EEG patterns associated with present cortical SSEP after cardiac arrest.

Details

Serval ID
serval:BIB_CBD6F6FC6E31
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
EEG patterns associated with present cortical SSEP after cardiac arrest.
Journal
Acta neurologica Scandinavica
Author(s)
Beuchat I., Novy J., Barbella G., Oddo M., Rossetti A.O.
ISSN
1600-0404 (Electronic)
ISSN-L
0001-6314
Publication state
Published
Issued date
08/2020
Peer-reviewed
Oui
Volume
142
Number
2
Pages
181-185
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
After cardiac arrest (CA), present cortical somatosensory evoked potentials (N20 response of SSEPs) have low predictive value for good outcome and might be redundant with EEG.
To determine whether specific features, or rather global, standardized EEG assessments, are reliably associated with cortical SSEP occurrence after cardiac arrest (CA).
In a prospective CA registry, EEGs recorded within 72 hours were scored according to the ACNS nomenclature, and also categorized into "benign," "malignant," and "highly malignant." Correlations between EEGs and SSEPs (bilaterally absent vs present), and between EEGs/SSEPs and outcome (good: CPC 1-2) were assessed.
Among 709 CA episodes, 532 had present N20 and 366 "benign EEGs." While EEG categories as well as background, epileptiform features, and reactivity differed significantly between patients with and without N20 (each P < .001), only "benign EEG" was almost universally associated with present N20: 99.5% (95%CI: 97.9%-99.9%) PPV. The combination of "benign EEG" and present N20 showed similar PPV for good outcome as "benign" EEG alone: 69.0% (95% CI: 65.2-72.4) vs 68.6% (95% CI: 64.9-72.0).
Global EEG ("benign") assessment, rather than single EEG features, can reliably predict cortical SSEP occurrence. SSEP adjunction does not increase EEG prognostic performance toward good outcome. SSEP could therefore be omitted in patients with "benign EEG."
Keywords
EEG, SSEP, outcome, post-anoxic coma, prognostication
Pubmed
Web of science
Create date
15/06/2020 15:33
Last modification date
28/07/2020 6:21
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