William C. Roberts, M.D.
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Obstruction to left ventricular outflow may occur at sites above and below the aortic valve as well as at the valve itself. Since there is difference in anatomy and in surgical treatment for obstruction at each of these sites, the term "aortic stenosis" is best used only in a general sense and should be preceded by the designations "valvular," "supravalvular," or the prefix "sub" depending on the site of obstruction.
The least common form of "aortic" stenosis is the supravalvular variety. Including the two patients studied at the Clinical Center, there is necropsy data in the literature from only 11
Roberts WC. Aortic Stenosis: A Re-evaluation of Its Pathology.. Ann Intern Med. ;60:319. doi: 10.7326/0003-4819-60-2-319_2
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Published: Ann Intern Med. 1964;60(2_Part_1):319.
Cardiology, Valvular Heart Disease.
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