1. Coarctation of the aorta  (Trust Mark: Doctor-Reviewed)
Aortic coarctation is a narrowing of part of the aorta(the major artery leading out of the heart). It is a type of birth defect. • Reviewer: Mark A Fogel, MD, FACC, FAAP, Associate Professor of Pediatrics and Radiology, Director of Cardiac MR, The Children's Hospital of Philadelphia. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

2. Coarctation of the Aorta  (Trust Mark: Doctor-Reviewed)
Coarctation of the aorta(COA) is a congenital heart defect that develops in the fetus. It involves a constricture of the aorta, the main artery that delivers blood from the.left ventricle of the heart to the rest of the body. • Author: L. Lee Culvert, John T. Lohr PhD