Problem: Pulmonary Valve Stenosis

Updated:Sep 21,2016
what's the problem?
heart valves diagram

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 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.

This content was last reviewed May 2016.

Heart Valve Stenosis

If you've been told you have valve stenosis, learn what it means and why it matters to your heart health.
Subscribe to Heart Insight magazine and monthly e-newsletter
Heart Insight logo
Our digital magazine delivers helpful articles and the latest news on keeping your heart healthy. Sign up today!



By clicking submit below you agree to the Terms and Conditions and Privacy Policy

Watch, Learn and Live

Interactive Cardiovascular Library

Our Interactive Cardiovascular Library has detailed animations and illustrations to help you learn about conditions, treatments and procedures related to heart disease and stroke.

Start exploring today