Thursday, January 11, 2007

Pulmonary valve stenosis

Pulmonary valve stenosis is a medical condition in which outflow of blood from the right ventricle of the heart is obstructed at the level of the pulmonic valve. This results in the reduction of flow of blood to the lungs. Symptoms include jugular venous distention, cyanosis (usually visible in the nailbeds), and general symptoms of lowered oxygenation of the blood. When the stenosis is mild, it can go unnoticed for many years. If stenosis is severe, you may see sudden fainting or dizziness if exercised too much. Valve replacement or surgical repair (depending upon whether the stenosis is in the valve or vessel) may be indicated. Stenosis can occur in dogs as well as in humans.
Contents

1 Causes
2 See also


Causes
The most common cause is congenital. If severe, it can lead to blue baby syndrome. It can also be secondary to other conditions such as endocarditis.
See also
Aortic valve stenosis Mitral regurgitation
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