Pulmonary valve stenosis is when the pulmonary valve is thickened or can't open fully.
The heart pumps blood out of the right side of the heart, through the pulmonary valve, to the lungs. When this valve is not working properly, it can decrease the amount of blood going to the lungs for oxygen or increase the work the heart muscle has to do to maintain it. Blood can also back up into the heart. The condition can be mild to severe.
Pulmonary stenosis is caused by abnormal development of the heart valve before birth. In most cases, it is not known exactly why it happens.
Factors that may increase the risk of pulmonary valve stenosis may include:
Symptoms may include:
You will be asked about your child’s symptoms and medical history. A physical exam will be done. A heart valve problem may be suspected if there is a heart murmur.
Images of your child's heart and its structures may be taken. This can be done with:
If your child has mild pulmonary valve stenosis, immediate treatment may not be needed. Your child will be monitored to look for potential problems. Other treatment options include:
Your child may need surgery to prevent heart damage. Common types of heart valve surgery include:
There are several steps your child can take to avoid some of the complications of pulmonary valve stenosis:
Ways to prevent heart defects are not entirely clear and may not always be possible. However, good prenatal care may reduce your risk of having a child with a heart defect. During pregnancy:
American Heart Association
Family Doctor—American Family Physician
Canadian Cardiovascular Society
Heart and Stroke Foundation of Canada
Pulmonary stenosis. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed. Updated February 14, 2014. Accessed November 7, 2014.
Pulmonary stenosis. Johns Hopkins University, Cove Point Foundation website. Available at: http://www.pted.org/?id=pulmonarystenosis3. Updated October 24, 2011. Accessed November 7, 2014.
Pulmonary stenosis. Lucile Packard Children’s Hospital at Stanford website. Available at: http://www.lpch.org/DiseaseHealthInfo/HealthLibrary/cardiac/ps.html. Accessed November 7, 2014.
Pulmonary valve stenosis. American Heart Association website. Available at: http://www.heart.org/HEARTORG/Conditions/CongenitalHeartDefects/AboutCongenitalHeartDefects/Pulmonary-Valve-Stenosis_UCM_307034_Article.jsp. Updated June 24, 2013. Accessed November 7, 2014.
Last reviewed November 2014 by Kari Kassir, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.