Persistent Truncus Arteriosus - Anatomical Changes

Anatomical Changes

Anatomical changes associated with this disorder includes:

  • single artery arising from the two ventricles which gives rise to both the aortic and pulmonary vessels
  • abnormal truncal valve
  • right sided aortic arch in about 30% of cases (not shown)
  • large ventricular septal defect
  • pulmonary hypertension
  • complete mixing occurring at level of the great vessel
  • right-to-left shunting of blood

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