[Somatosensory evoked potential in general anesthesia].
Somatosensory evoked potentials (SSEP) were investigated under general anaesthesia in 12 patients with no history of previous cerebral disease. With the commonly-used stimulation of the median nerve on the wrist, conduction from the homolateral Erb's point, and contralateral conduction from the mastoid and sensory cortical area, SSEP were registered during the first 100 msec. after the stimulation. Latency period, shape and amplitude of the spinal and subcortical components and early cortical potentials (N 20, P 28) show no change, whereas the consecutive negative and positive cortical SSEP show a definite change in shape and latency period. No change was registered in somatosensory impulse conduction and early cortical response under general anaesthesia and these can, therefore, be used during neurosurgery as a parameter for the control of cortical and subcortical functioning.
D000328:Adult; D000768:Anesthesia, General; D005073:Evoked Potentials, Somatosensory; D005260:Female; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000601:surgery; D008297:Male; D008875:Middle Aged
Das somatosensorisch evozierte Potential unter Bedingungen der Allgemeinanästhesie.