Pulmonary stenosis etiology and anatomy

WikiDoc Microchapters for Pulmonary valve stenosis
Pulmonary valve stenosis Home
Pulmonary valve stenosis epidemiology and demographics
Pulmonary valve stenosis etiology
Pulmonary valve stenosis anatomy
Pulmonary valve stenosis symptoms
Pulmonary valve physical examination
Pulmonary valve stenosis echocardiography
Pulmonary valve stenosis severity assessment
Pulmonary valve stenosis treatment

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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Etiology

• Congenital pulmonic stenosis is most common.

• Rheumatic involvement is rare, is usually part of multivalvular involvement, rarely leads to serious deformity.

• Carcinoid plaques can be present in the carcinoid syndrome. These result in constriction of the pulmonic valve ring, retraction and fusion of the valve cusps.

Anatomy

• Typically the valve is domed shaped with fused commissures.

• If the foramen ovale is patent, then right to left shunting can occur at the atrial level.

• If there is pulmonary atresia with an intact ventricular septum then these patients die soon after birth.