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Updated: Jan 9, 2026

Simultaneous EEG Monitoring During Transcranial Direct Current Stimulation
Published on: June 17, 2013
D-Wave Spinal Cord Monitoring to Obviate the Need for Transcranial Motor Evoked Potentials in a Patient With
Jacqueline M Morano1, Michelle K Dickinson, John F Bebawy
1From the Department of Anesthesiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
Abstract:
Intraoperative neuromonitoring (IONM) involves repeated electrical stimulation of the nervous system to assess integrity of neural pathways. Transcranial motor evoked potentials (tcMEPs) require high levels of electrical stimulation and are not recommended for patients with neurologic stimulators in situ, such as a deep brain stimulator (DBS) system, due to the risk of device damage and patient harm. We describe a case of a patient with bilateral DBS undergoing a surgery with IONM, in which direct electrical response wave (D-wave) monitoring via an epidural electrode was used, rather than tcMEPs, to monitor the motor tracts while protecting and preserving the DBS.

