Summary
Thirteen patients with clinically and radiographically defined right middle cerebral artery infarction were studied using EEG, quantitative electroencephalographic (QEEG) spectra, and multi-channel evoked potentials. The purpose of this effort was to develop QEEG rules that related to the patient's neurologic status. Three QEEG relative delta spectral patterns were identified in the right hemisphere which related to neurologic residua. These include limited perisylvian involvement, mixed involvement of perisylvian and extrasylvian regions, and extrasylvian involvement only. While there were parallels between QEEG spectral patterns and auditory, visual and somatosensory evoked potentials, there were modality specific features consistent with functional differences.
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Acknowledgements: We wish to thank Dr. Ed Faught for his insights regarding EEG and metabolism and Dr. Frank Morrison for patient referral. Reidun Pickett, R.EEG, R.EP collected the data with her usual meticulous attention to detail. Our doctoral students, Alan Rampy, Susan Reamy Rampy, Beth Wallace and Jackie Clark assisted us in data and manuscript preparation. Partial funding for this research was provided by NIH grant NS 18276-06.
A preliminary report of this study was presented at the 113th American Neurological Association, October 2–5, 1988.
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Pool, K.D., Finitzo, T. & Hong, CT. Quantitative topographic electrophysiology and functional neurologic status in right middle cerebral artery infarction. Brain Topogr 3, 321–328 (1990). https://doi.org/10.1007/BF01135441
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DOI: https://doi.org/10.1007/BF01135441