Transposition complexes

Transposition complexes refer to hearts in which there is a reversal in the relationship between the ventricles and great arteries, i.e. there is ventriculoarterial discordance. Thus, the right ventricle gives rise to the aorta and supports the systemic circulation, whilst the left ventricle becomes the subpulmonary ventricle. There are two types of transposition: complete transposition of the great arteries (TGA) and congenitally corrected TGA. This chapter discusses complete TGA, including interarterial repair (Mustard or Senning operation), arterial switch operation, and Rastelli operation. It also covers congenitally corrected transposition of the great arteries (ccTGA), including atrioventricular (AV) and ventriculoarterial (VA) discordance.