Prognostic significance of electrophysiological investigations in stroke patients: somatosensory and motor evoked potentials and sympathetic skin response

Neurophysiol Clin. 1995;25(3):146-57. doi: 10.1016/0987-7053(96)80167-5.


A prospective 3-month follow-up examination was carried out in 12 patients with supratentorial stroke. Motor evoked potentials (MEP), somatosensory evoked potentials (SEP) and sympathetic skin responses (SSR) were performed 1-7 days, 30 days and 3 months after stroke. The functional outcome measured by a daily activity index (Barthel index) was assessed 3 months after the stroke. There was a significant correlation between SEP and MEP results obtained for the first week and recovery of sensation and motility 3 months later. When initially normal, motor potentials evoked by transcranial magnetic stimulation had a significant predictive value for long-term functional outcome, whereas SEP and SSR did not. SSR present at the initial stage was correlated with the state of consciousness.

Publication types

  • Clinical Trial

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Cerebral Hemorrhage / physiopathology*
  • Cerebral Infarction / physiopathology*
  • Evoked Potentials, Motor / physiology*
  • Evoked Potentials, Somatosensory / physiology*
  • Female
  • Follow-Up Studies
  • Galvanic Skin Response / physiology*
  • Humans
  • Magnetics
  • Male
  • Middle Aged
  • Prognosis
  • Prospective Studies