Short-latency median nerve somatosensory evoked potentials in three cases of parkinsonism and dopa responsive dystonia

Funct Neurol. 1995 Mar-Apr;10(2):99-105.

Abstract

We studied somatosensory evoked potentials after median nerve stimulation in a sporadic case of dopa responsive dystonia and in two brothers with different combinations of dystonia and parkinsonism. The latencies of all potentials were normal. The amplitude of the P20-N30 frontal complex showed a significant reduction in all cases. Our results suggest a common neurophysiopathological pattern underlying these two conditions.

Publication types

  • Case Reports
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Age of Onset
  • Antiparkinson Agents / administration & dosage
  • Antiparkinson Agents / therapeutic use*
  • Basal Ganglia / physiopathology
  • Dihydroxyphenylalanine / administration & dosage
  • Dihydroxyphenylalanine / therapeutic use*
  • Dystonia / drug therapy*
  • Dystonia / etiology
  • Electric Stimulation
  • Evoked Potentials, Somatosensory*
  • Female
  • Humans
  • Male
  • Median Nerve / physiopathology*
  • Middle Aged
  • Motor Cortex / physiopathology
  • Parkinson Disease / physiopathology*

Substances

  • Antiparkinson Agents
  • Dihydroxyphenylalanine