Mortality after neonatal cardiac repair remains significant, and neonates who have undergone operative repair of congenital heart disease may experience sudden and unexpected demise. Most of these deaths occur within the first 72 hours and have been attributed to poor systemic cardiac output. The literature currently does not define an early and reliable predictor of poor post-operative outcome in children with congenital heart disease who have recently undergone surgery.
The investigator wishes to perform a retrospective chart review to independently define the predictive values of both NIRS score and serial serum lactate levels in the setting of early post-operative morbidity.