Problem: Pulmonary Valve Stenosis

Illustration of Valves of the Heart

What is pulmonary valve stenosis (also called PS)?

Pulmonary stenosis is a condition caused by a narrowing of the pulmonary valve opening. Pulmonary stenosis restricts blood flow from the lower right chamber (called the ventricle) to the pulmonary arteries, which delivers blood to the lungs. It is most commonly the result of a congenital heart defect. However, rarely PS can develop as a result of infections like rheumatic fever (PDF) or carcinoid syndrome.

Who is at risk for pulmonary stenosis?

Pulmonary stenosis, which is rare among adults, is usually caused by a birth defect, also called a congenital heart defect. Moderate to severe PS is most often diagnosed during childhood due to the loud heart murmur associated with the condition.

What are the symptoms?

If PS is mild, there probably won't be any noticeable symptoms. If it's moderate or severe, you may experience some of the following:

  • Heart murmur
  • Low tolerance for exercise
  • Fatigue
  • Fainting
  • Shortness of breath
  • Chest pain or palpitations

What are the treatments and probable outcomes?

Treatment is needed when the pressure in the right ventricle is high (whether or not there are symptoms). High pressure in the ventricle can lead to enlargement of the heart and heart failure.

Ongoing Follow Up Care

Good news: People with mild pulmonary stenosis can often maintain heart function without getting worse. However, depending on the severity of the stenosis, the valve may be repaired or replaced  by surgery, or by a minimally invasive procedure.

Valve Stenosis: When a Heart Valve is Too Narrow