Correlation Between Processed Electroencephalogram and Clinical Findings During Wake-Up Test in Prone Position for Scheduled Posterior Cervical Spine Surgery: A Case Report.

A&A Practice
Kan MaAntoun Koht

Abstract

A 65-year-old man undergoing posterior cervical decompression and fusion demonstrated absent lower extremity evoked potential (EP) after prone positioning and before incision. Localized EP change pointed to either a technical or positional culprit. After excluding technical causes, we performed a wake-up test to rule out positioning as the culprit. During the test, we observed both symmetrical and asymmetrical hemispheric changes in density spectral array β and γ bands that correlated with awakening, eye-opening, and extremity movements. By providing real-time information on brain state, processed electroencephalogram (EEG) can facilitate a safe wake-up test by showing high-power β and γ activities that precede awakening.

References

Jun 1, 1973·Clinical Orthopaedics and Related Research·C VauzelleP Jouvinroux
Aug 13, 2003·Journal of Anesthesia·Fumi Yanagidate, Shuji Dohi
Jul 17, 2007·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Andreas EggspuehlerJiri Dvorak
Dec 24, 2013·The Spine Journal : Official Journal of the North American Spine Society·Parthasarathy D ThirumalaJeffrey R Balzer

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