In principle, the blood volume passing through a stenotic valve (aortic stenosis) is equal to the blood volume proximal to the stenosis or in the LVOT (Figure 4). The stroke volume is equal to ...

Aortic stenosis (AS) occurs when the orifice of the aortic valve is significantly reduced due to the failure of the aortic valve leaflets to open fully during systole. This causes an effective ...

In patients greater than age 65, more than 90% of aortic stenosis involves trileaflet valves which have developed heavy calcification. [5] In these instances the calcium deposits are thought to ...

The only effective treatment for aortic stenosis is removal of the mechanical obstruction. To this end, only aortic valve replacement (AVR) has been shown to achieve this while reducing mortality.

Aortic stenosis is a condition that occurs when the opening of the aortic valve becomes narrowed. The aortic valve is a heart ...

DAVID MONTGOMERY: Aortic stenosis is a tightening of one of the four major valves of the heart. The aortic valve is particularly important because the aortic valve is the gateway to the rest of ...

Recent research from Karl Landsteiner University of Health Sciences (KL Krems) provides important new insights into how aortic valve size is associated with the degree of valve calcification in ...

Kerry Breen is a news editor at CBSNews.com. A graduate of New York University's Arthur L. Carter School of Journalism, she previously worked at NBC News' TODAY Digital. She covers current events ...