Abstract
Transposition of the great arteries (TGA) is a form of conotruncal abnormalities in which the aorta arises from the morphological right ventricle and pulmonary artery arises from the morphological left ventricle (ventriculoarterial discordance). TGA encompasses two distinct defects, complete TGA and congenitally corrected TGA. Complete TGA has a prevalence of 0.24/1,000 live births [12] and represents ∼% of all congenital heart disease [25]. It is the second most common congenital heart defect recognized in infancy [12]. Congenitally corrected TGA is rarer, recognized in 0.02–0.07 per 1,000 live births [15], or less than 1 % of congenital heart defects [25].
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