II. Definitions

  1. Truncus Arteriosus
    1. Cyanotic Congenital Heart Disease associated with Congestive Heart Failure
    2. Aorta and pulmonary artery arise as a single vessel
    3. Accompanied by a large Ventricular Septal Defect (VSD)

III. Risk Factors

IV. Signs

  1. Cyanosis at birth
    1. Cyanosis may be delayed if pulmonary vascular resistance remains increased
  2. Congestive Heart Failure
    1. Onset by the second week of life (related to increased pulmonary Blood Flow)

V. Associated Conditions

  1. Large Ventricular Septal Defect (VSD)
    1. Uniformly present
  2. Truncal valve stenosis
  3. Truncal valve regurgitation
  4. Right aortic arch
  5. Aortic Coarctation
  6. Interrupted aortic arch
  7. Pulmonary stenosis
  8. Inconsistent Coronary Artery Anatomy

VI. References

  1. Fujii and Lock in Cloherty (1991) Manual Neonatal Care, Little Brown, Boston, p. 262-3

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