31. Intraoperative monitoring of motor cranial nerves and cranial nerve nuclei

Intraoperative neurophysiologic monitoring of cranial nerve function is primarily performed in those cranial nerves whose function has a motor component. The rationale, as well as the stimulation and recording techniques employed, is similar to that used in assessing the functional integrity of motor peripheral nerves. The primary difference is in the placement of the recording electrodes and the neural structures that are at risk for injury. In addition, cranial nerve dysfunction is not solely confined to a cranial nerve but can also involve the nucleus of the specific nerve.

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