Intermediate
Technical
In the Industry Vocabulary Test
Pulmonary Valve Stenosis
Narrowing of the pulmonary valve that obstructs blood flow from the right ventricle to the pulmonary arteries.
Full Definition
Pulmonary valve stenosis is a congenital heart defect characterized by narrowing or fusion of the pulmonary valve leaflets, resulting in obstruction of blood flow from the right ventricle to the pulmonary circulation. The condition can range from mild to severe and may require balloon valvuloplasty or surgical intervention. In severe cases, it can lead to right heart failure and cyanosis. The degree of stenosis is typically classified by the pressure gradient across the valve.
Usage
Usage note: Often abbreviated as PS in clinical notes; distinguish from peripheral pulmonic stenosis.
In Context
- "The echocardiogram revealed moderate pulmonary valve stenosis with a peak gradient of 45 mmHg." — Echo report
- "Percutaneous balloon dilation is the treatment of choice for isolated pulmonary valve stenosis." — Treatment plan
Also known as
PS
pulmonic stenosis
Contrasted with
pulmonary regurgitation
Don't confuse with
aortic stenosis
subpulmonary stenosis