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  • Title: Cerebral oxygenation and brain activity after perinatal asphyxia: does hypothermia change their prognostic value?
    Author: Lemmers PM, Zwanenburg RJ, Benders MJ, de Vries LS, Groenendaal F, van Bel F, Toet MC.
    Journal: Pediatr Res; 2013 Aug; 74(2):180-5. PubMed ID: 23728382.
    Abstract:
    BACKGROUND: Hypothermia is an established therapy in term neonates to reduce death and disability after perinatal asphyxia. Near-infrared spectroscopy-monitored regional cerebral oxygen saturation (rScO2) and amplitude-integrated electroencephalogram (aEEG)-monitored background pattern have been shown to be early predictors of long-term neurodevelopmental outcome. The aim of this study was to investigate the prognostic value of rScO2 and aEEG for neurodevelopmental outcome in neonates with hypoxic-ischemic encephalopathy (HIE) treated with hypothermia. METHODS: In neonates with HIE who were subjected to hypothermia, the aEEG background pattern and rScO2 were studied prospectively from admission up to 84 h in relation to early magnetic resonance imaging and neurodevelopmental outcome at 18 mo of age. RESULTS: Of 39 infants, 12 neonates died because of neurological deterioration. One had an adverse outcome and 26 had a favorable outcome. The rScO2 was higher in neonates with adverse outcome, although aEEG scores were lower. Positive predictive values at 12, 24, and 36 h of age for adverse outcome ranged from 50 to 67% for rScO2 and aEEG; negative predictive values ranged from 73 to 96% for rScO2 and 90 to 100% for aEEG. Combining rScO2 and aEEG increased positive predictive values (70-91%) and negative predictive values (90-100%). CONCLUSION: During hypothermia, rScO2 and aEEG measurements are early predictors of long-term outcome after HIE. Combining both parameters further improves early prediction.
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