This outcome data was obtained in a referral-based academic epilepsy center and loss to follow-up was considerable; the authors point out ways in which this may have biased their outcome data. Outcome was shown to be better in people with higher IQ, social status, greater educational attainments, younger age of onset and diagnosis, attacks with less dramatic features, and fewer additional somatoform complaints.For individuals who pursue treatment for PNES, CBT has shown varying rates of success but it has been established as one of the most promising treatments to date. ReACT has shown reduction in symptoms by 100% seven days after treatment and 82% of individuals who completed the therapy remained symptom free for 60 days. A follow-up has not been done to see if the therapy retained its reduction of symptoms beyond the 60 days. The largest trial of CBT for PNES though found no significant reduction in monthly seizures compared to the control arm at 12 months, however there were significant improvements on a number of secondary outcomes, such as psychosocial functioning, and self-rated and clinician-rated global change. History
Hystero-epilepsy is a historical term that refers to a condition described by 19th-century French neurologist Jean-Martin Charcot where people with neuroses "acquired" symptoms resembling seizures as a result of being treated on the same ward as people who genuinely had epilepsy. The etiology of FND was historically explained in the context of psychoanalytic theory as a physical manifestation of psychological distress and repressed trauma.
There is very little supporting evidence for this theory, as there is little research.The DSM-IV lists conversion disorders instead of the current FND. Additionally, in revision, the DSM-5 was updated to add emphasis to the positive physical signs inconsistent with recognized diseases. The requirement of a history of psychological stressors and that the symptom is not fake was removed as well. Society and culture
PNES rates and presenting symptoms are somewhat dependent on the culture and society. In some cultures, they, like epilepsy, are thought of as a curse or a demonic possession. In cultures with a solid establishment of evidence-based medicine, they are considered a subtype of a larger category of psychiatric disease. Terminology
The use of older terms including pseudoseizures and hysterical seizures are discouraged. In the English language, the word "seizure" usually refers to epileptic events, so some prefer to use more general terms like "events", "attacks", or "episodes", as the term "seizures" may cause confusion with epilepsy.PNES may also be referred to as "non-epileptic attack disorder" "functional seizures", "dissociative convulsions" or "dissociative non-epileptic seizures". These terms are more neutral as to cause, and given that a psychological cause cannot be identified in many cases, they may be more appropriate. Within DSM 5, patients presenting with PNES may meet the criteria for functional neurological disorder and in some cases, somatic symptom disorder, whilst in ICD 10 it may meet the criteria for a conversion disorder. References


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