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PEDIATRIC ANESTHESIA

Improvement of Motor-Evoked Potentials by Ketamine and Spatial Facilitation During Spinal Surgery in a Young Child

Thomas O. Erb, MD, MHS^*, Sven E. Ryhult, CRNA^*, Ewald Duitmann, CRNA^*, Carol Hasler, MD^*, Juerg Luetschg, MD, and Franz J. Frei, MD^*

*Department of Pediatric Orthopedic Surgery, Department of Pediatric Neurology and Neurophysiology. University Children’s Hospital Beider Basel, Basel, Switzerland

Address correspondence and reprint requests to Franz J. Frei, MD, Associate Professor, Department of Pediatric Anesthesiology, University Children’s Hospital Beider Basel, UKBB, Roemergasse 8, CH-4058 Basel, Switzerland. Address e-mail to Franz-J.Frei{at}unibas.ch.

Monitoring motor evoked potentials is desirable during spine surgery but may be difficult to obtain in small children. In addition, the recording of reliable signals is often hampered by the presence of various anesthetics. We report the case of a young child whose motor evoked potentials were successfully monitored using a ketamine-based anesthesia and a newly introduced stimulation technique consisting of combined spatial and temporal facilitation.

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