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Updated: Aug 19, 2026

Preterm EEG: A Multimodal Neurophysiological Protocol
Published on: February 18, 2012
Early seizures indicate quality of perinatal care
Insights
Perinatal asphyxia in newborns can lead to seizures, linked to factors like maternal age and labor duration. Poor intrauterine growth predicts adverse outcomes in infants experiencing seizures after birth.
Area of Science:
- Neonatal neurology
- Perinatal medicine
- Obstetrics
Background:
- Perinatal asphyxia is a significant cause of neonatal seizures.
- Identifying risk factors for neonatal seizures and predicting outcomes is crucial for clinical management.
Purpose of the Study:
- To analyze antepartum, intrapartum, and postpartum variables associated with neonatal seizures after perinatal asphyxia.
- To determine the relationship between these variables and subsequent morbidity and mortality in affected infants.
Main Methods:
- Retrospective controlled study of 34 term infants with perinatal asphyxia and neonatal seizures.
- Analysis of maternal, labor, and delivery variables.
- Evaluation of outcomes including morbidity and mortality.
Main Results:
- Maternal age >35, prolonged labor, meconium staining, abnormal fetal heart rate, and operative delivery were associated with seizures.
- Low Apgar scores and prolonged positive pressure ventilation correlated with poor outcomes.
- Intrauterine growth restriction strongly predicted death or handicap.
Conclusions:
- Neonatal seizures following perinatal asphyxia are linked to specific maternal and intrapartum factors.
- Intrauterine growth is a critical predictor of outcomes in asphyxiated infants.
- Seizure incidence may serve as an indicator of perinatal care quality.
Abstract:
An analysis of antepartum, intrapartum, and postpartum variables was performed in a retrospective controlled study of 34 normally formed term infants who had perinatal asphyxia and subsequently displayed generalised seizures within 48 hours of birth. The aim was to identify any association, firstly between these variables and seizures, and secondly between these variables and subsequent morbidity and mortality among the seizure group. Maternal age greater than 35 years, duration of labour, meconium stained liquor, abnormal intrapartum fetal heart rate trace, and operative delivery were associated with seizures. A low Apgar score at five minutes, and intermittent positive pressure ventilation at birth of longer than 10 minutes were associated with subsequent morbidity and mortality. A striking relation between poor intrauterine growth and either death or handicap in the asphyxia group emphasised the value of growth measurements as a predictor of outcome. The overall incidence of seizures was 1.6 per 1000 term deliveries. There was a significant correlation between the seizure incidence and the intrapartum mortality rate. The incidence of seizures secondary to asphyxia in term infants, occurring less than 48 hours after delivery, may be a valuable index of the quality of perinatal care.
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