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New approach to treating conversion disorder reduces seizures, improves co-morbid symptoms

Date:
July 2, 2014
Source:
Lifespan
Summary:
A cognitive behavior therapy-informed psychotherapy significantly reduces the seizures in patients with psychogenic nonepileptic seizures -- a conversion disorder present worldwide and that affects up to 400,000 people in the US -- a study finds.

A new study led by a Rhode Island Hospital researcher has found that a cognitive behavior therapy-informed psychotherapy significantly reduces the seizures in patients with psychogenic nonepileptic seizures (PNES), a conversion disorder present worldwide and that affects up to 400,000 people in the U.S. The study led by W. Curt LaFrance Jr., M.D., M.P.H., director of neuropsychiatry and behavioral neurology at Rhode Island Hospital and assistant professor of psychiatry and neurology at Brown University, is published online in advance of print in JAMA Psychiatry.

"PNES is much more common than people realize, in fact it's estimated to be as prevalent as multiple sclerosis," LaFrance said. "Patients with PNES often suffer from repeated seizures, as well as depression, anxiety and other behavioral and social issues, often to the point of severely impacting their quality of life. This study demonstrates that through treatments with the cognitive behavioral informed-psychotherapy workbook, we are able to significantly reduce the number of seizures, as well as the frequency and severity of co-morbid symptoms."

This is the first multi-site, multiple-modality, pilot randomized controlled trial for PNES. Researchers measured the effects of four treatment modalities: Medication only (sertraline); cognitive behavior therapy-informed psychotherapy (CBT-ip) only; CBT-ip plus medication (sertraline); or standard medical care/treatment as usual. Outcome measures included seizure frequency as the primary measure; and psychosocial and functioning measures, including psychiatric symptoms, social interactions, quality of life and global functioning, as secondary measures.

Results indicate that patients who received CBT-ip only experienced 51 percent fewer seizures and a significant improvement in the majority of the secondary measures including depression and anxiety. The combined CBT-ip and medication group showed a 59 percent reduction in seizures and significant improvement in some secondary measures. The medication-only group showed only a slight improvement in seizures; and the standard medical care/treatment as usual group did not show any significant improvement in primary or secondary measures.

"Too often patients are simply prescribed medications, without getting the much needed psychotherapy," LaFrance said. "In fact, many patients are misdiagnosed, and therefore are prescribed antiepileptic drugs, which can make PNES worse. But we found that this therapy alone can greatly reduce anxiety, depression and seizures -- much more so than medication alone, or standard medical care (SMC). This therapy is unique in that it takes the best methods from a few major psychotherapies and focuses on the common issues found in patients with seizures. This study shows that what is currently being done for PNES (SMC or supportive therapy) is not enough. We have to change the way we treat PNES, and now we have a method and a workbook that patients and therapists can use to do so."

He continued, "More research is needed to understand conversion disorders, but this is an important major step to providing more appropriate and effective treatments for PNES."


Story Source:

The above story is based on materials provided by Lifespan. Note: Materials may be edited for content and length.


Journal Reference:

  1. W. Curt LaFrance, Grayson L. Baird, John J. Barry, Andrew S. Blum, Anne Frank Webb, Gabor I. Keitner, Jason T. Machan, Ivan Miller, Jerzy P. Szaflarski. Multicenter Pilot Treatment Trial for Psychogenic Nonepileptic Seizures. JAMA Psychiatry, 2014; DOI: 10.1001/jamapsychiatry.2014.817

Cite This Page:

Lifespan. "New approach to treating conversion disorder reduces seizures, improves co-morbid symptoms." ScienceDaily. ScienceDaily, 2 July 2014. <www.sciencedaily.com/releases/2014/07/140702170028.htm>.
Lifespan. (2014, July 2). New approach to treating conversion disorder reduces seizures, improves co-morbid symptoms. ScienceDaily. Retrieved August 1, 2014 from www.sciencedaily.com/releases/2014/07/140702170028.htm
Lifespan. "New approach to treating conversion disorder reduces seizures, improves co-morbid symptoms." ScienceDaily. www.sciencedaily.com/releases/2014/07/140702170028.htm (accessed August 1, 2014).

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