aEEG in the first 3 days after extremely preterm delivery relates to neurodevelopmental outcomes

Roberta Pineda1,2,3,4, Zachary Vesoulis5, Nathalie El Ters5

  • 1Chan Division of Occupational Science and Occupational Therapy, University of Southern California, Los Angeles, CA, USA. bobbi.pineda@chan.usc.edu.

Insights

Early amplitude-integrated electroencephalography (aEEG) in extremely preterm infants is linked to medical and social factors. Lower aEEG scores correlate with poorer neurodevelopmental outcomes, including executive function, at school age.

Area of Science:

  • Neonatal neurology
  • Developmental neuroscience
  • Clinical neurophysiology

Background:

  • Amplitude-integrated electroencephalography (aEEG) is a valuable tool for monitoring brain activity in neonates.
  • Extremely preterm infants (<28 weeks gestation) are at high risk for neurological complications.
  • Understanding early brain development patterns can inform long-term outcomes.

Purpose of the Study:

  • To investigate the associations between early aEEG patterns (first 72 hours) in extremely preterm infants and various infant, medical, and environmental factors.
  • To examine the relationship between early aEEG and infant feeding and neurobehavioral outcomes at term-equivalent age and school-age.

Main Methods:

  • Sixty-four extremely preterm infants (≤28 weeks gestation) underwent two-channel aEEG monitoring within 24 hours of birth for the first 72 hours.
  • Standardized neurobehavioral assessments (e.g., NICU Network Neurobehavioral Scale) and feeding evaluations were performed at term-equivalent age.
  • Parent-reported outcomes, including executive function (e.g., BRIEF), were collected at 5-7 years of age.

Main Results:

  • Lower aEEG Burdjalov scores were associated with vaginal delivery, cerebral injury, Black race, and unmarried parents.
  • Reduced aEEG scores correlated with lower arousal scores on the NICU Network Neurobehavioral Scale at term-equivalent age.
  • Lower aEEG scores predicted poorer executive function, including global executive function, inhibition, working memory, organization, metacognition, and behavioral regulation at school-age.

Conclusions:

  • Early aEEG monitoring in extremely preterm infants provides insights into medical and sociodemographic factors.
  • aEEG patterns in the first 72 hours are predictive of neurodevelopmental outcomes, particularly executive functions, in later childhood.
  • No significant relationships were found between early aEEG and feeding outcomes or sensory processing measures.
Abstract