Visual and Quantitative Electroencephalographic Analysis in Healthy Term Neonates Within the First Six Hours and the Third Day of Life

What constitutes a “normal” background electroencephalography (EEG) rhythm immediately after birth is not well understood. We performed video-electroencephalography recordings in the first six hours (first measure) and the third day of life (second measure) for evidence of transient changes in brain...

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Bibliographic Details
Published in:Pediatric neurology 2017-12, Vol.77, p.54-60.e1
Main Authors: Castro Conde, José R., González Barrios, Desiré, González Campo, Candelaria, González González, Nieves L., Reyes Millán, Beatriz, Sosa, Alejandro Jiménez
Format: Article
Language:English
Subjects:
Brain - physiology
Brain Mapping
Brain Waves - physiology
Cohort Studies
cohort study
EEG
Electroencephalography
Female
Fourier Analysis
Humans
Infant, Newborn
Male
neonate
power spectrum
Sleep - physiology
Time Factors
Vision, Ocular - physiology
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Summary:What constitutes a “normal” background electroencephalography (EEG) rhythm immediately after birth is not well understood. We performed video-electroencephalography recordings in the first six hours (first measure) and the third day of life (second measure) for evidence of transient changes in brain function. We performed a cohort study of an incidental sample of healthy term neonates in a single-center nursery. Main outcome measures were as follows: (1) EEG visual analysis, which included sleep-wake cycles, proportions of discontinuity and bursts with delta brushes, and number per hour of alpha/theta rolandic activity, encoches frontales, and transients; and (2) the electroencephalographic spectral analysis, which included power spectrum in the following frequency bands: delta, 0.5 to 4 Hz; theta, 4 to 8 Hz; alpha, 8 to 13 Hz; and beta, 13 to 30 Hz. Theta/delta and alpha/delta ratios were also calculated. Twenty-two babies were enrolled. Significant findings (P 
ISSN:0887-8994
1873-5150
DOI:10.1016/j.pediatrneurol.2017.04.024