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EEG before and after acute IV antiseizure medication trial in a patient with suspected nonconvulsive status epilepticus

EEG before and after acute IV antiseizure medication trial in a patient with suspected nonconvulsive status epilepticus
(A) Generalized spike-and-wave (GSW) complexes (some with polyspike-and-wave) in a patient with penetrating brain injury to the right parietal lobe who presented with pulseless cardiac arrest and myoclonic status epilepticus, treated successfully with IV and oral antiseizure medications and continuous midazolam. This EEG was obtained several days after midazolam was tapered, when the patient was exhibiting new nystagmus and frequent eye blinks.
(B) Resolution of GSW after administration of IV midazolam. The patient's nystagmus and eye blinks also disappeared. Although the EEG did not return to a normal awake background, the disappearance of both GSW and clinical manifestations confirms their ictal nature.
EEG: electroencephalogram; IV: intravenous.
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