Interrupted aortic arch type B in trisomy 21: repair with carotid artery interposition

A 21-year-old man with Trisomy 21 was diagnosed with interrupted aortic arch type B and perimembranous ventricular septal defect in the newborn period. He underwent carotid artery interposition and pulmonary artery banding with subsequent debanding and closure of the ventricular septal defect. Cardiac catheterization 20 years later demonstrated good "carotid arch" growth with no residual arch obstruction. Carotid artery interposition provided good curative repair for arch obstruction at late follow-up in this patient.