Which statement best describes the purpose of therapeutic hypothermia in infants with Hypoxic-Ischemic Encephalopathy (HIE)?

• A. It reduces brain injury and improves neurodevelopment
• B. It prevents all seizures
• C. It replaces the need for ventilatory support
• D. It cures HIE

Answer: (A)

Therapeutic hypothermia is used to limit secondary brain injury after a hypoxic-ischemic event in newborns. Cooling the infant to around 33.5°C for about 72 hours slows brain metabolism and dampens harmful cascades that follow the initial injury—glutamate excitotoxicity, inflammation, free radical formation, and programmed cell death—helping to preserve neurons and reduce the extent of injury. The goal is to improve neurodevelopmental outcomes, not to guarantee perfect recovery, and it is not a cure for HIE. It does not prevent all seizures, does not replace the need for ventilatory support when it’s required, and cannot reverse established injury. Early initiation within the first six hours and careful monitoring are essential parts of this approach.