Abstract
Summary A review is made of eleven reported cases of double aortic arch in infancy,with descriptions of four other instances occurring in The Children's Memorial Hospital in the past ten years. One of these four patients had no respiratory symptoms, but the other three and the ten previously reported each had the typical syndrome of respiratory stridor since early infancy, made worse by feeding or lying prone, attacks of cyanosis, and susceptibility to pulmonary infections. Many were treated for an enlarged thymus without success. In view of the surgical therapy now possible, emphasis is laid on the anatomyof double aortic arches. In all except one of the thirteen cases in infants, the left (anterior) arch was smaller and lower than the right (posterior) arch. In only one case was an innominate artery described; in all the others each arch gave rise separately to its respective common carotid and subclavian arteries.
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