the aortic valve and is the least common type of aortic stenosis. It is often associated with other cardiovascular anomalies and is one of the characteristic findings of Williams syndrome. The diagnosis can be made by echocardiography or MRI.en.wikipedia.org/wiki/Supravalvular_aortic_stenosis
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WEBPatients with significant vertebral artery asymmetry (SVAA, difference in VA diameters > 1.0 mm) (n = 80) and patients with normal VA diameter (n = 80) were also recruited. …
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