A randomized cross-over study of the effects of lidocaine on motor and sensory evoked potentials during spinal surgery

Lidocaine has emerged as a useful adjuvant anesthetic agent for cases requiring intraoperative monitoring of motor evoked potentials (MEPs) and somatosensory evoked potentials (SSEPs). A previous retrospective study suggested that lidocaine could be used as a component of propofol-based intravenous anesthesia without adversely affecting MEP or SSEP monitoring, but did not address the effect of addition of lidocaine on the MEP and SSEP signals of individual patients.

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