supravalvular aortic stenosis

supravalvular aortic stenosis
a rare form of aortic stenosis occurring above the aortic valve, usually caused by a complete circumferential fibrous ring of constricting tissue at the level of the sinus of Valsalva. See also Williams syndrome, under syndrome.

Medical dictionary. 2011.

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  • supravalvular aortic stenosis syndrome — Williams s …   Medical dictionary

  • Aortic stenosis — Narrowing (stenosis) of the heart valve between the left ventricle of the heart and the aorta. This narrowing impedes the delivery of blood through the aorta to the body and makes it tough for the heart to carry out this Herculean task. A normal… …   Medical dictionary

  • aortic stenosis — Pathol. abnormal narrowing of the aorta, esp. of its orifice, usually as a result of rheumatic fever or embryologic anomalies. * * * ▪ pathology       narrowing of the passage between the left lower chamber (ventricle) of the heart and the aorta …   Universalium

  • Subvalvular aortic stenosis — Subaortic stenosis (SAS) Canine subvalvular aortic stenosis (SAS)Rottweilers are a breed which has a high incidence of an abnormal heart sound, or murmur, caused by Subaortic stenosis (SAS).SAS being a congenital defect, means that is present… …   Wikipedia

  • supravalvular — SYN: supravalvar. * * * su·pra·val·vu·lar valv yə lər adj situated or occurring above a valve <supravalvular aortic stenosis> …   Medical dictionary

  • Stenosis — A narrowing, as in aortic stenosis (narrowing of the aortic valve in the heart), pulmonary stenosis (narrowing of the pulmonary valve in the heart), pyloric stenosis (narrowing of the outlet of the stomach), spinal stenosis (narrowing of the… …   Medical dictionary

  • SVAS — supravalvular aortic stenosis; supraventricular aortic stenosis …   Medical dictionary

  • SVAS — • supravalvular aortic stenosis; • supraventricular aortic stenosis …   Dictionary of medical acronyms & abbreviations

  • Williams syndrome — Wil·liams syndrome wil yəmz n a rare genetic disorder characterized esp. by hypercalcemia of infants, heart defects (as supravalvular aortic stenosis), characteristic facial features (as an upturned nose, long philtrum, wide mouth, full lips, and …   Medical dictionary

  • syndrome — The aggregate of symptoms and signs associated with any morbid process, and constituting together the picture of the disease. SEE ALSO: disease. [G. s., a running together, tumultuous concourse; (in med.) a concurrence of symptoms, fr. syn,… …   Medical dictionary

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