| SAS | sarcoma amplified sequence; self-rating anxiety scale; short arm splint; Sklar Aphasia Scale; sleep ... |
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| SVAS | supravalvular aortic stenosis; supraventricular aortic stenosis |
| SVAS | Supravalvular aortic stenosis |
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| supravalvular | Above the valves, either pulmonary or aortic. Synonym: supravalvular. (05 Mar 2000) |
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| supravalvular aortic stenosis | <radiology> Types: localised hourglass narrowing just above aortic sinuses, discrete fibrous membrane above sinuses of Valsalva, diffuse tubular hypoplasia of ascending aorta and branching arteries associated with: peripheral pulmonary stenosis, valvular and discrete subvalvular aortic stenosis, Marfan syndrome, Williams syndrome findings: dilatation and tortuosity of coronary arteries (may undergo early atherosclerotic degeneration secondary to high pressure), narrowing of the supravalvular area (normal root diameter: 20-37mm), normal movement of cusps (12 Dec 1998) |
| supravalvular stenosis | Stenosis distal to the aortic valve due usually to a congenital membrane. Patients usually have a kind of "elfin" facies and resemble each other more than they do members of their family. (05 Mar 2000) |
| supravalvular aortic s. |
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.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| supravalvular aortic stenosis s. |
Williams s.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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