Document Detail


Cellular mechanisms underlying EEG waveforms during coma.
MedLine Citation:
PMID:  21967355     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
This paper describes the various electroencephalographic (EEG) patterns expressed by the comatose brain, starting with the sleep-like oscillations associated with light coma. Deeper coma generally displays a burst-suppression pattern characterized by alternating episodes of isoelectric (flat) EEG and bursting slow waves. The latter are the result of cortical hyperexcitability, as demonstrated by intracellular recordings in anesthetized animals. Further deepening of the coma yields to continuous isoelectric EEG and eventually results in a newly discovered type of spiky waves that have been termed ν-complexes. They originate in the hippocampus as a result of intrinsically generated oscillations (ripples) in the delta range.
Authors:
Florin Amzica; Daniel Kroeger
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Epilepsia     Volume:  52 Suppl 8     ISSN:  1528-1167     ISO Abbreviation:  Epilepsia     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-04     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2983306R     Medline TA:  Epilepsia     Country:  United States    
Other Details:
Languages:  eng     Pagination:  25-7     Citation Subset:  IM    
Copyright Information:
Wiley Periodicals, Inc. © 2011 International League Against Epilepsy.
Affiliation:
Université de Montreal, Montreal, Quebec, Canada.
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