Follow-up of psychogenic, non-epileptic seizures: a pilot study - experience in a Dutch special centre for epilepsy.

A follow-up study was performed in 33 patients with proven (ictal EEG-CCTV) psychogenic, non-epileptic seizures (PNES). These patients received a questionnaire to evaluate seizures, treatment and rehabilitation. The response group consisted of 21 females (80% response) and seven males (100% response). Follow-up after diagnosis varied from 23-67 months. Seven patients (25%) reported that seizures had ceased and of the patients not seizure-free seven did report a seizure-free period after diagnosis of an average 6.7 months. Eight patients were on antiepileptic drugs again. Of 13 patients referred for psychotherapy, who also did receive treatment, six became free of seizures and seven did not. Of seven patients also referred, but who did not receive psychotherapy, all continued to have seizures. On a self-rating scale to compare "overall function" at the time of diagnosis and follow-up, 75% considered themselves to have "improved", but no improvement could be detected in psychosocial functioning.