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NEUROLOGY 1986;36:1256
© 1986 American Academy of Neurology

Basilar migraine

Polarity-dependent alteration of brainstem auditory evoked potential

Thoru Yamada, MD, Q. Stokes Dickins, MD, Karen Arensdorf, REEG T, James Corbett, MD and Jun Kimura, MD

Division of Clinical Electrophysiology, Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, IA.

We studied serial brainstem auditory evoked potentials (BAEPs) in a patient who had episodic basilar migraine. During migraine attack, significant alteration of wave IV-V was revealed only by rarefaction clicks. The alteration remained unchanged throughout the headache and reverted to normal when the headache subsided. In contrast, BAEPs with condensation clicks were normal during and after the headache.

Address correspondence and reprint requests to Dr. Yamada, EEC Lab, Carver Pavilion, University of Iowa Hospitals and Clinics, Iowa City, IA 52242.

Presented in part at the Central Association of Electroencephalographers, Minneapolis, MN, March 27, 1985.

Accepted for publication December 18, 1985.






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