The use of motor evoked potentials in the diagnosis of psychogenic quadriparesis a case study

Nobuhito Morota, Vedran Deletis, Kiril Kiprovski, Fred Epstein, Ira Richmond Abbott, III

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We present a case illustrating the usefulness of motor evoked potentials (MEPs) in differentiating psychogenic from organic postoperative paralysis. Discussed is a 12-year-old girl who underwent surgery for the repair of a recurrent syringomyelia. On the 6 day after a proximal revision of her syringoperi- toneal shunt she returned to the hospital with deep quadriparesis, bowel and bladder incontinence, and complaining of severe headache. An MRI scan showed the syrinx to be collapsed, and removal of the shunt had no impact on her clinical symptoms. Repeat somatosensory evoked potentials (SEPs) showed no change in comparison to those obtained at the end of her preceding surgery. MEPs were normal for the lower extremities, a finding which is inconsistent with a severe upper motor neuron lesion. She was diagnosed with psychogenic paralysis, and fully recovered within 1 month. We propose that a neurophysiological evaluation including MEPs is useful in the differential diagnosis of psychogenic and organic motor weakness.

Original languageEnglish (US)
Pages (from-to)203-206
Number of pages4
JournalPediatric Neurosurgery
Volume20
Issue number3
DOIs
StatePublished - 1994
Externally publishedYes

Fingerprint

Motor Evoked Potentials
Quadriplegia
Paralysis
Syringomyelia
Somatosensory Evoked Potentials
Syringes
Motor Neurons
Headache
Lower Extremity
Urinary Bladder
Differential Diagnosis
Magnetic Resonance Imaging

Keywords

  • Motor evoked potentials
  • Psychogenic paralysis
  • Somatosensory evoked potentials
  • Syringomyelia

ASJC Scopus subject areas

  • Clinical Neurology
  • Pediatrics, Perinatology, and Child Health
  • Surgery

Cite this

The use of motor evoked potentials in the diagnosis of psychogenic quadriparesis a case study. / Morota, Nobuhito; Deletis, Vedran; Kiprovski, Kiril; Epstein, Fred; Abbott, III, Ira Richmond.

In: Pediatric Neurosurgery, Vol. 20, No. 3, 1994, p. 203-206.

Research output: Contribution to journalArticle

Morota, Nobuhito ; Deletis, Vedran ; Kiprovski, Kiril ; Epstein, Fred ; Abbott, III, Ira Richmond. / The use of motor evoked potentials in the diagnosis of psychogenic quadriparesis a case study. In: Pediatric Neurosurgery. 1994 ; Vol. 20, No. 3. pp. 203-206.
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