What are the types of pulmonary stenosis?
There are four different types of pulmonary stenosis:
- Valvar pulmonary stenosis. The valve leaflets are thickened and/or narrowed.
- Supravalvar pulmonary stenosis. The pulmonary artery just above the pulmonary valve is narrowed.
- Subvalvar (infundibular) pulmonary stenosis.
- Branch peripheral pulmonic stenosis.
What is the most common cause of pulmonary stenosis?
Pulmonary valve stenosis is most often a congenital heart defect. The exact cause is unclear. The pulmonary valve doesn’t develop properly as the baby is growing in the womb. The pulmonary valve is made of three thin pieces of tissue called flaps (cusps).
What happens during pulmonary stenosis?
In pulmonary stenosis (pul-muh-NAIR-ee stuh-NO-sis), the pulmonary valve is too small, too narrow, and can’t open all the way. This causes the right ventricle to pump harder to send blood out to the lungs. Over time, this can cause thickening of the right ventricle and strain the heart.
How pulmonary stenosis is diagnosed?
Tests to diagnose pulmonary valve stenosis may include: Electrocardiogram (ECG or EKG). This quick and painless test records the electrical signals in the heart. Sticky patches (electrodes) are placed on the chest and sometimes the arms and legs.
What type of murmur is pulmonary stenosis?
The murmur of pulmonic stenosis is very similar to that of aortic stenosis. It is a midsystolic high-pitched crescendo-decrescendo murmur heard best at the pulmonic listening post and radiating slightly toward the neck, however the murmur of pulmonic stenosis does not radiate as widely as that of aortic stenosis.
Is pulmonary stenosis a heart disease?
Pulmonary valve stenosis is a heart valve disorder that involves the pulmonary valve. This is the valve separating the right ventricle (one of the chambers in the heart) and the pulmonary artery. The pulmonary artery carries oxygen-poor blood to the lungs.
Does pulmonary stenosis go away?
In children with mild degrees of pulmonary stenosis, it is common occurrence that the stenosis might improve over time. However, children with even mild pulmonary stenosis require lifelong follow-up as the pulmonary valve may become stiffer and therefore work less sometimes later on in adult life.
Is pulmonary stenosis considered heart disease?
What is the treatment of pulmonary stenosis?
Treatment options for pulmonary stenosis include open-heart surgery or balloon angioplasty. The primary indication for treatment is the degree of narrowing and treatment is timed to prevent damage to the right heart.
Is pulmonic stenosis systolic or diastolic?
Pulmonary stenosis is a systolic murmur best heard at the upper left sternal border and commonly associated with tetralogy of Fallot, carcinoid syndrome, congenital rubella syndrome, and Noonan syndrome. This diastolic murmur best heard at the lower left sternal border.