aortic valve disease aortic valve stenosis Aortic valve stenosis is a aortic valve disease caused by the incomplete opening of the aortic valve. The aortic valve controls the direction of blood flow from the left ventricle to the aorta. When in good working order, the aortic valve does not impede the flow of blood between these two spaces. Under some circumstances, the aortic valve becomes narrower than normal, impeding the flow of blood. This is known as aortic valve stenosis, or aortic stenosis, often abbreviated as AS. Stenosed aortic valve Valve Stenosis, Aortic Valve Stenoses, Aortic DOID:1712 MSH:D001024 GeneRIF:14734048 Aortic valve stenosis, NOS GeneRIF:15311863 James Malone URI: http://www.ebi.ac.uk/cellline#aortic_stenosis Aortic valve stenosis (disorder) Stenoses, Aortic Aortic valve stenosis is a aortic valve disease caused by the incomplete opening of the aortic valve. The aortic valve controls the direction of blood flow from the left ventricle to the aorta. When in good working order, the aortic valve does not impede the flow of blood between these two spaces. Under some circumstances, the aortic valve becomes narrower than normal, impeding the flow of blood. This is known as aortic valve stenosis, or aortic stenosis, often abbreviated AS. SNOMEDCT:60573004 aortic stenosis GeneRIF:11903341 A pathological constriction that can occur above (supravalvular stenosis), below (subvalvular stenosis), or at the AORTIC VALVE. It is characterized by restricted outflow from the LEFT VENTRICLE into the AORTA. AS AS - Aortic stenosis