<unk>  is a heart<unk>  disorder that involves the<unk><unk> . This<unk>  separates the right ventricle (one of the chambers in the heart) and the<unk>  artery. The<unk>  artery carries oxygen-poor blood to the lungs. Stenosis occurs when the<unk>  cannot open wide enough. As a result, less blood flows to the lungs.
Pulmonary valve stenosis
Pulmonary vein stenosis
Tricuspid stenosis
Bicuspid aortic stenosis
Pulmonic regurgitation
Supravalvular aortic stenosis
Atrioventricular canal defect
Double orifice mitral valve