Intermediate Technical In the Industry Vocabulary Test

aortic stenosis

Narrowing of the aortic valve opening that restricts blood flow from the left ventricle to the aorta.

Full Definition

Aortic stenosis is a valvular heart disease characterized by narrowing of the aortic valve orifice, impeding left ventricular outflow. The condition progresses from mild to severe based on valve area, pressure gradients, and velocity measurements. Common causes include calcific degeneration, congenital bicuspid valve, and rheumatic disease. Severe aortic stenosis typically requires surgical intervention when symptomatic or when left ventricular function becomes compromised. The classic symptom triad includes dyspnea, angina, and syncope, though many patients remain asymptomatic until advanced stages.

Usage

Usage note: Distinguish from aortic sclerosis (thickening without obstruction) and specify severity when mentioned.

In Context

"Echocardiography revealed severe aortic stenosis with a valve area of 0.8 cm²." — Diagnostic report
"The patient's symptomatic severe aortic stenosis warranted urgent surgical evaluation." — Consultation note

Also known as

Contrasted with

aortic regurgitation aortic insufficiency

Don't confuse with

aortic sclerosis subaortic stenosis

aortic root replacement ← Back to glossary aortic valve replacement