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    EEG in the healthy term newborn within 12 hours of birth.

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    Authors
    Korotchikova, I
    Connolly, S
    Ryan, C A
    Murray, D M
    Temko, A
    Greene, B R
    Boylan, G B
    Affiliation
    Department of Paediatrics and Child Health, University College Cork, c/o Clinical Investigation Unit, Cork University Hospital, Wilton, Cork, Ireland. I.Korotchikova@ucc.ie
    Issue Date
    2009-06
    MeSH
    Brain
    Delta Rhythm
    Electroencephalography
    Female
    Humans
    Hypoxia-Ischemia, Brain
    Infant, Newborn
    Male
    Prospective Studies
    Reference Values
    Sleep
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    Citation
    EEG in the healthy term newborn within 12 hours of birth. 2009, 120 (6):1046-53 Clin Neurophysiol
    Journal
    Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
    URI
    http://hdl.handle.net/10147/201333
    DOI
    10.1016/j.clinph.2009.03.015
    PubMed ID
    19427811
    Abstract
    To characterise and quantify the EEG during sleep in healthy newborns in the early newborn period.
    Continuous multi-channel video-EEG data was recorded for up to 2 hours in normal newborns within 12 hours of birth. The total amount of active (AS) and quiet sleep (QS) was calculated in the first hour of recording. The EEG signal was quantitatively analysed for symmetry and synchrony. Spectral edge frequency (SEF), spectral entropy (H) and relative delta power (delta(R)) were calculated for a ten-minute segment of AS and QS in each recording. Paired t-test and Wilcoxon rank sum test were used for data analysis.
    Thirty normal newborn babies were studied, 10 within 6 hours of birth and 20 between 6 and 12 hours. All babies showed continuous symmetrical and synchronous EEG activity and well-developed sleep-wake cycling (SWC) with the median percentage of AS--48.5% and QS--36.6%. Quantitative EEG analysis of sleep epochs showed that SEF and H were significantly higher (p<0.0001) and delta(R) was significantly lower (p<0.0001) in AS than in QS.
    The normal newborn EEG shows symmetrical and synchronous continuous activity and well-developed SWC as early as within the first 6 hours of birth. Quantitative analysis of the EEG in the early postnatal period reveals differences in SEF, H and delta(R) for AS and QS periods.
    These findings may have implications for quantitative analysis of the newborn EEG, including the EEG of babies with hypoxic ischaemic encephalopathy.
    Item Type
    Article
    Language
    en
    ISSN
    1872-8952
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.clinph.2009.03.015
    Scopus Count
    Collections
    Cork University Hospital

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