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Objective To review developmental outcomes of neonates with mild hypoxic-ischemic encephalopathy (HIE) treated with therapeutic hypothermia (TH).

Study Design Neonates ≥35 weeks' gestation with mild HIE/TH (TH group, n = 30) were matched with healthy term-born infants (control group, n = 30) and reviewed for the presence and severity of magnetic resonance imaging (MRI)-detected neurological injury. Neurodevelopmental outcomes were assessed using the Bayley Scales of Infant Development (BSID).

Results MRI injury was present in 13/30 (43.3%) neonates (11 mild, 1 moderate, and 1 severe injuries) in the TH group. The mean (standard deviation [SD]) corrected age at BSID III was 29.3 (3.9) months in the controls compared with 14.7 (3.9) months in the TH group (p < 0.01). The mean (SD) cognitive, language, and motor composite scores in neonates in the TH group (n = 16, 53.3 …