Abstract
Therapeutic hypothermia (TH) is the only currently approved treatment for neonatal hypoxic-ischemic encephalopathy (HIE) and must be started within 6 hours to optimize effectiveness. This narrow therapeutic window often requires initiation of TH before or during transport. The goal of this study was to assess the effects of servo-controlled TH versus passive hypothermia during transport on short-term outcomes in newborns with HIE. This was a single-center retrospective case-control study of neonates with HIE treated with active or passive TH during transport. Primary outcomes included brain injury on magnetic resonance imaging (MRI) and presence of seizures. Seventy-six neonates were included-13 active and 63 passive. The active TH group was more likely to arrive within goal temperature. No difference was noted between groups in seizures or TH complications. Active TH was associated with increased injury on MRI. Active TH resulted in tighter temperature control, but no improvement in short-term outcomes in our cohort. The MRI findings may be due to differences in overall disease severity, which could not be adjusted for, given the modest sample size.
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