PEDIATRICS Vol. 118 No. 6 December 2006, pp. 2552-2554 (doi:10.1542/peds.2006-2519)
EXPERIENCE & REASON |
Artifacts on Electroencephalograms May Influence the Amplitude-Integrated EEG Classification: A Qualitative Analysis in Neonatal Encephalopathy
a Centre of Perinatal Brain Research, Institute of Womens Health, University College London, London, United Kingdom
b Department of Paediatrics, Hammersmith Campus, Imperial College London, London, United Kingdom
ABSTRACT
This is a case report and a descriptive study demonstrating that artifacts are common during long-term recording of amplitude-integrated electroencephalograms and may lead to erroneous classification of the amplitude-integrated electroencephalogram trace. Artifacts occurred in 12% of 200 hours of recording time sampled from a representative sample of 20 infants with neonatal encephalopathy. Artifacts derived from electrical or movement interference occurred with similar frequency; both types of artifacts influenced the voltage and width of the amplitude-integrated electroencephalogram band. This is important knowledge especially if amplitude-integrated electroencephalogram is used as a selection tool for neuroprotection intervention studies.
Key Words: amplitude-integrated EEG neonatal encephalopathy neuroprotection
Abbreviations: EEG, electroencephalogram aEEG, amplitude-integrated electroencephalogram CFM, cerebral function monitor
Accepted Aug 30, 2006.
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