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Interrupted aortic arch

The interrupted aortic arch malformation is characterised by complete division of the thoracic aorta into two segments.

Three main types are distinguished depending on the site of the interruption:

  • In type A the interruption is distal to the left subclavian artery.
  • Type B is characterised by an interruption between the left common carotid artery and the left subclavian artery.
  • In type C the interruption is proximal to the left common carotid artery.

    Newborn infants with these defects usually come to attention early due to global heart failure as a concomitant ventricular septal defect is present in many cases. The operation consists of two components: continuity of the aorta has to be created and the ventricular septal defect must be closed.

Interrupted aortic arch
Operation