[Changes in the somatosensory evoked potentials of patients with trauma to the cervical spinal cord].

Study of somatosensory induced potentials (SSIP) occurring in response to stimulation of the median nerve in a group of patients with damage (traumatic) to the cervical segment of the spine and spinal cord (34) showed a dependence of the degree of changes of the SSIP on the type of injury to the spinal cord. It was found that the changes of SSIP were more marked in transverse damage to the spinal cord than in ventral damage, and in a higher (C5-6) than in a lower (C7-8) level of the trauma. Under conditions of traumatic damage to the nervous system the produced IP will be more clear in changes of the stimulation parameters: reduction of the frequency of the stimulus and the number of summations in averaging.