2024 年 16 巻 1 号 p. 54-59
We herein report a case of epilepsy in an adolescent patient with epilepsy whose chief complaints at presentation were abnormal behavior and intellectual deterioration. The patient, a Japanese adolescent female, first visited our department following an episode of twilight state, without any prior seizure history. On physical examination, no neurological abnormalities were noted. Magnetic resonance imaging revealed no abnormalities. During a conventional electroencephalographic (EEG) examination, an ictal EEG was incidentally recorded, showing a 30-second ictal focal seizure with impairment of consciousness. Detailed investigations were performed at Okayama University Hospital but no other abnormal findings were reported. Her seizures were resolved soon after treatment with levetiracetam The Wechsler Intelligence Scale for Children test before the start of treatment revealed an IQ of 67, which increased to 107 after several months of treatment with levetiracetam. We concluded that the patient's unusual symptoms at presentation were caused by frequent focal seizures mixed with a postictal state.
