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Updated: May 4, 2026
Application of an Amplitude-integrated EEG Monitor Cerebral Function Monitor to Neonates
Published on: September 6, 2017
Cerebral maturation on amplitude-integrated electroencephalography and perinatal exposures in preterm infants
Lauren C Reynolds1, Roberta G Pineda, Amit Mathur
1Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA.
Insights
Amplitude-integrated electroencephalography (aEEG) and Burdjalov scores in preterm infants are linked to perinatal factors and predict neurodevelopmental outcomes. Early aEEG monitoring aids in assessing cerebral maturation and potential risks.
Area of Science:
- Neonatal neurology
- Neurophysiology
- Developmental neuroscience
Background:
- Amplitude-integrated electroencephalography (aEEG) is a valuable tool for monitoring cerebral function in neonates.
- Perinatal factors significantly influence brain development and neurodevelopmental outcomes in preterm infants.
- Early identification of neurological abnormalities is crucial for timely intervention.
Purpose of the Study:
- To investigate the associations between perinatal exposures and cerebral maturation assessed by aEEG.
- To determine the relationship between aEEG findings, Burdjalov scores, and neurodevelopmental outcomes in preterm infants.
- To identify early markers of adverse neurodevelopmental outcomes using aEEG and clinical data.
Main Methods:
- Prospective cohort study of 136 infants with estimated gestational age ≤30 weeks.
- Four-hour aEEG recordings were obtained at multiple time points during hospitalization.
- Perinatal factors and neurodevelopmental outcomes at two years were documented and analyzed.
- Associations between perinatal exposures, aEEG cyclicity (Burdjalov scores), and outcomes were examined.
Main Results:
- Immature aEEG cyclicity was associated with higher CRIB scores, vaginal delivery, male gender, and mortality.
- Cerebral injury, sepsis, lower caffeine dose, prolonged mechanical ventilation, and death were linked to lower Burdjalov scores.
- Burdjalov scores at 30 and 34 weeks postmenstrual age predicted motor scores at follow-up.
Conclusions:
- aEEG measures of cyclicity and Burdjalov scores within the first six weeks of life are associated with known predictors of adverse neurodevelopmental outcomes.
- These aEEG-derived metrics, particularly at 30 and 34 weeks postmenstrual age, show promise in predicting neurodevelopmental trajectories.
- Early aEEG monitoring can provide insights into cerebral maturation and inform risk assessment in preterm infants.
Aim:
To determine the associations between perinatal exposures, cerebral maturation on amplitude-integrated encephalography (aEEG) and outcome.
Methods:
During this prospective cohort study, 136 infants ≤30 weeks estimated gestational age received 4 h of aEEG at four time points (between the first 2 weeks of life and term-equivalent age) during hospitalisation. Perinatal factors were documented. Associations between perinatal exposures and Burdjalov-scores were investigated. Neurodevelopmental outcome was assessed at the age of two.
Results:
Immature cyclicity on the initial aEEG recording was associated with higher CRIB score (p = 0.01), vaginal delivery (p = 0.02), male gender (p < 0.01) and death (p = 0.01). Perinatal factors associated with lower Burdjalov-scores included cerebral injury (p < 0.01), sepsis (p < 0.01), lower caffeine dose (p = 0.006), prolonged mechanical ventilation (p = 0.002) and death (p < 0.01). Burdjalov-scores at 30 (β = 2.62, p < 0.01) and 34 weeks postmenstrual age (β = 2.89, p = 0.05) predicted motor scores.
Conclusion:
aEEG measures of cyclicity and Burdjalov-scores in the first 6 weeks of life, with an emphasis on 30 and 34 weeks postmenstrual age, demonstrated associations with perinatal factors known to predict adverse neurodevelopmental outcome.
