Focal slowing or attenuation of EEG activity within 72 h of febrile status epilepticus (FSE) in children could be indicative of acute hippocampal injury, according to the latest findings of the FEBSTAT study. Of 199 children assessed within 72 h of FSE presentation, 45.2% exhibited abnormal EEG activity. Focal slowing and attenuation were found to be strongly associated with hippocampal T2 signal abnormalities on MRI.