![]() ![]() When it closes, an infant with an IAA will get extremely sick.īabies with IAA usually can seem healthy at birth but become very ill within the first days of life. The ductus arteriosus normally closes on its own a day or two after birth. When a baby is born with IAA, the only way for the lower body to get blood is through a small blood vessel called the ductus arteriosus, and even then, that blood does not contain the oxygen level we need. Norton Children’s has a network of outreach diagnostic and treatment services throughout Kentucky and Southern Indiana.Īn IAA is a life-threatening condition. The board-certified and fellowship-trained specialists at Norton Children’s Heart Institute have the skills and experience to provide a pinpoint diagnosis and develop a customized treatment plan for you and your child - for life. The specialists at Norton Children’s Heart Institute, affiliated with the UofL School of Medicine - the leading provider of pediatric heart care in Louisville and Southern Indiana - can help your child with an interrupted aortic arch. Type C is the least common type, representing about 4% of reported cases. Type C: The interruption happens between the innominate artery and the left carotid artery.Type B is the most common type of IAA, accounting for about 53% of reported cases. ![]() Type B: The interruption happens between the left carotid artery and the left subclavian artery.Up to 30 to 40% of infants with IAA have type A. Type A: The interruption happens just past the left subclavian artery.This means that the heart cannot send blood through the aorta to the lower body. When an aortic arch is interrupted, it means that at some point along the curve, the part going up (ascending aorta) ends and is not attached to the part going down (descending aorta). An interrupted aortic arch (IAA) is an abnormality of the major artery of the body, the aorta. ![]()
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