Nonepileptic seizures: an overview

What is "treatment as usual" for nonepileptic seizures?

OBJECTIVE

A recent NINDS/NIMH/AES-sponsored international NES Treatment Workshop identified a lack of knowledge in the field regarding standard of care in the management of patients with psychological nonepileptic seizures (NES).

METHODS

We administered a survey to AES clinicians to determine actual postdiagnostic instructions given to patients and referral practices, or NES treatment as usual.

RESULTS

The majority of respondents were epileptologists, followed by neurologists, neuropsychologists, and nurses, evenly dispersed across the United States. Almost all respondents reported discussing the diagnosis of NES with the patients. Sixty-nine percent of neurologists continued to follow the patient after NES diagnosis. Treatment referrals were most commonly made to psychiatrists and psychologists. Antiepileptic drugs were tapered by 83% of the respondents, and 47% prescribed psychotropic medications if comorbid diagnoses were made.

CONCLUSION

This is the first known national survey that summarizes national practices and the range of care, or treatment as usual, offered to patients with NES.

Methodological issues in conducting treatment trials for psychological nonepileptic seizures

A randomized, placebo-controlled trial has yet to be completed in patients with psychological nonepileptic seizures (NES). Treatment publications for NES are limited to class III trials and class IV reports. Little is written on the methodology of treatment trials in NES. The authors describe the procedures and limitations of such a trial to inform future NES treatment trials, based on their prospective, open-label pharmacological, feasibility trial. The authors review the recruitment, enrollment, completion of surveys, compliance, and follow-up of patients with NES. The majority of patients who enrolled, readily completed surveys and took the medication during the trial. Twelve patients were screened, eight enrolled, and six completed the trial. The authors discuss the use of outcomes and the various symptoms scales in the trial. A comprehensive neuropsychiatric initial assessment and assessing cognitive, emotional, behavioral, and psychosocial measures are important for monitoring the outcomes in NES treatment RCTs.

The Treatment of Nonepileptic Seizures: Historical Perspectives and Future Directions

Nonepileptic seizures (NES) are neuropsychiatric disorders presenting with a combination of neurologic signs and underlying psychological conflicts. For more than a century, the medical community has accumulated data and insights about the phenomenology, epidemiology, risks, comorbidities, and prognosis of NES. However, we have not progressed much beyond anecdotal reports of treatments for NES, and no randomized, controlled trials of treatment for the disorder have been conducted. We review the diagnosis and treatment of NES and suggest directions for future research in these areas.

Treatment of nonepileptic seizures

Studies on nonepileptic seizures (NES) provide dichotomous data sets: extensive observational findings, but a paucity of controlled treatment data. Psychosocial stressors, whose full impact may lie outside a patient's awareness, often underlie NES. These stressors, along with patient's learned patterns of coping, may bring forth or potentiate comorbid psychiatric disorders. Patients with NES often have dysfunction in emotion regulation and family dynamics, as well as unemployment/disability. High percentages of comorbid disorders such as major depressive disorder, post-traumatic stress disorder, and cluster B personality with impulsivity (all disorders associated with serotonin system function) also exist in the NES population. The preliminary observational evidence suggests that specific psychotherapies and pharmacotherapy directed at comorbid conditions may be the most effective treatment for NES.