Abstract

Interrupted aortic arch (IAA) is a rare but lethal condition usually causing death early in life if untreated. The interruption may be between the innominate and left carotid arteries (Type C), between the left carotid and subclavian arteries (Type B) or distal to the left subclavian artery (Type A) (Celoria and Patton 1959) (Fig. 10.1). The following abbreviations will be used on the illustrations throughout this chapter: AAo, ascending aorta; IA, innominate artery; RSA, right subclavian artery; RCA, right carotid artery; LCA, left carotid artery; LSA, left subclavian artery; PDA, persistent ductus arteriosus; DAo, descending aorta; MPA, main pulmonary artery. Type B is the commonest. Usually these patients have a ventricular septal defect (VSD) and persistent ductus arteriosus (PDA). There may be other associated lesions such as transposition of the great arteries, truncus arteriosus, double outlet right ventricle, double inlet ventricle and total anomalous pulmonary venous drainage.

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