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NEUROLOGY 1991;41:2005
© 1991 American Academy of Neurology

Contribution of concurrent Doppler and EEG in differentiating occipital epileptic discharges from migraine

E. Wilder-Smith, MD and A. C. Nirkko, MD

From the Department of Neurology, University of Berne, Switzerland.

In a young woman, episodes of visual symptoms were accompanied by simultaneous nonspecific EEG alterations. Concurrent Doppler sonography showed increased blood flow velocity with latency of a few seconds in the posterior cerebral arteries only. This is typical for local autoregulatory hyperperfusion due to increased neuronal activity, thus indicating focal epileptic discharges and excluding migrainous attacks.

Address correspondence and reprint requests to Dr. E. Wilder-Smith, Department of Psychiatry, Dunedin Hospital, University of Otago, King's Road, Dunedin, New Zealand.

Received October 19,1990. Accepted for publication in final form May 23,1991.






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