ABSTRACT
Coarctation of the aorta (CoA) refers to an area of narrowing of the thoracic aorta in the region of insertion of the arterial duct, most commonly between the left subclavian artery and the ductus arteriosus (DA) (isthmus). Commonly, CoA encompasses a spectrum of lesions, ranging from segmental narrowing (coarctation of the isthmic region) to severe tubular hypoplasia of the whole transverse arch [1]. CoA can be classified as pre-ductal, juxta-ductal, and post-ductal coarctation depending upon the coarctation’s anatomic relationship to the DA [1]. In prenatal and neonatal life, the most frequent types are pre-ductal and juxta-ductal coarctation. Tubular hypoplasia of the aortic arch may be limited to the isthmic region or may also involve the whole aortic arch.
