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Coarctation of the aorta, or aortic narrowing (abbreviated as CoA), is a congenital condition whereby the aorta narrows in the area where the ductus arteriosus (ligamentum arteriosum after regression) inserts.: Coarctation (narrowing) of the aorta. 1:Inferior vena cava, 2:Right pulmonary veins, 3: Right pulmonary artery, 4:Superior vena cava, 5:Left pulmonary artery, 6:Left pulmonary veins, 7:Right ventricle, 8:Left ventricle, 9:Pulmonary artery, 10:Aorta.
Coarctation of the aorta is a type of congenital heart disease. There is a narrowing in part of the aorta, the main artery that leaves the left side of the heart. The degree of narrowing can vary from person to person.oarctation of the aorta is a type of congenital heart disease. (A congenital condition is a condition that you are born with.) There are a number of different types of congenital heart disease. Coarctation of the aorta is just one type.