Article (Scientific journals)
Automated analysis of background EEG and reactivity during therapeutic hypothermia in comatose patients after cardiac arrest
Noirhomme, Quentin; Lehembre, Rémy; Lugo, Zulay et al.
2014In Clinical EEG and Neuroscience
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Keywords :
electroencephalography; background EEG; reactivity; therapeutic hypothermia; automated analysis
Abstract :
[en] Visual analysis of electroencephalography (EEG) background and reactivity during therapeutic hypothermia provides important outcome information, but is time-consuming and not always consistent between reviewers. Automated EEG analysis may help quantify the brain damage. Forty-six comatose patients in therapeutic hypothermia, after cardiac arrest, were included in the study. EEG background was quantified with burst-suppression ratio (BSR) and approximate entropy, both used to monitor anesthesia. Reactivity was detected through change in the power spectrum of signal before and after stimulation. Automatic results obtained almost perfect agreement (discontinuity) to substantial agreement (background reactivity) with a visual score from EEG-certified neurologists. Burst-suppression ratio was more suited to distinguish continuous EEG background from burst-suppression than approximate entropy in this specific population. Automatic EEG background and reactivity measures were significantly related to good and poor outcome. We conclude that quantitative EEG measurements can provide promising information regarding current state of the patient and clinical outcome, but further work is needed before routine application in a clinical setting.
Research Center/Unit :
GIGA CRC (Cyclotron Research Center) In vivo Imaging-Aging & Memory - ULiège
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Noirhomme, Quentin ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Lehembre, Rémy
Lugo, Zulay
Lesenfants, Damien ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Luxen, André ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie organique de synthèse
Laureys, Steven  ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Oddo, Mauro
Rossetti, Andrea
Language :
English
Title :
Automated analysis of background EEG and reactivity during therapeutic hypothermia in comatose patients after cardiac arrest
Publication date :
January 2014
Journal title :
Clinical EEG and Neuroscience
ISSN :
1550-0594
eISSN :
2169-5202
Publisher :
EEG and Clinical Neuroscience Society, United States - California
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 29 January 2014

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