Therapeutic hypothermia (TH) is standard of care in the management of hypoxic-ischemic encephalopathy (HIE). Fluctuations in partial pressure of arterial carbon dioxide (PaCO2) during TH is associated with poor neurodevelopmental outcomes. Frequent arterial blood gas monitoring may not be practical. Study the accuracy of transcutaneous CO2 (TCO2) in newborns undergoing TH
