Description:

This soundless video of surgery for a left central area tumor demonstrates cortical mapping of the patient’s motor area prior to resection. The patient is a 72-year-old woman with a remote history of colon cancer who presented with one month of dizziness and progressive right hemiparesis. In the immediate post-operative period, she was lethargic and had worsening of her hemiparesis. Her mental status improved in the subsequent several days. She was discharged on post-operative day six to acute rehabilitation. At follow-up one week later, her right hemiparesis had improved her pre-operative baseline. Final pathology is glioblastoma multiforme, and she is undergoing chemotherapy and radiation. For a review of cortical mapping please refer to the following article: Pouratian, N. et al. Variablility of electrocortical stimulation mapping parameters across and within individuals. J Neurosurg 101:458–466, 2004. Robert Kellogg, MD; Richard Byrne, MD.