ENTITIES Normal function Aortic stenosis-senile Aortic stenosis-bicuspid Aortic regurgitation Mitral stenosis Mitral prolapse Mitral flail Mitral regurgitation Valvular infection Prosthetic valves Cardiomyopathy Ischemia-anterior Ischemia-inferior Ischemia-aneurysm Post-infarct VSD IHSS Pericardial effusion Masses		Senile aortic stenosis		Notes: Senile aortic stenosis is characterized by heavy calcification of an apparently three-leafed aortic valve causing it to be immobile and restricting its orifice. The etiology of this form of aortic stenosis occurs in the elderly (generally > 70 years). A normal aortic valve has a cross-sectional area of about 3 cm sq. Critical aortic stenosis is considered when the valve area falls below 1 cm sq. If ventricular contractility is normal, a pressure gradient across that valve in excess of 60 mm Hg. will usually be measured at catheterization.

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July 10, 1999 (PL) v. 002