Congenital heart disease is the most common birth defect worldwide, affecting millions of newborn infants every year. 1 Improved care, especially surgical interventions, has resulted in most children with congenital heart disease in developed countries surviving to adulthood. 2 Success of these improvements exposed a heightened risk of brain injury and developmental disorders and disabilities. 3 Infants with complex congenital heart disease (CCHD), including those with single ventricle physiology, have impaired circulation, reduced blood oxygen carrying capacity to the fetal and neonatal brain, and impaired brain growth in utero compared to infants without CCHD. 4,5 A recent systematic review and meta-analysis on neurodevelopmental outcomes from birth through adolescence in newborn infants with