PMC5754005_01
Interictal EEG 3 days after presentation. Bifrontal maximal generalized slowing of the background activity with generalized, bifrontal maximum spike and wave discharges.
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F1
Three days after presentation, a subsequent EEG showed continuous theta slowing with frequent generalized spike and slow wave discharges (Figure 1).
Ictal EEG. High amplitude generalized onset with evolving 1-2 Hz generalized spike and wave discharges correlated with activity arrest and eye fluttering.
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F2
Ictal EEG showed 1-2 Hz generalized epileptiform discharges (Figure 2).
EEG 5 days after IV steroids. The EEG improved greatly, essentially normalizing with very infrequent generalized discharges (not shown here).
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F3
In addition, improvement in the EEG was noted with near normalization of the background and only two brief runs of generalized epileptiform discharges during a 24 hour EEG (Figure 3).