Double aortic arch is an abnormal formation of the aorta -- the large artery that carries blood from the heart to the rest of the body. The aorta splits into two vessels instead of one soon after it leaves the heart and surround the esophagus (swallowing tube) and trachea (breathing tube). The two branches eventually come back together.
Update Date 3/15/2016
Updated by: Scott I. Aydin, MD, Assistant Professor of Pediatrics, Albert Einstein College of Medicine, Division of Pediatric Cardiology and Critical Care Medicine, The Children'’s Hospital at Montefiore, Bronx, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.