Artifacts on electroencephalograms may influence the amplitude-integrated EEG classification: a qualitative analysis in neonatal encephalopathy.
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.
Hagmann
Cornelia Franziska
CF
Centre of Perinatal Brain Research, Institute of Women's Health, University College London, London, United Kingdom.
Robertson
Nicola Jayne
NJ
Azzopardi
Denis
D
D016477:Artifacts; D001927:Brain Diseases / Q000175:diagnosis* / Q000503:physiopathology; D004569:Electroencephalography / Q000145:classification; D006801:Humans; D007231:Infant, Newborn