Neurodevelopmental disorder risk in babies with history of hyperbilirubinemia
AbstractBackground Neurodevelopmental disorder (ND) is defined as
failure to attain normal neurological function. Indirect bilirubin
has essential role because its neurotoxic properties. Neonates with
hyperbilirubinemia carry the risk to develop ND.
Objective To determine the association between neonatal indirect
hyperbilirubinemia and the risk of ND.
Methods Neonates with indirect serum bilirubin (SIB) level >10
mg/dL, admitted in the period of October 2004-August 2005, were
included in this study. They were followed-up and screened using
Bayley Infant Neurodevelopmental Screener (BINS) at three, six
and nine months. Mann-Whitney test was used to test the
Results Forty-eight neonates were included in the study. Mean
SIB level of subjects with ND risk was 20.5 mg/dL (SD=6.06;
p<0.001). Mean SIB level of subjects who developed ND at three,
six and nine months was 31.6 mg/dL (SD=4.02), 18.4 mg/dL
(SD=2.92) and 18.4 mg/dL (SD=5.41), respectively. There was
statistically significant correlation between SIB level and ND
risk (R=+0.64; P<0.001). There was also statistically significant
correlation between SIB level and the onset of ND (R=-0.63;
Conclusion There is a correlation between neonatal SIB level
and the risk of ND in babies.
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