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Facial Nerve Electromyography and Other Cranial Nerve Monitoring

Harper, C. Michel; Daube, Jasper R.

Section Editor(s): Nuwer, Marc R.

Journal of Clinical Neurophysiology: May 1998 - Volume 15 - Issue 3 - p 206-216
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Cranial nerves can be damaged during a variety of surgical procedures. The function of the cranial nerves can be monitored during surgery with electromyography (EMG), compound nerve and muscle action potentials (MAP), and auditory evoked potentials (AEP). We report important technical considerations that allow reliable recordings of these modalities during surgery, the criteria for determining a significant change in these electrophysiologic measures of function, the application of these techniques to specific surgical procedures, and the data that support the utility of cranial nerve monitoring.

Address correspondence and reprint requests to Dr. C. Michel Harper, Department of Neurology, EMG Laboratory, C2 Guggenheim, Mayo Clinic, 200 First St. S.W. Rochester, MN 55902, U.S.A.

Department of Neurology, Mayo Clinic Foundation, Rochester, Minnesota, U.S.A.

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