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Published on: September 6, 2017
Neurodevelopmental forecasting in preterms: aEEG at 32 weeks vs. MRI at term in predicting 2-year outcomes
Gina Ancora1, Anna Tarocco2,3, Miria Natile1
1Neonatal Intensive Care Unit, Infermi Hospital Rimini, Rimini, Italy.
Insights
Amplitude-integrated electroencephalography (aEEG) at 32 weeks offers early prediction of neurodevelopmental outcomes in preterm infants, complementing later brain MRI scans for timely interventions.
Area of Science:
- Neonatal neurology
- Developmental neuroscience
- Medical imaging
Background:
- Very preterm infants face significant risks for neurodevelopmental impairments.
- Early identification of at-risk infants is crucial for timely intervention.
- Amplitude-integrated electroencephalography (aEEG) and magnetic resonance imaging (MRI) are used to assess brain development.
Purpose of the Study:
- To compare the predictive accuracy of aEEG at 32 weeks corrected age with brain MRI at term-equivalent age.
- To evaluate their effectiveness in forecasting neurodevelopmental outcomes in very preterm infants.
Main Methods:
- Prospective cohort study of 71 infants born before 30 weeks' gestation.
- aEEG performed at 32 weeks corrected age; MRI at term-equivalent age.
- Neurodevelopmental outcomes assessed using Bayley-III at 12 and 24 months.
Main Results:
- Both aEEG and MRI scores significantly correlated with Bayley-III outcomes.
- At 12 months, AUCs were 0.93 for aEEG and 0.96 for MRI.
- At 24 months, MRI remained superior (AUC 0.92 vs. 0.78 for aEEG); combined model showed highest accuracy.
Conclusions:
- aEEG at 32 weeks is a valuable early predictor of neurodevelopmental outcomes.
- aEEG provides actionable information earlier than MRI, facilitating timely interventions.
- Early aEEG assessment supports optimal brain development strategies for preterm infants.
Objective:
To evaluate the predictive accuracy of amplitude-integrated EEG (aEEG) at 32 weeks corrected age versus brain MRI at term-equivalent age in forecasting neurodevelopmental outcomes in very preterm infants.
Study Design:
In this prospective cohort study, 71 infants born before 30 weeks' gestation underwent aEEG at 32 weeks and MRI at term-equivalent age. Neurodevelopmental outcomes were assessed using the Bayley-III at 12 and 24 months, and performance compared through LASSO regression models and ROC analysis.
Results:
Burdjalov aEEG and MRI scores were both significantly associated with Bayley-III outcomes. At 12 months, AUCs were 0.93 for aEEG and 0.96 for MRI. At 24 months, AUCs declined but MRI remained superior (0.92 vs. 0.78). The combined model showed the highest accuracy.
Conclusion:
aEEG at 32 weeks provides a valuable early indicator of neurodevelopmental outcomes, delivering clinically actionable information weeks before MRI and enabling timely interventions to support brain development in preterm infants.
