Study Population:
After approval of the research ethics board, all consecutive patients
who underwent ASO between 2000 and 2019 were reviewed. Exclusion
criteria were: double outlet right ventricle (DORV), congenitally
corrected transposition of the great arteries (CCTGA), specific
pathology forms of transpositions (e.g., isomerism, posterior
transposition), late presenting patients (age more than 3-months) and
patients who died early (in-hospital death). These exclusion criteria
were applied to yield a homogenous group of patients.