title: Levetiracetam improves disinhibitory behavior in nonconvulsive status epilepticus.
abstract: BACKGROUND
  Nonconvulsive status epilepticus (NCSE) is a severe medical condition and heterogeneous disorder defined by different seizure types and diverse etiologies. NCSE occurs commonly in the elderly and is potentially misdiagnosed as a psychiatric disorder. Current treatment options for NCSE are still unsatisfactory.
  
  
  METHODS
  We report a case of NCSE in a 55-year-old epileptic male patient with a history of infectious encephalitis, disinhibitory behavior, and a suspected diagnosis of frontotemporal dementia. Add-on levetiracetam (LEV) to carbamazepine treatment improved clinical manifestations and abnormal electroencephalographic discharge.
  
  
  CONCLUSIONS
  With disinhibitory behavior in the elderly, the possibility of NCSE should be considered. Moreover, LEV may be an effective and well-tolerated pharmacotherapy for elderly NCSE patients.
authors.affiliation: Department of Psychiatry, Nara Medical University, 840 Shijo-cho, Kashihara, 634-8522 Nara Japan.
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Yamamuro
authors.affiliation: Department of Psychiatry, Nara Medical University, 840 Shijo-cho, Kashihara, 634-8522 Nara Japan.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Yoshino
authors.affiliation: Department of Neurosurgery, Nara Medical University, 840 Shijo-cho, Kashihara, 634-8522 Nara Japan.
authors.forename: Kentaro
authors.initials: K
authors.lastname: Tamura
authors.affiliation: Department of Psychiatry, Nara Medical University, 840 Shijo-cho, Kashihara, 634-8522 Nara Japan.
authors.forename: Toyosaku
authors.initials: T
authors.lastname: Ota
authors.affiliation: Department of Psychiatry, Nara Medical University, 840 Shijo-cho, Kashihara, 634-8522 Nara Japan.
authors.forename: Toshifumi
authors.initials: T
authors.lastname: Kishimoto
keywords: Disinhibitory behavior; Infectious encephalitis; Levetiracetam; Nonconvulsive status epilepticus; Psychiatric disorder