Related Experiment Videos
Prognostic value of neonatal discontinuous EEG
Caroline C Menache1, Blaise F D Bourgeois, Joseph J Volpe
1Department of Neurology; Children's Hospital; Harvard Medical School, Boston, Massachusetts 02115, USA.
Pediatric Neurology
|September 6, 2002
Summary
A prolonged predominant interburst interval duration on neonatal electroencephalogram (EEG) predicts poor neurologic outcomes. An interburst interval exceeding 30 seconds indicates a high probability of severe disabilities or death in newborns.
Area of Science:
- Neonatal neurology
- Clinical neurophysiology
Background:
- The burst suppression pattern on neonatal electroencephalograms (EEGs) is linked to poor outcomes.
- Discontinuous EEGs are common in newborns, but only a small fraction exhibit burst suppression.
- Predictive markers for outcomes within excessively discontinuous EEGs are needed.
Purpose of the Study:
- To identify easily measurable EEG parameters predictive of neurologic outcome in term infants with excessively discontinuous EEGs.
- To determine if specific EEG quantifications correlate with subsequent epilepsy.
Main Methods:
- Retrospective review of EEGs and medical records from 43 term infants with excessively discontinuous EEGs.
- Quantification of 10 EEG parameters, including predominant interburst interval duration.
- Univariate and multivariate analyses to assess the relationship between EEG variables and neurologic outcome/epilepsy.
Main Results:
- A predominant interburst interval duration exceeding 30 seconds significantly correlated with unfavorable neurologic outcome (P = 0.040).
- This EEG parameter also significantly correlated with the development of subsequent epilepsy (P = 0.033).
- Infants with predominant interburst intervals >30 seconds had a 100% probability of severe neurologic disabilities or death and an 86% chance of developing epilepsy.
Conclusions:
- A predominant interburst interval duration of more than 30 seconds is a significant predictor of poor neurologic prognosis in term infants.
- This easily quantifiable EEG parameter aids in early estimation of neurologic outcome and epilepsy risk.
- Findings highlight the prognostic value of specific quantitative EEG measures in neonatal care.