What causes pulmonary valve stenosis?

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.Click to see full answer. In respect to this, is pulmonary stenosis life threatening?Pulmonary stenosis can be mild, moderate, severe or life-threatening. This condition is also called pulmonic stenosis or pulmonary valve stenosis. Also, the stenosis can occur above the pulmonary valve, in the pulmonary artery itself; this is called supravalvar pulmonic stenosis.Also Know, is pulmonary valve stenosis a heart disease? Pulmonary valve stenosis is a heart valve disorder that involves the pulmonary valve. The pulmonary artery carries oxygen-poor blood to the lungs. Stenosis, or narrowing, occurs when the valve cannot open wide enough. As a result, less blood flows to the lungs. One may also ask, can pulmonary valve stenosis go away? Mild-pulmonic stenosis has a generally favorable prognosis. Many times, the stenosis will improve or go away completely over the first few years of life. For patients who have moderate or worse stenosis, treatment is usually needed eventually, and prognosis will depend on the immediate results of the procedure.How do you fix pulmonary stenosis?Many types of procedures can repair or replace the pulmonary valve. Most severe cases of pulmonic stenosis can be treated with a balloon valvuloplasty during heart catheterization. With this procedure, a doctor threads an unopened balloon through the pulmonary valve and inflates it to open the valve.