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Ann Child Neurol > Volume 22(3); 2014 > Article
Journal of the Korean Child Neurology Society 2014;22(3):129-136.
DOI: https://doi.org/10.26815/jkcns.2014.22.3.129    Published online September 30, 2014.
Evaluation of Etiology and Prognostic Factors of the Developmental Outcome in Neonatal Seizures.
Jong Sik Jung, Jihoon Lee, Ga Won Jeon, Jong Beom Sin, Bolyun Lee
Department of Pediatrics, Pusan Paik Hospital, Inje University College of Medicine, Busan, Korea. bototii@hanmail.net
The purpose of this study was to investigate the clinical features of neonatal seizures and to identify prognostic factors of neurodevelopmental outcome in term infants who experienced clinical seizures. METHODS: A retrospective analysis was performed on 153full term and preterm infants with seizures from January 2008 to December 2013. Binary logistic regression analysis was applied to assess risk factors associated with neurological adverse outcomes using variables that were found to be significant on univariate analysis. RESULTS: During the study period, 102 (66.7%) term and 51 (33.3%) preterminfants were enrolled. The main cause of neonatal seizures was hypoxic ischemic encephalopathy (24.5%) in term infants and intracranial hemorrhage (74.5%) in preterm infants. The most common type of seizure was focal clonic seizure. Generalized tonic seizure was more commonly observed in preterm than in term infants. 39 out of 56 term infants with at least 12 months of neurologic follow-up showed normal outcomes while only one preterm infant showed normal development.Prognostic factors related to adverse neurodevelopmental outcomes in term infants were perinatal history of fetal distress, etiology of hypoxic ischemic encephalopathy, severity of EEG(Electroencephalogram) abnormality, evidence of hypoxic ischemic encephalopathy on brain magnetic resonance imaging, and the need for multiple antiepileptic drugs for seizure control. CONCLUSION: Preterm infants showed poorer neurodevelopmental outcomes compared to term infants. The etiology of seizures, treatment response, neuroimaging and electroencephalographic findings were important in predicting the developmental outcome in term infants with seizures.
Key Words: Newborn, Seizures, Prognosis, Term, Preterm


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