[Transcranial magnetic motor evoked potentials (MEP) and somatic sensory evoked potentials (SEP) in the management of cervical spondylitic myelopathy (CSM)].
Fourteen CSM patients with clinical findings of myelopathy had their diagnoses proved with MRI imaging and at operation. There were a control group of 28 normal subjects for MEP and another control group of 32 for SEP. The results of the study showed that 72.7% had MEP abnormality with prolongation of the central motor conduction time (CMCT) in 7 cases and absence of motor action potentials after C7 stimulation in one of the 11 patients. In 2 patients with prolongation of CMCT, normal SEPs were found in the same arm while 1 patient showed directly a reversal of the results. The short-term follow-up study in 10 patients showed normalization of the prolonged CMCT in one and reappearance of motor action potentials with C7 stimulation in another. The authors considered that the non-invasive and painless, transcranial magnetic stimulation of the motor pathways might be useful in the assessment and management of CSM patients and better than the electrical stimulation.
Tang
X
X
Department of Neurology, Peking Union Medical College Hospital, Beijing.
D000328:Adult; D002574:Cervical Vertebrae; D005071:Evoked Potentials; D005073:Evoked Potentials, Somatosensory; D005260:Female; D006801:Humans; D008280:Magnetics; D008297:Male; D008875:Middle Aged; D013118:Spinal Cord Diseases / Q000503:physiopathology*; D013128:Spinal Osteophytosis / Q000503:physiopathology*