Document Detail

Spectrogram screening of adult EEGs is sensitive and efficient.
MedLine Citation:
PMID:  24857926     Owner:  NLM     Status:  Publisher    
Quantitatively evaluate whether screening with compressed spectral arrays (CSAs) is a practical and time-effective protocol for assisting expert review of continuous EEG (cEEG) studies in hospitalized adults.METHODS: Three neurophysiologists reviewed the reported findings of the first 30 minutes of 118 cEEGs, then used CSA to guide subsequent review ("CSA-guided review" protocol). Reviewers viewed 120 seconds of raw EEG data surrounding suspicious CSA segments. The same neurophysiologists performed independent page-by-page visual interpretation ("conventional review") of all cEEGs. Independent conventional review by 2 additional, more experienced neurophysiologists served as a gold standard. We compared review times and detection rates for seizures and other pathologic patterns relative to conventional review.RESULTS: A total of 2,092 hours of cEEG data were reviewed. Average times to review 24 hours of cEEG data were 8 (±4) minutes for CSA-guided review vs 38 (±17) minutes for conventional review (p < 0.005). Studies containing seizures required longer review: 10 (±4) minutes for CSA-guided review vs 44 (±20) minutes for conventional review (p < 0.005). CSA-guided review was sensitive for seizures (87.3%), periodic epileptiform discharges (100%), rhythmic delta activity (97.1%), focal slowing (98.7%), generalized slowing (100%), and epileptiform discharges (88.5%).CONCLUSIONS: CSA-guided review reduces cEEG review time by 78% with minimal loss of sensitivity compared with conventional review.CLASSIFICATION OF EVIDENCE: This study provides Class IV evidence that screening of cEEG with CSAs efficiently and accurately identifies seizures and other EEG abnormalities as compared with standard cEEG visual interpretation.
Lidia M V R Moura; Mouhsin M Shafi; Marcus Ng; Sandipan Pati; Sydney S Cash; Andrew J Cole; Daniel Brian Hoch; Eric S Rosenthal; M Brandon Westover
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-5-23
Journal Detail:
Title:  Neurology     Volume:  -     ISSN:  1526-632X     ISO Abbreviation:  Neurology     Publication Date:  2014 May 
Date Detail:
Created Date:  2014-5-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401060     Medline TA:  Neurology     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2014 American Academy of Neurology.
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