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Neurology. 2001 Sep 11;57(5):915-7.

How many patients with psychogenic nonepileptic seizures also have epilepsy?

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  • 1Department of Neurology, Comprehensive Epilepsy Program, University of South Florida College of Medicine, Tampa, FL 33606, USA.


The proportion of patients with psychogenic nonepileptic seizures (PNES) who also have epilepsy has been reported to vary from 10% to over 50%. The authors reviewed all 32 patients diagnosed with PNES in our EEG-video monitoring unit over a period of 1 year, and only 3 (9.4%) had interictal epileptiform discharges to support a coexisting diagnosis of epilepsy. Thus, the authors believe that only a small proportion of patients with PNES have coexisting epilepsy.

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