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Pediatr Neurol. 2005 Apr;32(4):241-7.

Postneonatal epilepsy following amplitude-integrated EEG-detected neonatal seizures.

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Department of Neonatology, University Medical Center Utrecht/Wilhelmina Children's Hospital, Utrecht, The Netherlands.


To assess the incidence of postneonatal epilepsy in term infants treated with antiepileptic drugs for neonatal seizure discharges that were detected with amplitude-integrated electroencephalography (aEEG), 206 term infants were monitored using this modality. They received antiepileptic drugs for clinical as well as subclinical neonatal seizures. Follow-up data were analyzed for the development of postneonatal epilepsy and for their neurodevelopmental outcome, assessed at 3, 9, 18 months, and 3 and 5 years of age. A total of 169 (82%) neonates received two or more antiepileptic drugs. Overall mortality was 39% (n = 80). Forty-one of the 126 survivors (33%) were abnormal at follow-up, and 12 of them developed postneonatal epilepsy (9.4%). Eighty-four children survived after hypoxic-ischemic encephalopathy grade II (n = 92), and 6 (7%) developed postneonatal epilepsy. In this subgroup, no postneonatal epilepsy was observed if seizures were controlled within 48 hours after birth and when not more than two antiepileptic drugs were required. Twenty-four children survived after an intracranial hemorrhage (n = 28), and only 1 (4%) developed postneonatal epilepsy. Eleven children survived after perinatal arterial stroke (n = 13), and 2 (18%) developed postneonatal epilepsy. In conclusion, the incidence of postneonatal epilepsy after treatment of clinical and subclinical neonatal seizures detected with continuous amplitude-integrated electroencephalography was 9.4%; This figure is lower than previously reported in children who only received treatment for clinical seizures.

[Indexed for MEDLINE]

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