Aortic stenosis overview

Aortic Stenosis Microchapters
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Overview
Historical Perspective
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Pathophysiology
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Differentiating Aortic Stenosis from other Diseases
Epidemiology and Demographics
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Aortic Valve Area
Aortic Valve Area Calculation
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Transcatheter Aortic Valve Replacement (TAVR) TAVR vs SAVR Critical Pathway Patient Selection Imaging Evaluation Valve Types TAVR Procedure Post TAVR management AHA/ACC Guideline Recommendations
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editors-In-Chief: Claudia P. Hochberg, M.D. [2]; Abdul-Rahman Arabi, M.D. [3]; Keri Shafer, M.D. [4]; Priyamvada Singh, MBBS [5]; Assistant Editor-In-Chief: Kristin Feeney, B.S. [6]

Overview

The aortic valve controls the direction of blood flow from the left ventricle to the aorta. When functioning appropriately, 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.