***TASK***
the task is to simplify the input abstract of a biomedical literature

***INPUT***
the input is the abstract of a biomedical literature

***OUTPUT***
the output is the simplified abstract for the input abstract of a biomedical literature

***DOCUMENTATION***

***EXAMPLES***

Input: Twelve studies, with a total of 343 participants, met our inclusion criteria (four RCTs and eight before and after non-controlled studies). Of the four RCTs, one examined patients with non-epileptic seizures and three had a mixed diagnosis (pseudoseizures, conversion disorder and somatisation disorder). Most of the non-randomised studies used non-epileptic seizure patients exclusively. Overall, five studies examined the effectiveness of psychotherapy, three examined CBT, two investigated hypnosis, one assessed paradoxical intention and one had a mixed intervention design. We classified two included studies as low risk of bias, one as unclear and nine as high risk of bias. Meta-analysis could not be undertaken due to the heterogeneity of design and interventions. Most included studies reported improved outcomes for the intervention under investigation. One RCT investigating the effectiveness of CBT in this patient group found a significant reduction in seizure frequency compared to controls (P < 0.001). There is little reliable evidence to support the use of any treatment, including CBT, in the treatment of non-epileptic seizures. Further randomised controlled trials of CBT and other interventions are needed.
Output:

Non-epileptic attacks look like epileptic seizures but they are not caused by epilepsy. There have been many investigations of the causes, but evidence about successful treatment is less available. We reviewed the existing studies treating people having non-epileptic attacks. We found 12 studies looking at different types of treatment such as psychotherapy, cognitive behavioural therapy and hypnosis. Three hundred and forty three participants were recruited to these 12 studies. Four studies were randomised controlled trials, and 8 were non-randomised studies. Most of the controlled trials included patients with other diagnoses as well as non-epileptic attacks. Most of the non-randomised studies included patients with mainly non-epileptic attacks. Most included studies reported improved outcomes for the treatment they were investigating. One randomised trial investigating Cognitive Behavioural Therapy found that seizures were significantly reduced. Due to the variety of treatments and designs of the included studies, it was not possible to combine the results to produce an overall outcome for our review. Many of the studies did not use satisfactory methods which meant that the evidence was rated as high risk of bias. The overall evidence for the main outcome of reducing seizures as a result of treatment is not considered reliable except in one study. Our conclusion is there is little reliable evidence to support the use of any treatment for people with non-epileptic attacks. The evidence in this review is up to date as from 4 February 2013.