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Neonatal electroencephalography during the first twenty-four hours of life in full-term newborn infants
Insights
Electroencephalography (EEG) on the first day of life can predict infant outcomes. Abnormal EEGs in newborns admitted to intensive care are linked to poor prognoses, aiding early cerebral injury assessment.
Area of Science:
- Neonatal neurology
- Clinical neurophysiology
Background:
- Neonatal intensive care units (NICUs) manage high-risk infants.
- Early assessment of cerebral injury is crucial for predicting outcomes.
Purpose of the Study:
- To evaluate the utility of early electroencephalography (EEG) in predicting outcomes for newborns in intensive care.
- To correlate EEG findings within the first 24 hours of life with patient survival and neurological sequelae.
Main Methods:
- Analysis of 84 electroencephalograms (EEGs) from 80 full-term newborns in intensive care.
- Correlation of EEG patterns (electrical discharges, isoelectric activity, discontinuous activity) with patient outcomes (survival, death, sequelae).
- Assessment of sleep state organization in 56 neonates.
Main Results:
- Extremely abnormal EEGs (27 cases) were associated with unfavorable outcomes.
- Normal or minimally abnormal EEGs (31 cases) correlated with normal outcomes or death without cerebral injury.
- Sleep state organization was present in 11 infants with favorable outcomes.
- 22 EEGs were difficult to classify, often recorded before 10 hours of life.
Conclusions:
- Early EEG recordings in the first 24 hours of life are valuable for assessing early cerebral injury in critically ill neonates.
- Specific EEG abnormalities can predict poor outcomes, including mortality and major sequelae.
- EEG findings support clinical assessment and guide management decisions for high-risk newborns.
Abstract:
Analysis of 84 EEGs recorded during the first 24 hours of life in 80 full-term newborns admitted in intensive care unit for different reasons. - 35 died, 45 survived (normal outcome: 30, minor sequelae: 6, major sequelae: 9). Extremely abnormal EEGs (27 cases) demonstrated singly or in combination: electrical discharges - isoelectric activity (after 10 hours of life) - Permanent discontinuous activity with longest interval greater than 40 seconds, shortest interburst interval greater than 3 seconds, longest burst shorter than 6 seconds. These abnormalities were observed in babies with unfavourable outcome. Normal or minimally abnormal EEGs (31 cases) were observed in babies with normal outcome (21 cases), minor sequelae (3) or in babies died without cerebral injury at autopsy. Twenty-two EEGs could not be classified easily after a single recording, most of then obtained before the 10th hour of life. Sleep state organization was assessed in 56 neonates; sleep state organization was present in 11 infants (normal outcome or minor sequelae). The EEG of the first day of life can be a useful tool in assessing the degree of early cerebral injury in infants requiring intensive care.