Direct spinal versus peripheral nerve stimulation as monitoring techniques in epidurally recorded spinal cord potentials |
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| Authors: | T Morioka MD DMSc S Tobimatsu K Fujii H Nakagaki M Fukui M Kato K Shibata S Takahashi |
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| Institution: | (1) Department of Neurosurgery, Neurological Institute, Japan;(2) Department of Clinical Neurophysiology, Neurological Institute, Japan;(3) Department of Orthopaedics, Faculty of Medicine, Kyushu University, Fukuoka, Japan;(4) Department of Anaesthesiology, Faculty of Medicine, Kyushu University, Fukuoka, Japan;(5) Department of Neurological Surgery, College of Medicine, University of Florida, J. Hillis Miller Health Center, P.O. Box J-265, 32610 Gainesvile, FL, USA |
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| Abstract: | Summary We recorded spinal cord evoked potentials (SCEPs) and spinal somatosensory evoked potentials (spinal SEPs) in 30 operations following stimulation of the epidural spinal cord and the peripheral nerve, respectively, to compare their feasibility as an intraoperative technique for spinal cord monitoring. SCEPs produced quicker responses and had larger amplitudes with simpler waveforms. SCEPs could reflect residual function of the pathological spinal cord and predict the postoperative clinical outcome, findings which are not observed with spinal SEPs. Moreover, SCEPs had a much higher sensitivity to spinal cord insult. Therefore, we conclude that the SCEPs were more appropriate indicator than the spinal SEPs as an intra-operative monitoring method for spinal cord function. |
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| Keywords: | Spinal cord monitoring spinal cord evoked potentials spinal somatosensory evoked potentials spinal cord stimulation |
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