Key result
Episodic low amplitude events (ELAEs) on electroencephalograms in patients with coma are a manifestation of seriously abnormal activity and correlate with a 45% mortality rate.
Observational (n=22)
Episodic low amplitude events on EEG in comatose patients are a manifestation of seriously abnormal activity and are associated with high mortality.
.In a series of 27 electroencephalograms from 22 patients, well-defined brief attenuations occurred interspersed among the background activity. These “episodic low amplitude events” (ELAEs) typically lasted 0.5–4 seconds. They were hemispheric or bisynchronous and occurred in patients with coma of various etiologies, including status epilepticus. The episodes of attenuation were brief and no bursts of activity were present, distinguishing this finding from burst-suppression. In the patients with coma other than status epilepticus, prognosis was poor. In the setting of status epilepticus, the prognosis depended on the etiology of status. ELAEs are a manifestation of seriously abnormal electroencephalographic activity and correlate with α 45% mortality.
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Rae‐Grant et al. (1993) conducted an observational in Coma of various etiologies, including status epilepticus (n=22). Episodic low amplitude events (ELAEs) was evaluated on Mortality. Episodic low amplitude events (ELAEs) on electroencephalograms in patients with coma are a manifestation of seriously abnormal activity and correlate with a 45% mortality rate.
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