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Value of biochemical markers for outcome in term infants with asphyxia

Pediatric Neurology
Publication Date
DOI: 10.1016/j.pediatrneurol.2004.05.004
  • Chemistry
  • Medicine


The aim of this study was to define the predictive values of serum and cerebrospinal fluid concentrations of interleukin-6 and neuron-specific enolase and urinary uric acid/creatinine ratio for outcome in term infants with perinatal asphyxia. All biochemical markers were measured simultaneously within the 24-72 hours of life in 21 infants. The infants were monitored with a standardized neurologic and developmental evaluation protocol over the 2 years of life. The overall outcome at 2 years of age was categorized as “favorable” or “adverse”. According to Sarnat and Sarnat classification, 12 infants had mild encephalopathy and 9 infants had moderate to severe encephalopathy. Seven of 9 (78%) infants with moderate to severe encephalopathy had adverse outcome. However, all infants with mild encephalopathy had favorable outcome. Interleukin-6 and neuron specific enolase levels in cerebrospinal fluid and serum interleukin-6 levels were significantly correlated with the degree of encephalopathy, as well as the outcome. Interleukin-6 in cerebrospinal fluid (cutoff value, 25.9 pg/mL) had the highest predictive value among the biochemical markers. The predictive factors identified in this study should be examined for their ability in a fresh clinical sample in the neonatal intensive care unit before these markers can be applied to the routine clinical of infantswith perinatal asphyxia.

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