Pulmonary stenosis etiology and anatomy

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Pulmonary valve stenosis

Pulmonary valve stenosis Home

Epidemiology and Demographics

Etiology

Anatomy

Diagnosis

Symptoms

Physical Examination

Echocardiography

Severity Assessment

Treatment

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

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.

References

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