Is nocturnal paroxysmal dystonia a form of frontal lobe epilepsy?

Authors

  • H. Meierkord,

    1. The University Department of Clinical Neurology, Institute of Neurology and The National Hospitals for Neurology and Neurosurgery, Queen Square, London, England
    Search for more papers by this author
  • Dr. D. R. Fish,

    Corresponding author
    1. The University Department of Clinical Neurology, Institute of Neurology and The National Hospitals for Neurology and Neurosurgery, Queen Square, London, England
    • The National Hospitals for Neurology and Neurosurgery, Queen Square, London WC1N 3BG, England
    Search for more papers by this author
  • S. J. M. Smith,

    1. The University Department of Clinical Neurology, Institute of Neurology and The National Hospitals for Neurology and Neurosurgery, Queen Square, London, England
    Search for more papers by this author
  • C. A. Scott,

    1. The University Department of Clinical Neurology, Institute of Neurology and The National Hospitals for Neurology and Neurosurgery, Queen Square, London, England
    Search for more papers by this author
  • S. D. Shorvon,

    1. The University Department of Clinical Neurology, Institute of Neurology and The National Hospitals for Neurology and Neurosurgery, Queen Square, London, England
    Search for more papers by this author
  • C. D. Marsden

    1. The University Department of Clinical Neurology, Institute of Neurology and The National Hospitals for Neurology and Neurosurgery, Queen Square, London, England
    Search for more papers by this author

Abstract

The sex ratio, age at onset, and ictal features of nine patients with nocturnal paroxysmal dystonia were compared with those of eight patients with daytime frontal lobe seizures and eight patients with nocturnal motor attacks of known epileptic origin. All patients underwent video electroencephalography telemetry. There were no clinical features that would allow distinction between the groups and no single phenomenon was uniquely seen in nocturnal paroxysmal dystonia. This study provides no evidence that nocturnal paroxysmal dystonia is a separate diagnostic entity.

Ancillary