realized in has occurrent part disturbed anterograd blood flow through aortic valve during left ventricular systole aortic valve improper opening during left ventricular systole aorta pathological process congenital disease supravalvular aortic stenosis OMIM:185500 disease_ontology MSH:D021921 OMIM:194050 NCI:C85176 UMLS_CUI:C0003499 SNOMEDCT_2010_1_31:268185002 SNOMEDCT_2010_1_31:204436002 Supravalvar aortic stenosis (disorder) Supra-valvular aortic stenosis A congenital disease involving the narrowing (stenosis) of aorta, hindering the opening of the aortic valve. DOID:1929 Supravalvular aortic stenosis is not classified as an aortic valve stenosis: although the narrowing of the section of the aorta at the exit of the aortic valve implies some improper opening of the aortic valve, the aortic valve is (in general) healthy (there is no disorder nor pathological process inside it). However, this improper opening of the aortic valve is a pathological process that happens inside the heart; therefore, supravalvular aortic stenosis is classified as a heart disease. disease course