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This monograph advances the thesis that electroencephalography can safely and accurately indicate the degree of cerebral damage sustained after cardiac arrest. The author provides an extensive review of literature relevant to the electroencephalogram in acute cerebral anoxia and presents data on 115 postcardiorespiratory arrest patients (mostly adult) studied at the London Hospital over a five-year period. As in previously published series, patients either died or recovered; hence, the EEG was used to detect only death or survival. To achieve accuracy of prediction, the EEG was evaluated by means of a linear discriminant score based on 36 variables or an adaptive discriminant score using 13. Limitations of the study discussed included, first, difficulties involved in obtaining interpretable records in an intensive care setting, rather than an EEG laboratory, and, second, predictions erred on the side of overoptimism, despite elaborate data processing of EEGs.
Extensive use of electroencephalography to evaluate comatose
Caronna J. The EEG in Acute Cerebral Anoxia. Arch Neurol. 1975;32(2):140. doi:10.1001/archneur.1975.00490440090020