Ency. home > Disease > P > Pulmonary valve stenosis

Pulmonary valve stenosis    See images

Overview | Symptoms | Treatment | Prevention

Alternative names:

Valvular pulmonary stenosis; Heart valve pulmonary stenosis

Definition:

A condition, usually present at birth, in which outflow of blood from the right ventricle of the heart is obstructed at the level of the pulmonic valve (valve which separates the heart from the pulmonary artery).

Causes and Risks

Pulmonary stenosis is most often caused by a malformation during fetal development for unknown reasons. A narrowing may occur in the pulmonary valve or below the pulmonary valve at the pulmonary artery. The defect may occur alone, or with other heart defects. The condition can be mild or severe. It affects about 1 out of 8000 infants. Pulmonary stenosis can occur later in life as a result of conditions that cause damage or scarring of the heart valves. This includes rheumatic fever, endocarditis, and other disorders.

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