Stenosis

Aortic valve disease: causes, diagnosis and treatment

What Are Heart Valve Diseases?

Heart valve diseases are problems affecting one or more of the four valves in the heart. Heart valves open and shut with each heartbeat to keep blood flowing in the right direction. Problems with heart valves can occur if the valves are leaky (a condition called regurgitation), too narrow (stenosis), or don’t have a proper opening (atresia).

The Human Circulatory System

Pulmonary valve stenosis

Stenosis of the pulmonary valve or right ventricular (RV) infundibulum increases the resistance to RV outflow, raises the RV pressure, and limits pulmonary blood flow. Pulmonic stenosis is often congenital and associated with other cardiac lesions.

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