期刊
RESUSCITATION
卷 106, 期 -, 页码 89-95出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.resuscitation.2016.06.032
关键词
Post-anoxic coma; EEG; Cognition; Functional outcome; Prediction
资金
- Swiss National Science Foundation [CR3213_143780]
- EUREKA-Eurostars [E! 9361]
Aim: To date, no clinical test is able to predict cognitive and functional outcome of cardiac arrest survivors. Improvement of auditory discrimination in acute coma indicates survival with high specificity. Whether the degree of this improvement is indicative of recovery remains unknown. Here we investigated if progression of auditory discrimination can predict cognitive and functional outcome. Methods: We prospectively recorded electroencephalography responses to auditory stimuli of postanoxic comatose patients on the first and second day after admission. For each recording, auditory discrimination was quantified and its evolution over the two recordings was used to classify survivors as predicted when it increased vs. other if not. Cognitive functions were tested on awakening and functional outcome was assessed at 3 months using the Cerebral Performance Categories (CPC) scale. Results: Thirty-two patients were included, 14 predicted survivors and 18 other survivors. Predicted survivors were more likely to recover basic cognitive functions shortly after awakening (ability to follow a standardized neuropsychological battery: 86% vs. 44%; p = 0.03 (Fisher)) and to show a very good functional outcome at 3 months (CPC 1: 86% vs. 33%; p = 0.004 (Fisher)). Moreover, progression of auditory discrimination during coma was strongly correlated with cognitive performance on awakening (phonemic verbal fluency: r(s) = 0.48; p = 0.009 (Spearman)). Conclusions: Progression of auditory discrimination during coma provides early indication of future recovery of cognitive functions. The degree of improvement is informative of the degree of functional impairment. If confirmed in a larger cohort, this test would be the first to predict detailed outcome at the single-patient level. (C) 2016 Elsevier Ireland Ltd. All rights reserved.
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