Transposition of the Great Arteries

Abstract

Transposition of the great arteries (TGA) is a congenital malformation in which the aorta arises from the morphologic right ventricle and the pulmonary artery from the morphologic left ventricle, resulting in two separate and parallel circulations. TGA occurs during embryology by an abnormal division of the truncus arteriosus into the two great vessels. The incidence of TGA is 5% of all congenital heart diseases. The case report follows a fetus upon diagnosis of TGA at 27 weeks gestation through multiple surgeries and full recovery.