What is the role of somatosensory evoked potentials (SEPs) in the evaluation of trauma of the spinal cord?

Updated: Aug 20, 2019
  • Author: Jasvinder Chawla, MD, MBA; Chief Editor: Selim R Benbadis, MD  more...
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Answer

Answer

Scalp-recorded potentials are absent in complete lesions of the cervical spinal cord. However, incomplete lesions yield varying abnormalities on SEPs. SEPs can help localize the sensory level in trauma and also may help in determining prognosis for functional outcome. Latencies and amplitudes of tibial SSEPs can change over time after spinal cord injury (SCI). The early recordability of a tibial SSEP is associated with a favorable functional and neurological status and outcome after SCI.


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