Abstract
Methods of monitoring spinal cord function during surgeries are described. In addition to somatosensory-evoked potentials (SSEPs) from the scalp by peripheral nerve stimulation and motor-evoked potentials (MEPs) in response to transcranial electric or magnetic stimulations, direct recording of spinal cord potentials (SCPs) from the epidural space could contribute to more precise monitoring of spinal cord function in cases such as surgeries of the spine or spinal cord, and cardiovascular surgeries which may cause spinal cord ischemia. Monitoring the SCPs by segmental peripheral nerve stimulation (segmental SCPs), by spinal cord simulation from the epidural space (conductive SCPs), or by transcranial electric or magnetic simulations (transcranial SCPs), may also be useful for monitoring of spinal cord function in a certain case. Multiple recordings and stimulations along the somatosensory or motor tracts may be useful for accurate monitoring of nervous system function during surgeries according to the types of operative manipulations.
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