Aortic stenosis represents a condition in which flow of blood out of the left ventricle into the aorta is limited by the flow resistance presented by a narrowed aortic valve. This limits any increase of cardiac output in patients with more severe degrees of aortic stenosis, and so the cardiac output is said to be “fixed” in these patients. In more severe degrees of stenosis the cardiac output is reduced below normal levels even at rest [see chapter 3.1 for clinical manifestations of reduced cardiac output].
KeywordsCardiac Output Arterial Blood Pressure Angina Pectoris Aortic Stenosis NYHA Class
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