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Definition
By Mayo Clinic staffPulmonary valve stenosis is a condition in which the flow of blood from your heart to your lungs is obstructed by a deformed pulmonary valve.
The disorder is usually present at birth. Adults occasionally have pulmonary valve stenosis as a complication of another illness.
Pulmonary valve stenosis ranges from mild and without symptoms to severe and debilitating, with most cases being mild. Mild pulmonary stenosis doesn't usually worsen over time, but moderate and severe cases may progress and require surgery. Fortunately, treatment is highly successful, and most people with pulmonary valve stenosis can expect to lead normal lives.
