Figure 3.

Overview of the anatomy in patients with transposition of the great arteries (TGA or D-TGA) and congenital corrected TGA (ccTGA or L-TGA). ccTGA and TGA (after atrial switch operation). Both have a morphologically right systemic ventricle in common. This is associated with the development of heart failure in the long term and with increased morbidity/mortality. By means of atrial switch surgery, the venous blood is redirected at the atrial level. This surgical method has been superseded in the past 20 years by arterial switch surgery, which has the advantage of a morphologically left systemic ventricle.

In ccTGA, a combination of atrioventricular and ventriculoarterial discordance is present. The systemic ventricle is hatched. LV, left ventricle; RV, right ventricle