PMC6031237_01
A. EEG tracing showing a rhythmic right frontocentral discharge (arrow) at seizure onset (F1) with seizure generalization (G1) for the first time. B. Focal seizure with rhythmic right frontocentral discharge (F2) immediately reappearing before generalizing for the second time (G2). Blue boxes show exact time stamps for single seizure during the four phases.
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This pattern evolved in amplitude and frequency for about 2 min before again generalizing into a tonic-clonic discharge pattern (Fig. 1).
Quantitative EEG showing a focal right hemispheric seizure (F1) that secondarily generalized (G1), reappeared immediately as a right hemispheric focal seizure (F2), and generalized for a second time (G2) before ceasing.
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The seizure then generalized for a second time before its cessation (Fig. 2).