Aortic Valve Stenosis

Essay specific features

 

Issue:

Science

 

Written by:

Henry R

 

Date added:

February 9, 2016

 

Level:

University

 

Grade:

A

 

No of pages / words:

5 / 1236

 

Was viewed:

8559 times

 

Rating of current essay:

 
Essay content:

Aortic valve stenosis occurs in approximately 5 out of every 10,000 people.1 It occurs more commonly in males than females. Symptoms do not often appear until middle age or older. Aortic valve stenosis is characterized by the left ventricular pressure being much greater that the aortic pressure during left ventricular ejection...
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The pressure gradient across the stenotic lesion results from both increased resistance (related to narrowing of the valve) and turbulence distal to the valve. The magnitude of the pressure changes is determined by the severity of the stenosis and the flow rate across the valve. Severe aortic stenosis results in reduced ventricular stroke volume due to increased afterload, increased end-systolic volume, and a compensatory increase in end-diastolic volume and pressure...
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