Autoimmune glial fibrillary acidic protein (GFAP) astrocytopathy
Jun. 26, 2023
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The EEG hallmark of acute encephalopathy is slowing of the background frequencies. The severity of the slowing correlates with the degree of impairment of attention. This EEG from an unresponsive (comatose) patient shows predominantly delta activity. (Contributed by Dr. Jeffrey Nicholl and Dr. David Gloss.)