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Abstract
Neonatal hypoxic encephalopathy is one of the major causes of permanent neurological sequel. This study was conducted to investigate serum total, free and acylcarnitine levels in asphyxiated newborns with or without encephalopathy. Serum total, free and acylcarnitine levels were investigated in 21 newborns with and seven asphyxiated newborns without signs of encephalopathy. The newborns with encephalopathy were further divided into grade 1, 2 and 3 encephalopathy groups. Serum total and acylcarnitine concentrations of the whole encephalopathy group were significantly lower than the non-encephalopathy group ( p =0.042 for both). Serum total and acylcarnitine concentrations of grade 3 encephalopathy group were significantly lower than the non-encephalopathy group ( p =0.014 and p =0.040, respectively). No significant differences were noticed for free carnitine levels. Total carnitine levels were positively correlated with birth weight and 10th minute apgar score, whereas acylcarnitine levels were found to correlate with cord blood pH and free carnitine levels with birth weight. Cord blood pH, and total carnitine levels were found to be the most significant determinants of the neurological outcome at one year of age. It was emphasized that carnitine deficiency could occur in severely affected asphyxiated newborns and it is related to the outcome at one year of age.