A comprehensive profile of clinical, psychiatric, and psychosocial characteristics of patients with psychogenic nonepileptic seizures

Anger regulation in patients with functional neurological disorder: A systematic review

BACKGROUND

Functional neurological disorder (FND) has been associated with predisposing psychological factors, including dysregulation of anger-related processes. This paper provides a systematic review of the literature on anger regulation in FND. We evaluated anger-related research on patient self-report, observational, and laboratory based measures in FND. The review also addresses adverse childhood experiences and their relation with anger regulation, and the effects of therapies targeting anger regulation in FND.

METHODS

MEDLINE, EMBASE, and PsycINFO were searched for both quantitative and qualitative research, published in a peer-reviewed journal with a sample size of at least 5 (registered under Prospero protocol CRD42022314340).

RESULTS

A total of 2200 articles were identified. After screening, 54 studies were included in this review (k = 20 questionnaire-based studies, k = 12 laboratory studies, k = 21 using other methods, and k = 1 used both questionnaires and other methods) representing data of 2502 patients with FND. Questionnaire-based studies indicated elevated levels of state anger and trait hostility in patients with FND. Laboratory studies showed a higher tendency to avoid social threat cues, attentional bias towards angry faces, difficulties reliving anger, and preoccupation with frustrating barriers among FND patients versus controls. No specific childhood experiences were identified related to anger regulation in FND, and too few small and uncontrolled studies were available (k = 2) to assess the effects of anger-related interventions in FND. The overall quality of the studies was fair (k = 31) to poor (k = 18). Five studies (k = 5) were rated as having a good quality.

CONCLUSIONS

This review suggests that patients with FND have maladaptive anger regulation compared to individuals without FND. The findings also highlight the need for further research on the prevalence and consequences of anger-related processes in the development, diagnosis and treatment of FND.

Prospective multicenter cohort study of possible psychogenic nonepileptic seizure cases-Results at 1-year follow-up examinations

OBJECTIVE

The primary purpose of this prospective multicenter study was to examine clinical and demographic feature differences according to the diagnostic level of psychogenic nonepileptic seizures (PNES) and then clarify whether prognosis may also differ accordingly.

METHODS

Two hundred forty-two consecutive patients strongly suspected of having PNES attacks were invited to participate, of whom 52 did not consent or contact was lost. At the 1-year follow-up examination, PNES diagnosis was reconsidered in nine patients. In 96 patients, the diagnostic level remained the same (P-group), with that in 43 considered to be clinically established (CE-group) and in 42 documented (D-group). The Qolie-10 and NDDI-E questionnaires were examined at both the study entry and the follow-up examination.

RESULTS

Multiple regression analysis of quality of life (QoL) score (n = 173; R²  = 0.374; F = 7.349; P < 0.001) revealed NDDI-E score (t = -6.402; P < 0.001), age of PNES onset (t = -3.026; P = 0.003), and ethnic minority status (t = 3.068; P = 0.003) as significant contributors. At entry, the P-group showed the lowest PNES attack frequency (P < 0.000), the lowest rate of antiseizure, antidepressant, and antipsychotic medication (P < 0.000; P = 0.031; P = 0.013, respectively), and the lowest proportion of psychosis (P = 0.046). At follow-up, PNES attack frequency (P < 0.000), number of admittances to emergency room (P < 0.000), and scores for QoL (P < 0.000) as well as depression (P = 0.004) were found to be significantly improved together with other collateral indicators, such as rate of antiseizure medication prescription (P = 0.001) and psychiatric symptoms (P = 0.03). Multiple regression analysis of a sample limited to patients with intellectual disability (ID) (n = 44; R²  = 0.366; F = 4.493; P = 0.002) revealed continued psychotherapy at follow-up (t = 2.610, P = 0.013) and successful reduction in antiseizure medication (t = 2.868; P = 0.007) as positively related with improved QoL.

SIGNIFICANCE

Clinical and the socio-psychological constellation of possible, clinically established, and documented PNES were found to differ greatly. Unexpectedly, significant effects of the continuous psychotherapeutic intervention were confirmed in PNES patients with ID.

Optimism and pessimism as predictors of seizure group among patients with intractable seizure disorders

The purpose of this study was to investigate the validity of the Revised Optimism-Pessimism Scale (PSM-R) as a measure of attributional style, and the incremental utility of optimism and pessimism as predictors of seizure group, in an intractable seizure disorder sample. Participants included adult patients with epileptic seizures (ES; n = 151) and psychogenic nonepileptic seizures (PNES; n = 173) whose diagnoses were confirmed by prolonged video/EEG monitoring (PVEM). Optimism and pessimism scores were computed from abbreviated versions of the MMPI for all participants. Analyses were conducted to examine the relationships between optimism, pessimism, and MMPI clinical scale scores. Logistic regression analyses were conducted to generate a model for the prediction of seizure group. Results supported the validity of the PSM-R as a measure of attributional style in an intractable seizure disorder sample. Both optimism and pessimism provided significant incremental predictive utility over and above other predictors of seizure group. There are advantages of using the proposed prediction model over other alternative differential diagnostic procedures, including lower cost, greater availability, and increased standardization. Overall, results indicated that attributional style is a clinically relevant index of personality and cognitive response to stress among an intractable seizure disorder sample.

Moderators of cognitive behavioural therapy treatment effects and predictors of outcome in the CODES randomised controlled trial for adults with dissociative seizures

OBJECTIVE

We explored moderators of cognitive behavioural therapy (CBT) treatment effects and predictors of outcome at 12-month follow-up in the CODES Trial (N = 368) comparing CBT plus standardised medical care (SMC) vs SMC-alone for dissociative seizures (DS).

METHODS

We undertook moderator analyses of baseline characteristics to determine who had benefited from being offered CBT 12 months post-randomisation. Outcomes included: monthly DS frequency, psychosocial functioning (Work and Social Adjustment Scale - WSAS), and health-related quality of life (Mental Component Summary (MCS) and Physical Component Summary (PCS) SF-12v2 scores). When moderating effects were absent, we tested whether baseline variables predicted change irrespective of treatment allocation.

RESULTS

Moderator analyses revealed greater benefits (p < 0.05) of CBT on DS frequency for participants with more (≥22) symptoms (Modified PHQ-15) or ≥ 1 current (M.I.N.I.-confirmed) comorbid psychiatric diagnosis at baseline. The effect of CBT on PCS scores was moderated by gender; women did better than men in the CBT + SMC group. Predictors of improved outcome included: not receiving disability benefits, lower anxiety and/or depression scores (PCS, MCS, WSAS); shorter duration, younger age at DS onset, employment, fewer symptoms and higher educational qualification (PCS, WSAS); stronger belief in the diagnosis and in CBT as a "logical" treatment (MCS). Some variables that clinically might be expected to moderate/predict outcome (e.g., maladaptive personality traits, confidence in treatment) were not shown to be relevant.

CONCLUSION

Patient complexity interacted with treatment. CBT was more likely to reduce DS frequency in those with greater comorbidity. Other patient characteristics predicted outcome regardless of the received intervention.

Increased suicide attempt risk in people with epilepsy in the presence of concurrent psychogenic nonepileptic seizures

OBJECTIVES

To test the hypothesis that people with concurrent diagnosis of epilepsy and psychogenic nonepileptic seizures (PNES) are at increased risk of attempting suicide as compared to people with epilepsy or PNES alone. To report on suicide rates.

METHODS

Retrospective cohort study from the UK largest tertiary mental health care provider, with linked nationwide admission and mortality data from the Hospital Episode Statistics and Office for National Statistics. Participants were 2460 people with a primary or secondary diagnosis of epilepsy, PNES or concurrent epilepsy and PNES attending between 1 January 2007 and 18 June 2021. The primary outcome was a first hospital admission for suicide attempt (International Classification of Diseases, version 10 X60-X84).

RESULTS

9% of participants had at least one suicide attempt-related hospital admission. For people with concurrent diagnosis of epilepsy and PNES, the odds for suicide attempt-related admissions were 2.52 times the odds of people with epilepsy alone (OR 0.40; 95% CI 0.21 to 0.79; p=0.01). Odds were comparable between people with concurrent diagnosis and people with PNES alone (OR 0.75; 95% CI 0.41 to 1.48; p=0.40). Post hoc analyses revealed that the odds of people with PNES alone were 1.93 times the odds of people with epilepsy alone (OR 0.52; 95% CI 0.38 to 0.70; p<0.001).

CONCLUSIONS

People with concurrent diagnosis of epilepsy and PNES or PNES alone have significantly increased odds of hospitalisation due to suicide attempt as compared to people with epilepsy alone (152% and 93% increase, respectively). These findings have direct implications for the clinical management of suicide risk in people with epilepsy.

Psychogenic nonepileptic seizures: clinical characteristics and outcome

BACKGROUND

Clinical characteristics, outpatient situation, and outcome in patients with psychogenic nonepileptic seizures (PNES) remain to be elucidated.

METHODS

Patients diagnosed with PNES after video-electroencephalography (EEG) monitoring (VEM) 03/2000-01/2016 at the Erlangen Epilepsy Center were surveyed between June 2016 and February 2017. Primary outcome was PNES cessation defined as no PNES episodes within > = 12 months prior to the interview. Secondary outcome variables included quality of life (QoL) and dependency. Sensitivity analysis included patients with proven PNES during VEM without comorbid epilepsy.

RESULTS

Ninety-nine patients were included (median age 38 (interquartile range (IQR 29-52)) years; 68 (69%) females, follow-up 4 (IQR 2.1-7.7) years). Twenty-eight (28%) patients suffered from comorbid epilepsy. Twenty-five (25%) patients reported PNES cessation. Older age at symptom onset (odds ratio (OR) related to PNES cessation: 0.95 (95% CI 0.90-0.99)), comorbid epilepsy (OR 0.16 (95% CI 0.03-0.83)), anxiety disorder (OR 0.15 (95% CI 0.04-0.61)), and tongue biting (OR 0.22 (95% CI 0.03-0.91)) remained independently associated with ongoing PNES activity after adjustment. Sensitivity analysis (n = 63) revealed depressive disorder (OR 0.03 (95% CI 0.003-0.34)) instead of anxiety as independent predictor, while this seemed relevant only in patients older than 26 years at onset (OR 0.04 (95% CI 0.002-0.78) versus OR 0.21 (95% CI 0.02-1.84) in patients  younger than 26 years). PNES cessation was associated with increased median QoL (8 (IQR 7-9) versus 5.5 (IQR 4-7); p < .001) and an increased frequency of financial independency (14 (56%) versus 21 (28%); p = .01).

CONCLUSIONS

We found poor outcomes in PNES especially in older patients at onset with comorbid depressive disorder. Comorbid epilepsy also seems to be a major risk factor of ongoing PNES activity, which in turn affects patients' daily living.

Functional seizures are not less important than epilepsy

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People with functional seizures often suffer from psychiatric comorbidities.

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People with FS report detrimental effects on social aspects of their lives.

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FS are associated with a considerable direct and indirect economic burden.

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FS have increased rates of mortality compared to healthy controls.

Functional seizures (FS) are frequently encountered in neurology clinics, often affect young adults, and have significant negative impacts on many aspects of a person’s life. In the current narrative review, we searched the literature regarding some of the consequences of FS (i.e., psychiatric comorbidities, social consequences, costs that are associated with the condition, cognitive impairment in patients with FS, the quality of life of the people with FS, and the increased risk of mortality that is associated with FS). Evidence shows that FS have significant negative consequences, comparable in their magnitude to those affecting patients with epilepsy. The clinical and scientific communities should take steps to address these consequences through clinical care and research that prioritizes, facilitates, and expedites evidence-based diagnosis and treatment for FS.

Title: Functional seizures across the adult lifespan: female sex, delay to diagnosis and disability

OBJECTIVE

The clinical characteristics of functional seizures may vary based on age-of-onset or age-of-presentation. Description of age-related differences has focused on three categories: pediatric, young-adult, and older-adult. We evaluated how factors continuously varied based on age-of-presentation across the adult lifespan.

METHODS

Based on cross-sectional data from 365 adult (18 to 88 years old) patients with documented diagnoses of functional seizures, we evaluated how the quantity and prevalence of specific ictal behaviors, historical factors, and comorbidities varied based on patient age-of-presentation using sequential weighted averages.

RESULTS

Four factors changed prominently with age-of-presentation: female predominance decreased at two inflection points - ages 35 and 62; the prevalence of work disability was higher until age-of-presentation 30 then plateaued at 80%; there was greater delay to diagnosis in older patients; and comorbidities was higher with age-of-presentation, starting from early adulthood. The proportion of patients who presented with functional seizures decreased after 50. Ictal behavior did not substantially vary with age-of-presentation.

CONCLUSION

The time from onset to diagnosis increased with age-of-presentation, which may be related to increased comorbidities and the misconception that FS do not start in older age. The female predominance decreased nonlinearly with age. By age 30, most patients' seizures already had substantial association with unemployment. These findings emphasize that patients can develop functional seizures at any age. The rapid development of disability relatively early in life, which then stays at a high prevalence rate, demonstrates the need for prompt referral for definitive diagnosis and treatment.

Depression and anxiety in patients from Lebanon with new onset functional seizures

OBJECTIVES

To prospectively compare the frequencies of depression and anxiety in patients with new onset functional seizures versus two age and gender-matched control groups consisting of patients with new onset epileptic seizures and normal individuals.

METHODS

Consecutive patients, 16 years and older, enrolled in a prospective study for suspected new onset epileptic seizures and diagnosed with documented functional seizures were included. We compared the depression and state and trait anxiety scores using the Beck Depression Inventory (BDI) and the State Trait Anxiety Inventory (STAI) between patients with functional seizures and the other two control groups.

RESULTS

The 33 patients with functional seizures had significantly higher depression and anxiety scores compared to those with epileptic seizures and normal controls. Twenty patients (60.6%) in the functional seizures group scored in the "depression" range compared to 5/33 (15.2%) in the epileptic seizures and 1/33 (3%) in the control groups. In the functional seizures group, 14/33 (42.4%) had scores in the "state anxiety" range compared to 6/33 (18.2%) and 2/33 (6.1%) in the epileptic seizures and normal control groups, respectively. Similarly, 15/33 (51.5%) of patients in the functional seizures group had scores in the "trait anxiety" range compared to 4/33 (12.1%) and 1/33 (3%) in the epileptic seizures and normal control groups, respectively.

CONCLUSIONS

Our results indicate that patients with new onset functional seizures frequently suffer from depression and anxiety at the time of their initial evaluation. These findings underscore the importance of screening for depression and anxiety in that patient population.

Evidence of objective sleep impairment in nonepileptic attack disorder: A naturalistic prospective controlled study using actigraphy and daily sleep diaries over six nights

Poor sleep is reported by many with nonepileptic attack disorder (NEAD) with correlations evident between self-reported sleep quality and mood and functional impairment. However, it is contended that self-reported sleep impairment in NEAD is a subjective phenomenon, which represents a general tendency to over-report symptoms or misinterpret bodily states in those with NEAD. The present study was therefore designed to investigate the extent of subjective and objective sleep impairments in those with NEAD. Over six nights we prospectively recorded comparable nightly objective (actigraphy) and subjective (consensus sleep diary) sleep parameters in a sample of 17 people with NEAD, and an age- and gender-matched normative control group (N = 20). Participants recorded daily measures of attacks, dissociation, and mood. Alongside higher subjective sleep impairment, the NEAD group had significantly worse objective sleep on several metrics compared to the normative controls, characterized by disrupted sleep (frequent awakenings and wake after sleep onset, low efficiency). Exploratory analyses using mixed effects models showed that attacks were more likely to occur on days preceded by longer, more restful sleep. This study, which had good ecological validity, evidences the presence of objective sleep impairment in NEAD, suggesting that in patient reports of problems with sleep should be given careful consideration in clinical practice.

Psychogenic Nonepileptic Seizures in Patients With Epilepsy: A Comparative Study With Patients With Pure Epilepsy

ABSTRACT

Psychogenic nonepileptic seizures (PNES) represent management challenges, especially if associated with epilepsy. We aimed to evaluate patients with mixed epilepsy (true and PNES) and compare them with pure epilepsy to identify predictors of psychogenic seizures. This study included 40 patients with pure epilepsy and 40 patients with mixed epilepsy matched in age and sex. Patients underwent neurological assessment, semistructured psychiatric clinical interview, and video electroencephalogram monitoring. We found that unemployment, divorce, and seizure frequency were higher in mixed epilepsy, as well as history of family dysfunction, child adversity, and depressive and dissociative disorders. Both groups were similar regarding family history for seizures and personality dysfunction scores. Family dysfunction, child adversity, and depressive disorders were predictors of PNES. We recommend early evaluation for social instability, family dysfunction, child adversity, and depressive disorders in epileptic patients with higher seizure frequency to avoid misdiagnosis of false drug-resistant epilepsy and enhance proper management.

Non-epileptic paroxysmal events in paediatric patients: A single tertiary centre study in Egypt

PURPOSE

The misdiagnosis of non-epileptic seizures (NES) as epilepsy is one of the most common pitfalls in neuropsychiatric practice. This study aimed to describe the percentage and types of NES among children who were referred for a diagnosis of epilepsy in Upper Egypt.

METHODS

We recruited a total of 876 patients who were referred to Sohag University Hospital, a tertiary referral centre in Upper Egypt, for the evaluation of suspected epilepsy. Relevant methods for the diagnosis of epilepsy, including medical history and examination, EEG, video-EEG, laboratory investigations, and brain imaging, were performed for all study participants.

RESULTS

Among the 876 patients who were referred for the diagnosis of suspected epilepsy during the period from June 2017 to October 2018, 171 patients (19.5 %) were diagnosed as having NES. In general, we found that NES in the paediatric age groups did not differ from that reported in various studies across several different populations. The most prevalent NES in our study was breath-holding spells (32.2 %), followed by syncope (17.5 %), psychogenic nonepileptic seizures (12.3 %), motor tics (9.9 %), and benign sleep myoclonus (7.6 %). Other less frequent NES included infantile masturbation (7 %), spasmus nutans (5.3 %), migraine (2.9 %), benign paroxysmal torticollis (2.9 %), night terrors (1.8 %), and shuddering attacks (0.6 %).

CONCLUSION

Ideally, neurologists should not misdiagnose NES as epilepsy, and whenever the diagnosis of NES is uncertain, an accurate diagnosis should be made using long-term video-EEG monitoring, especially in younger paediatric patients.

Suicide and suicidality in somatic symptom and related disorders: A systematic review

OBJECTIVE

We sought to determine the frequency of and risk factors for suicide outcomes in somatic symptom and related disorders and whether any risk was independent of co-occurring mental disorders.

METHODS

We conducted a systematic review of studies on suicide death, suicide attempts, and suicidal ideation in those with somatic symptom disorders published prior to September 22, 2020 and indexed in PubMED, MEDLINE, PsycARTICLES, PsycINFO, EMBASE, or SCOPUS according to PRISMA guidelines.

RESULTS

Our search yielded 33 articles with significant heterogeneity in study design, sample selection, and assessment for suicide or risk factors. While suicide deaths have not been adequately studied, somatic symptom and related disorders are associated with increased risk for suicidal ideation and suicide attempts, with estimates ranging from 24 to 34% of participants who endorsed current active suicidal ideation and 13-67% of participants who endorsed a prior suicide attempt. The risk appeared independent of co-occurring mental disorders. Identified risk factors for suicide attempts in samples with somatic symptom and related disorders include scores on measures of anger, alexithymia, alcohol use, past hospitalizations, dissociation, and emotional abuse.

CONCLUSION

Although the literature is sparse, there exists evidence for an association, even independent of other mental disorders, between somatic symptom and related disorders and suicide outcomes. Practice guidelines for the management of these disorders should incorporate recommendations for the assessment and management of suicide risk. Future study is necessary to more fully elucidate potential unique risk factors for those suffering from these complex disorders.

Psychosocial long-term outcome in patients with psychogenic non-epileptic seizures

PURPOSE

To evaluate psychosocial long-term outcome in patients diagnosed with psychogenic nonepileptic seizures (PNES) and to predict outcome of PNES, economic status, and quality of life (QoL) at follow-up.

METHODS

Patients diagnosed with PNES in the video-EEG-monitoring unit at our Epilepsy center between 2002-2016 were contacted by phone 1-16 years after communicating the diagnosis. Patients underwent a structured interview asking for current PNES status, psychosocial situation (economic status, marital status, setting of living, driving), depression, and QoL.

RESULTS

Of 70 PNES patients without comorbid epilepsy (age: 41.1 ± 13.5 years; 74 % female, follow-up: 5.2 ± 4.2 years), 23 patients (33 %) reported to be free of PNES during the last 12 months. Patients with cessation of PNES were younger at PNES onset (p < .01) and diagnosis (p < .01) and had a higher education (p < .05). At follow-up, the proportion of economically active patients only increased in individuals with cessation of PNES (p < .001) while an increased number of patients with persisting PNES relied on governmental support (p < .001). Cessation of PNES was associated with better mood (p < .01) and QoL (p < .001). In multiple regression models, cessation of PNES was only predicted by younger age at onset, while good economic outcome was determined by younger age and good economic status at diagnosis and cessation of PNES at follow-up. Good QoL at follow-up was predicted by low depressive symptoms, freedom of PNES, and economic activity at follow-up.

CONCLUSION

Long-term outcome in patients with PNES remains to be poor and the majority of patients continue to have PNES. Cessation of PNES was associated with good economic outcome, mood, and QoL.

An investigation into the preferred terminology for functional seizures

There is considerable debate in the literature regarding what to call functional seizures, with terms such as pseudoseizures, nonepileptic attack disorder (NEAD), and dissociative seizures being used. Provision of an accurate diagnosis and coherent explanation is a vital first step in the management of functional seizures and can result in cessation or reduced frequency for some individuals. This study investigated preferences for and offensiveness of terms used to describe functional seizures, and expectations for recovery with psychological treatment. A sample of 87 healthy adults completed an online survey, in which eight different diagnostic terms were ranked in order of preference (1 - most preferred, 8 - least preferred): functional nonepileptic attacks (FNEA), dissociative seizures, functional seizures, psychogenic seizures, NEAD, pseudoseizures, conversion disorder, and hysteria. Replicating Stone and colleagues protocol, each term was investigated for five connotations. Offense scores were calculated from the number of participants who selected 'yes' to at least one of the negative connotations ('Putting it on', 'Mad', and 'Imagining Symptoms'). Expectations about the possibility of recovering through medical or psychological treatment were also recorded. Functional nonepileptic attack was ranked the highest preferred term with dissociative seizures and functional seizures closely following. Nonepileptic attack disorder was the least offensive term, with FNEA and functional seizures joint second. Unsurprisingly, the three least preferred terms were also the most offensive: pseudoseizures, conversion disorder, and hysteria. Expectations of nonrecovery from psychological treatment were lowest for terms implicating a psychological cause: pseudoseizures, dissociative seizures, psychogenic seizures, and hysteria. The results suggest that either the terms FNEA or functional seizures should be adopted by healthcare professionals and patients, as they are the most preferred, least offensive, and expectations for nonrecovery with psychological treatment were moderate compared with the other terms. Limitations and areas for future research are discussed.

First do no harm: Preventing harm and optimizing care in psychogenic nonepileptic seizures

Psychogenic nonepileptic seizures (PNES) are challenging clinical occurrences consisting of any combination of altered movement, sensation, or awareness that resemble epileptic seizures (ES) but do not coincide with electrographic ictal discharges and are presumed to be neuropsychiatric-neurobehavioral in origin. Securing the PNES diagnosis is a crucial first step and is best confirmed by recording events on video-electroencephalogram (v-EEG) and finding an absence of ictal EEG changes and the presence of normal awake EEG rhythms before, during, and after the event. However, obstacles to timely diagnosis and referral to psychiatric treatment frequently occur, placing these patients at risk for harm from unnecessary medications and procedure as well as placing high burden on medical systems. Although providers across all disciplines share the responsibility by maintaining high suspicion of PNES in relevant clinical settings and engaging swiftly and empathically in securing and sharing the diagnosis with patients and families, psychiatric and neurologic providers are uniquely positioned to help lead patients towards safe and effective long-term care through a cohesive approach that is rooted in therapeutic alliance, interdisciplinary collaboration, and realistic treatment goals.

La experiencia de pacientes con crisis no epilépticas psicógenas: marcos interpretativos y de acción

Resumen La perspectiva del paciente se presenta como algo importante a tener en cuenta para la comprensión del padecimiento y para lograr un tratamiento efectivo. El objetivo de la presente investigación es indagar las trayectorias terapéuticas y las experiencias durante el recorrido terapéutico de pacientes con Crisis No Epilépticas Psicógenas (CNEP) pertenecientes a un Hospital General de la Ciudad Autónoma de Buenos Aires. Se realizaron entrevistas semiestructuradas a diez pacientes diagnosticados con CNEP. Para el análisis de los datos se utilizó una metodología cualitativa basada en los principios del análisis temático. Se ha identificado una categoría central: Itinerarios terapéuticos dentro del sistema etnomédico y tres subcategorías: (1) Diagnósticos Recibidos; (2) Recursos del sistema etnomédico y (3) Evaluaciones de los recursos utilizados. La dificultad de arribar a un diagnóstico y un tratamiento que permitiera mejorar las CNEP, así como el uso de distintas medicinas, fue destacada por la totalidad de los pacientes.

Early communication is key - Designing a new communication tool to immediately empower people with psychogenic nonepileptic seizures

INTRODUCTION

Patient empowerment and shared decision-making has been increasingly recognized as key factors for a favorable prognosis. This is particularly true in complex brain disorders such as psychogenic nonepileptic seizures (PNES) which go along with several challenges. People with PNES (PW-PNES) often feel lost in the healthcare system. Early clear communication is one of the few favorable prognostic variables. Our goal was to design a new ultrashort user-friendly communication tool allowing immediate patient empowerment.

METHODS

We conceptualized a design thinking process with patient engagement of PW-PNES. Together with a larger group of PW-PNES, we developed a comprehensive user-friendly 1-page document summarizing the key features of PNES. We applied document engineering (DE) as a cognitive science-based new methodology. Document engineering is well established in the aviation, oil, and mining industries and measurably reduces comprehension and performance errors.

RESULTS

The design thinking process encompassed 5 phases (empathize, ideate, define, prototype, and test). A prototype of a 1-page document, the 1-Pager-PNES, was created which contained the essential 7 domains organized in a simple structure such as a promise-question-answer (PQA) format. Information was kept poignant, complete, easy-to-read integrating cognitive principles to optimize navigation. The prototype "1-Pager-PNES" was subsequently tested in a 7-member focus group. All patients expressed significant improvement in understanding their disease and felt immediately empowered. Implementing their specific feedbacks, reiterative testing, and involving PNES experts resulted in the final version of the "1-Pager-PNES".

CONCLUSION

A promising new communication tool reduced to 1-page only is introduced which improves patient guidance and enables better coping mechanisms with this complex disease. The patient/user is empowered quickly through finding answers to pressing questions. Our study is unique for three reasons: 1) it engaged patients in the developing process, 2) it produced a tool for immediate communication for PW-PNES, which follows principles of human behavior and cognitive science, and 3) it used cross-industry thinking. Despite all limitations, we consider our small pilot study an inspiration for future studies with focus on patient empowerment through user-friendly documents.

Management of uncertainty in the diagnosis communication of psychogenic nonepileptic seizures in a South African context

The process of communicating a diagnosis of psychogenic nonepileptic seizures (PNES) is an integral part of the treatment process. Many international studies have therefore focused on the PNES diagnosis communication process, but to date, none with a specific focus on the South African context. This current study considered the factors that influence the patient's experience of uncertainty and the strategies employed to manage that uncertainty within the provider-patient communication. This was considered from the healthcare provider's point of view, within the specific context of diagnosis communication. We conducted 13 semi-structured interviews with providers, eliciting their perceptions related to the communication of a PNES diagnosis to patients. Data were analyzed using thematic analysis, and themes were grouped according to the main tenets of the interpersonal health communication theory of uncertainty management, which included, the experience, appraisal, and management of uncertainty. The results revealed medical, personal, and social forms of uncertainty. The social sources of uncertainty, which include challenges related to the South African healthcare system, cultural, and language variability within the South African context, as well as possible stigmatization, seemed to have the biggest influence not only on the other areas of uncertainty, but was also indicated as a barrier to effective uncertainty management by providers. Providers in this study identified the importance of building the provider-patient relationship and ensuring patient understanding, as the main strategies used to reduce uncertainty. There was some evidence to suggest varied emotional appraisals of uncertainty by patients, but because of the subjective nature of this information, further research would be needed to confirm these findings. These findings suggest that as providers, one cannot apply a one-size-fits-all approach when aiding in uncertainty management. Furthermore, it is pertinent to remain cognizant of the social realities of the South African context and its impact on the patient's uncertainty experience. More research is needed to understand patients' perceptions of uncertainty management within the context of PNES diagnosis communication, and how they align with the perceptions of the providers provided here.

Upper extremity conversion disorder in children

BACKGROUND

Conversion disorder in children presents a challenge to orthopedic surgeons. The condition is frequently associated with unnecessary diagnostic tests, treatments, and cost. The purpose of this study was to report a series of children with upper extremity conversion disorder to raise awareness for this uncommon condition and to assist with its diagnosis and management.

METHODS

A retrospective review was conducted of 4 pediatric patients with upper extremity conversion disorder at a tertiary pediatric hospital from 2015 to 2017. Medical records were reviewed for patient demographics, including psychiatric history, clinical findings, diagnostic studies, treatment, and cost of care.

RESULTS

Patients presented with upper extremity muscle stiffness, unremitting dysmorphic muscle spasms, weakness, pain, very limited shoulder range of motion, and complaints of recurrent shoulder dislocations. All patients had been evaluated by multiple specialists and had an extensive prior diagnostic workup that was inconclusive. Two patients had a history of prior psychiatric illness and suicidal ideation, and all patients expressed despair and depression. All patients had normal physical examination findings under anesthesia. Two patients with muscle stiffness were treated with botulism injections and improved their shoulder range of motion. The average total charge for care since presentation was $42,729.

CONCLUSIONS

Conversion disorder should be considered in patients with an extensive prior diagnostic workup, deficits inconsistent with anatomic patterns or imaging findings, and a history of prior psychiatric illness. Examination under anesthesia is a successful diagnostic approach in children with suspected conversion disorder.

Health-related quality of life in Veterans with epileptic and psychogenic nonepileptic seizures

RATIONALE

Health-related quality of life (HRQoL) is compromised in civilians with epileptic seizures (ES) or psychogenic nonepileptic seizures (PNES). U.S. Veterans are a distinct patient group with regard to gender, age, and background. We studied HRQoL in Veterans and asked the following: (1) Is there a difference in HRQoL in Veterans with ES vs. PNES?; (2) What factors influence HRQoL in each group?; (3) What factors influenced the difference between seizure groups?

METHODS

We studied consecutive Veterans entering the epilepsy monitoring units (EMUs) of three VA Epilepsy Centers of Excellence. Patients underwent continuous video-EEG monitoring. Seizure diagnoses followed established criteria. Health-related quality of life was measured with the Quality of Life in Epilepsy Inventory-31 (QOLIE-31). Evaluations included the Structured Clinical Interview for Diagnostic and Statistical Manual-IV (DSM IV), the posttraumatic stress disorder (PTSD) Checklist (PCL), the Beck Depression Inventory II (BDI-II), and the Minnesota Multiphasic Personality Inventory-2 Restructured form (MMPI-2RF). Between-group differences were tested with Wilcoxon tests. Nested regression analysis was used to evaluate the influence of demographic, social, military, seizure-related, and psychological factors on QOLIE-31 scores.

RESULTS

The median QOLIE-31 total score was 14 points lower in Veterans with PNES vs. ES (p < 0.001; Cohen's d = 0.73). Within each seizure group, psychological factors accounted for ≥50% of the variance in QOLIE scores while combined demographic, social, and seizure-related factors accounted for 18% (group with ES) and 7% (PNES). Psychological measures, particularly PCL and the BDI-II scores, accounted for all of the difference in QOLIE-31 total scores between Veterans with ES and those with PNES.

CONCLUSIONS

Health-related quality of life as measured by the QOLIE-31 is worse in Veterans with PNES as compared with those with ES. Psychological factors account for the most of the variance in QOLIE-31 scores regardless of seizure type and also account for the difference between groups with PNES and ES. Demographic, military, social, and seizure-related factors have minimal influence on HRQoL. These results in U.S. Veterans are similar to those found in civilians despite differences in patient age, gender, and background.

Assessing recent suicidal ideation and behavior in the adult epilepsy monitoring unit

OBJECTIVES

The objective of the study was to describe the prevalence of recent suicidal ideation and behavior in adult patients admitted to a tertiary epilepsy monitoring unit (EMU) and to assess the difference between patients with epileptic seizures, psychogenic nonepileptic spells (PNES), and other inpatient populations.

RESULTS

Over the 14-month period, 316 patients were included in the study. One hundred and seventy-nine (57%) were classified as having epilepsy (ES), 116 (37%) with PNES, and 21 (7%) with comorbid ES and PNES (ES/PNES). Overall, 25 patients (8%) were screened positive for suicide risk factors (recent suicidal ideation and/or suicidal behavior). Patients admitted to the EMU had double the risk of suicide ideation and behavior when compared with other inpatient populations. There was no significant difference in the risk of suicidal ideation and behavior among patients with ES, PNES, and comorbid ES/PNES. Patients with comorbid ES/PNES had the highest risk (14%), although this did not reach statistical significance. Across all groups, patients with any comorbid psychiatric disorder had increased rates of suicidal ideation and behavior (11% vs 5%, p = 0.04).

CONCLUSIONS

The rate of suicidal ideation and behavior in this sample of EMU patients was higher compared with other inpatient populations. The presence of a psychiatric disorder was independently associated with a higher risk. There was no statistically significant difference in the risk between those with ES and PNES. Screening for suicide risk, suicidal ideation, and behavior is recommended for all patients admitted to the EMU.

Nonepileptic Episodic Events

PURPOSE OF REVIEW

This review addresses the scope, evaluation, treatments, and outcomes of patients with nonepileptic episodic events with a focus on psychogenic nonepileptic seizures. Differentiation of the types of events, including a review of terminology, is included, as well as a brief review of special patient populations with these disorders.

RECENT FINDINGS

There are continued efforts to develop tools to improve the diagnosis of these disorders. A thorough evaluation with trained personnel and physicians knowledgeable in the assessment and treatment of these disorders is important. Although inpatient video-EEG monitoring in an epilepsy monitoring unit remains the gold standard for diagnosis, the assessment of clinical and historical factors is critical and can be useful in expediting the process and improving diagnostic certainty. International efforts have recently assisted in providing guidelines for the evaluation of the psychogenic disorders and may help target educational and other resources to underserved areas.

SUMMARY

The prompt and accurate diagnosis of nonepileptic episodic events and psychogenic nonepileptic seizures is possible with current technology, and the appropriate and targeted use of evidence-based treatments may help improve patient quality of life and avoid unnecessary disability in patients with these disorders.

The effectiveness and acceptability of a guided self-help Acceptance and Commitment Therapy (ACT) intervention for psychogenic nonepileptic seizures

This study utilized a nonconcurrent case-series design to examine the effectiveness and acceptability of a guided self-help Acceptance and Commitment Therapy (ACT) intervention for people with psychogenic nonepileptic seizures. A key aim of the study was to investigate the relationship between psychological flexibility (a key process within ACT), psychological health, quality of life, and seizure frequency. Six participants completed the study, with reliable and clinically significant changes in psychological flexibility, quality of life, and psychological health observed in the majority of participants. Notable reductions in self-reported seizure frequency were also observed. The implications of these findings for clinical practice are discussed and recommendations for future research suggested.

Neuropsychiatric features of the coexistence of epilepsy and psychogenic nonepileptic seizures

OBJECTIVE

To investigate demographic, epidemiologic and psychiatric features suggestive of the coexistence epilepsy (ES) and psychogenic nonepileptic seizures (PNES) that may contribute to precocious suspicion of the association.

METHODS

In this exploratory study, all patients older than 16 years admitted to prolonged video-electroencephalogram monitoring were evaluated about demographic, epileptological and psychiatric features. Detailed psychiatric assessment using M.I.N.I.-plus 5.0, Beck Anxiety Inventory, Beck Depression Inventory and the Childhood Trauma Questionnaire (CTQ) was performed. Data were collected previous to the final diagnosis and patients with ES-only, PNES-only or coexistence of ES/PNES were compared.

RESULTS

Of 122 patients admitted to epilepsy monitoring unit, 86 patients were included and 25 (29%) had PNES. Twelve (14%) had PNES-only, 13 (15%) had ES/PNES and the remaining 61 (71%) had only ES. A coexistence of ES and PNES was associated with clinical report of more than one seizure type (p˂0.001), nonspecific white matter hyperintensities on MRI (p < .001) and a past of psychotic disorder (p = .005). In addition, these patients had significantly more emotional abuse and neglect (p < .002 and 0.001, respectively). Somatization (including conversion disorder) was the most common diagnosis in patients with PNES- only (83%) and co-existing of PNES and ES (69.2%), differentiating both from ES-only patients (p < .001).

CONCLUSION

The high prevalence of this coexistence ES/PNES in this study reinforces a need to properly investigate PNES, especially in patients with confirmed ES who become refractory to medical treatment with antiepileptic drugs. The neuropsychiatric assessment may help to diagnostic suspicion and in the planning of therapeutic interventions.

Early outcomes in youth with psychogenic nonsyncopal collapse

Objective

To evaluate several early outcome measures following diagnosis of psychogenic nonsyncopal collapse (PNSC).

Methods

Over a 34-month period, a prospective cohort study was conducted of patients referred for tilt-table evaluation of fainting and orthostatic intolerance. Clinical histories were obtained and anxiety and depressive symptom questionnaires were completed prior to testing. Among 539 patients referred, 100 (18.6%) were diagnosed with PNSC. Outcome data were collected by telephone or during routine follow-up a median of 572 days postdiagnosis.

Results

Eighty-four patients (84%) provided outcome data. Following communication of the diagnosis, 32 patients (38%) had immediate PNSC resolution. Attack resolution occurred in 44% by 1 month, 51% by 6 months, 52% by 12 months, 69% after 12 months, and 31% continued to have PNSC at the time of follow-up. Patients with continued PNSC had higher anxiety scores than patients with immediate resolution (p = 0.047). Following diagnosis, emergency department visits for fainting decreased from 78.6% to 20.2% (p = 0.017), and management by psychology or psychiatry increased from 26.2% to 76.2% (p < 0.001). During the follow-up period, 8 patients (9.5%) were hospitalized for suicidal ideation, a median of 253 (range 33–470) days postdiagnosis; 12 patients (14.3%) developed new (non-PNSC) conversion disorders, a median of 86 (range 9–504) days postdiagnosis. Suicidal ideation was associated with higher anxiety (p = 0.007) but not higher depression scores.

Conclusions

The diagnostic rate of PNSC parallels that of PNES among patients referred for tertiary care evaluations. The improvements in attack frequency following PNSC diagnosis must be tempered by the potential risks of self-harm and the development of new conversion disorders.

Increased odds and predictive rates of MMPI-2-RF scale elevations in patients with psychogenic non-epileptic seizures and observed sex differences

OBJECTIVE

The Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF) is a self-report instrument, previously shown to differentiate patients with epileptic seizures (ES) and psychogenic non-epileptic seizures (PNES). At present, the odds of MMPI-2-RF scale elevations in PNES patients, as well as the diagnostic predictive value of such scale elevations, remain largely unexplored. This can be of clinical utility, particularly when a diagnosis is uncertain.

METHOD

After looking at mean group differences, we applied contingency table derived odds ratios to a sample of ES (n=92) and PNES (n=77) patients from a video EEG (vEEG) monitoring unit. We also looked at the positive and negative predictive values (PPV, NPV), as well as the false discovery rate (FDR) and false omission rate (FOR) for scales found to have increased odds of elevation in PNES patients. This was completed for the overall sample, as well as the sample stratified by sex.

RESULTS

The odds of elevations related to somatic concerns, negative mood, and suicidal ideation in the PNES sample ranged from 2 to 5 times more likely. Female PNES patients had 3-6 times greater odds of such scale elevations, while male PNES patients had odds of 5-15 times more likely. PPV rates ranged from 53.66% to 84.62%, while NPV rates ranged from 47.52% to 90.91%. FDR across scales ranged from 15.38% to 50%, while the FOR ranged from 9.09% to 52.47%.

CONCLUSIONS

Consistent with prior research, PNES patients have greater odds of MMPI-2-RF scale elevations, particularly related to somatic concerns and mood disturbance. Female PNES patients endorsed greater emotional distress, including endorsement of suicide related items. Elevations of these scales could aid in differentiating PNES from ES patients, although caution is warranted due to the possibility of both false positives and the incorrect omissions of PNES cases.

Health care utilization following diagnosis of psychogenic nonepileptic seizures

OBJECTIVES

The long-term outcome of patients with psychogenic nonepileptic seizures (PNES) is of importance given the disabling symptoms and tendency to affect patients early in their productive years. Health care utilization (HCU) is an important outcome measure reflecting overall health status and costs. There is little information regarding long-term HCU following diagnosis of PNES.

METHODS

We retrospectively reviewed records of Veterans diagnosed with PNES during epilepsy monitoring unit (EMU) evaluation. For the three-year period following diagnosis of PNES, we reviewed emergency department (ED) visits, hospitalizations, outpatient clinic visits, and radiology procedures. We compared the three years following PNES diagnosis with the three years preceding diagnosis. We also compared patients with PNES and patients with epileptic seizures (ES).

RESULTS

Emergency department visits and hospitalizations were more frequent in patients with PNES compared with those in patients with ES (p=0.01). There was no overall improvement in HCU during the three-year interval following diagnosis of PNES. A transient decrease during the year following diagnosis was not sustained over three-year follow-up. Pain complaints rather than seizures were the most common reason for presentation, whereas the opposite was true for patients with ES (p<0.01). There was a sharp decrease in neurology outpatient visits (p<0.001) and a decrease in primary care visits (p<0.05) after PNES was diagnosed. Total outpatient visits were unchanged.

CONCLUSIONS

Overall HCU did not improve during the three years following diagnosis of PNES, compared with three years preceding diagnosis. The results add to studies documenting poor seizure outcomes following diagnosis of PNES and underscore the need for more effective and comprehensive treatments, addressing comorbid symptoms.

Nonepileptic seizures - subjective phenomena

Psychogenic nonepileptic seizures (PNES) superficially resemble epileptic seizures or syncope and most patients with PNES are initially misdiagnosed as having one of the latter two types of transient loss of consciousness. However, evidence suggests that the subjective seizure experience of PNES and its main differential diagnoses are as different as the causes of these three disorders. In spite of this, and regardless of the fact that PNES are considered a mental disorder in the current nosologies, research has only given limited attention to the subjective symptomatology of PNES. Instead, most phenomenologic research has focused on the visible manifestations of PNES and on physiologic parameters, neglecting patients' symptoms and experiences. This chapter gives an overview of qualitative and quantitative studies providing insights into subjective symptoms associated with PNES, drawing on a wide range of methodologies (questionnaires, self-reports, physiologic measures, linguistic analyses, and neuropsychologic experiments). After discussing the scope and limitations of these approaches in the context of this dissociative phenomenon, we discuss ictal, peri-ictal and interictal symptoms described by patients with PNES. We particularly focus on impairment of consciousness. PNES emerges as a clinically heterogeneous condition. We conclude with a discussion of the clinical significance of particular subjective symptoms for the engagement of patients in treatment, the formulation of treatment, and prognosis.

Improving first responders' psychogenic nonepileptic seizures diagnosis accuracy: Development and validation of a 6-item bedside diagnostic tool

OBJECTIVE

Epileptic seizures (ES) are often seen as a medical emergency, and their immediate and accurate recognition are pivotal in providing acute care. However, a number of clinical situations may mimic ES, potentially leading to misdiagnosis at the emergency room and to inappropriate prescription of antiepileptic drugs (AED) in the acute and chronic settings. Psychogenic nonepileptic seizures (PNES) play a major role in this scenario and often delay the correct diagnosis and increase treatment morbidity and cost. First responders often conduct the initial assessment of these patients, and their impression may be decisive in the prehospital approach to seizures. We sought to investigate and improve the accuracy of PNES diagnosis among professionals involved in the initial assistance to patients with seizures.

METHODS

Fifty-three registered nurses, 34 emergency physicians, 33 senior year medical students, and 12 neurology residents took a short training program consisting of an initial video-based seizure assessment test (pretest), immediately followed by a 30-minute presentation of a 6-item bedside diagnostic tool and then a video-based reassessment (posttest). Baseline status and learning curves were determined.

RESULTS

The distinct professional categories showed no significant differences in their ability to diagnose PNES on both pretests and posttests. All groups improved diagnostic skills after the instructional program.

SIGNIFICANCE

The findings helped determine the best identifiable PNES clinical signs and to provide initial validation to a novel diagnostic instrument. In addition, our results showed that educational measures might help in the identification of PNES by first responders, which may decrease the treatment gap.

Nonepileptic seizures - objective phenomena

This chapter describes the evaluation process for the diagnosis of psychogenic nonepileptic seizures (PNES), which is determined based on concordance of the composite evidence available, including historic and physical exam findings, seizure semiology, and ictal/interictal electroencephalogram (EEG). No single clinical feature is pathognomonic of PNES. The diagnosis of PNES can be at times challenging, such as when seizure documentation on video-EEG cannot be readily achieved. A multicomponent approach to the diagnosis of PNES, with use of all available evidence, may facilitate diagnosis and then care of patients with PNES. Emerging evidence supports the use of symptom identification by the patient as part of the treatment of these patients. With advances in diagnostic methods and criteria, the diagnosis of PNES can be made reliably.

Personalities of patients with nonepileptic psychogenic status

The purposes of this study were to determine whether personalities of patients with nonepileptic psychogenic status (NEPS) are different from those of patients with typical intermittent psychogenic nonepileptic seizures (iPNES) using the Personality Assessment Inventory (PAI) and to compare their PAI profiles with the population norms. We hypothesized that patients with NEPS have more psychopathology compared with patients with iPNES and that, as a group, patients with PNES (iPNES+NEPS) would have more psychopathology compared with healthy individuals. We first compared the PAI profiles of patients with iPNES and NEPS and then the profiles of patients with NEPS, iPNES, and PNES with population norms in order to assess which PAI specific scales differed between groups in order to better characterize the psychopathology of PNES. All patients admitted for diagnostic evaluation to the epilepsy monitoring unit (EMU) were prospectively approached for participation. All patient/family interviews were conducted by an epileptologist, and the diagnosis of iPNES or NEPS was confirmed in all cases through video/EEG and/or family interview. The population norms for PAI were obtained from the manual. Of the 224 approached patients, 130 completed the PAI, and included 43 iPNES and 11 with NEPS. There were no significant differences between the two groups in regard to demographic or PAI profiles. Comparison with population norms revealed the presence of abnormal personality profiles on all scales in patients with iPNES, NEPS, or PNES. We conclude that while the occurrence of NEPS is relatively common in patients with PNES, the demographic characteristics and personality profiles of patients with NEPS are not different from those of patients with iPNES. We also confirmed the presence of significant psychopathology in the group with PNES when compared with population norms.

Multimodular psychotherapy intervention for nonepileptic attack disorder: an individualized pragmatic approach

Nonepileptic attack disorder (NEAD) is a highly distressing and costly condition commonly seen in specialist epilepsy clinics. Consistently effective treatments for NEAD remain elusive, and findings from research indicate that there is no one form of psychological therapy that will be effective in such a heterogeneous group of patients. In this paper, we propose a multimodular approach to psychological therapy in NEAD, which allows the clinician to tailor an individualized management program for the patient appropriate to his/her needs.

Psychological problems and clinical outcomes of children with psychogenic non-epileptic seizures

PURPOSE

Our purpose was to investigate psychological problems and clinical outcomes in children with psychogenic non-epileptic seizures (PNES).

MATERIALS AND METHODS

We retrospectively reviewed the data of 25 patients who were diagnosed with PNES between 2006 and 2012.

RESULTS

Twenty-five children with PNES, aged 8 to 19 years (mean 13.82), were referred to psychiatrists for psychiatric assessment. On their initial visit, 72% of patients had comorbid psychological problems, including depression, anxiety, conduct disorder, adjustment disorder, Attention Deficit Hyperactivity Disorder, schizophrenia, and bipolar disorder. Among these, depression was the most frequent (36%). Predisposing and triggering factors included familial distress (40%), social distress (24%), and specific events (20%). The following treatment was advised based on the results of the initial psychological assessment: 3 patients regularly visited psychiatric clinic to assess their clinical status without treatment, nine underwent psychotherapy, and 13 received a combination of psychotherapy and psychopharmacological therapy. At the mean follow-up of 31.5 months after diagnosis, 20 patients (80%) were event-free at follow-up, three (12%) showed reduced frequency, and two (8%) experienced persistent symptoms.

CONCLUSION

The outcomes of PNES in children are much better than those in adults, despite a high rate of psychological comorbidities.

Biopsychosocial predictors of psychogenic non-epileptic seizures

BACKGROUND

Previous studies have identified numerous biological, psychological and social characteristics of persons with psychogenic non-epileptic seizures (PNES) however the strength of many of these factors have not been evaluated to determine which are predictive of the diagnosis compared to those that may only be stereotypes with limited clinical utility.

METHOD

A retrospective chart review of persons admitted to our epilepsy monitoring unit over a 6-year period was conducted to examine predictors of a video-EEG confirmed PNES diagnosis.

RESULTS

A total of 689 patients had events leading to a diagnosis, 47% (n=324) with PNES only, 12% (n=84) with PNES & Epilepsy and 41% (n=281) with Epilepsy only. Five biological predictors of a PNES only diagnosis were found; number of years with events (OR=1.10), history of head injury (OR=1.91), asthma (OR=2.94), gastro-esophageal reflux disease (OR=1.72) and pain (OR=2.25). One psychological predictor; anxiety (OR=1.72) and two social predictors; being married (OR=1.81) and history of physical/sexual abuse (OR=3.35). Two significant biological predictors of a PNES & Epilepsy diagnosis were found; migraine (OR=1.83) and gastro-esophageal reflux disease (OR=2.17).

CONCLUSIONS

Our findings support the importance of considering the biopsychosocial model for the diagnosis and treatment of PNES or PNES with concomitant epilepsy.

Distinguishing between patients with pure psychogenic nonepileptic seizures and those with comorbid epilepsy by means of clinical data

Patients with psychogenic nonepileptic seizures (PNESs) often have additional epileptic seizures (ESs). Distinguishing between those with ESs and those without ESs is difficult but mandatory. We hypothesize that these two patient groups differ in clinical data, which might be useful for establishing diagnosis. All patients with PNESs (n=114) from the Bethel Epilepsy Centre treated between 1/11/2010 and 1/11/2011 were included. Thirty-six percent had additional epilepsy. In contrast, 84 of the 114 patients with PNESs took antiepileptic drugs (AEDs) (AED treatment: patients with PNESs=44/73, patients with PNESs+ESs=40/41), most of them (65.5%) as polytherapy. Significant differences between both groups were as follows: patients with PNESs were older at disease onset, had a shorter duration from onset to inpatient visit, were less frequently on AEDs, were less frequently on antiepileptic polytherapy, and had a normal EEG compared with patients with PNESs+ESs. Multivariate stepwise logistic regression revealed age at seizure onset, number of AEDs, and difference between number of AEDs and psychiatric drugs as significant predictors of patients with ESs in PNESs (Nagelkerke's r2=0.59). Therefore, clinical data proved to be useful in the diagnostic process.

Predictors of suicide in patients with conversion disorder

OBJECTIVE

Previous studies have shown that the ratio of suicide attempts is between 19.6 and 34.2% in patients with conversion disorder (CD), yet few studies have addressed this issue. The present study compared demographic and clinical variables and predictors of suicide attempts in patients with CD.

METHODS

A total of 100 consecutive patients were recruited and divided into groups according to their history of suicide attempts. Socio-demographic variables such as economic status, age, gender, educational level, marital status, clinical variables such as the presence of psychiatric disorder in family, substance abuse, risky alcohol use, age of onset, subtype of CD, number of hospitalization were recorded. Participants also completed the Childhood Trauma Questionnaire (CTQ-28), Temperament and Character Inventory (TCI), Toronto Alexithymia Scale (TAS-20), Dissociative Experiences Scale (DES), Beck Anxiety Inventory (BAI), and Beck Depression Inventory (BDI).

RESULTS

Suicide attempters had a higher rate of risky alcohol use, more hospitalizations, and higher mean scores on the BAI, BDI, DES/DES-taxon, TAS-total and CTQ-total than did non-suicide attempters or healthy control (NHC). Patients with CD had a higher harm-avoidance and a lower self-directedness rather than NHC. Risky alcohol use, number of hospitalizations, and mean DES-taxon and emotional abuse scores were independent predictors of suicide attempts.

CONCLUSION

Our findings indicate that clinicians should be aware of the prediction of suicide in patients with CD who show dissociation and risky alcohol use. Moreover, a history of childhood emotional abuse should be considered in the management of CD. The fact that clinical variables distinguished between suicide attempters and non-attempters suggests that a history of suicide attempts may be used to clarify the heterogeneous nature of CD.

Understanding the perceived treatment needs of patients with psychogenic nonepileptic seizures

Psychological therapy is generally considered the treatment of choice for psychogenic nonepileptic seizures (PNES), but there is a paucity of research on patients' attitudes towards psychological referral. We conducted semistructured interviews with twelve patients with PNES awaiting psychological treatment in order to understand their perceived treatment needs. Data were analyzed inductively according to the principles of thematic analysis. The results indicated that our patients had clear ideas about their treatment needs and a desire to recover by 'returning to normality'. Many participants felt 'caught in limbo' following their PNES diagnosis, however, because of uncertainties about their condition and a lack of support from professionals. This linked with participants feeling unsure whether psychological treatment would meet their needs; there was also apprehension for some participants about the potential negative consequences of therapy. The clinical implications of these findings are discussed, and recommendations for future research are made.

Psychologic treatment of patients with psychogenic nonepileptic seizures

Psychogenic nonepileptic seizures are relatively common, often disabling and costly to patients and society. Most authorities consider psychologic treatment as the therapeutic intervention of choice. This review is intended primarily for psychologists and therapists who treat patients with psychogenic nonepileptic seizures, and for neurologists who make the diagnosis and wish to find out more about psychologic treatment options. The first section describes the nature and etiology of psychogenic nonepileptic seizures. General questions regarding the psychologic treatment of patients with psychogenic nonepileptic seizures are addressed, before discussing specific therapeutic approaches. The final part summarizes the authors' views on optimal treatment and the direction of future research.

Brief group psychoeducation for psychogenic nonepileptic seizures: a neurologist-initiated program in an epilepsy center

OBJECTIVE

To evaluate therapeutic efficacy upon augmenting the initial communication to patients regarding the diagnosis of psychogenic nonepileptic seizures (PNES) with a novel, brief group psychoeducation administered by the same team that provided the video-electroencephalography (VEEG) confirmed diagnosis and within 4 weeks of the diagnosis.

METHODS

Prior to discharge from the epilepsy monitoring unit (EMU), a standardized communication strategy was utilized to explain the diagnosis of PNES to all patients prior to enrollment. Enrolled patients were then randomized to either participation in three successive and monthly group psychoeducational sessions (intervention group), or routine seizure clinic follow-up visits (control group). Both groups completed questionnaires at time of enrollment, and then at approximately 3 months (follow-up 1) and 6 months (follow-up 2) after discharge, assessing for: (1) primary outcomes that include a measure of psychosocial functioning, as well as interval difference in seizure frequency/intensity; and (2) secondary outcomes that include interval seizure-related emergency room visits or hospitalizations, development of new and medically unexplained symptoms, and results of an internal measure of knowledge and perception outcomes.

RESULTS

The majority (73%) of patients from the intervention group commenced on therapy sessions within 4 weeks after learning of the diagnosis. Although we did not observe significant group difference in seizure frequency/intensity, patients from the intervention group showed significant improvement on the Work and Social Adjustment Scale (WSAS) scores at both follow-up 1 (p = 0.013) and follow-up 2 (p = 0.038) after discharge from the EMU. In addition, we observed a trend toward lesser likelihood for seizure-related emergency room visits or hospitalizations for the intervention group (p = 0.184), as well as meaningful insights from an internal measure of intervention outcomes.

SIGNIFICANCE

These findings suggest that our cost/resource effective, brief group psychoeducational program, when administered early and by the same team who confirmed and communicated the diagnosis of PNES, may contribute to significant functional improvement among participating patients.

A feasibility study of a brief psycho-educational intervention for psychogenic nonepileptic seizures

PURPOSE

We have previously reported that one in six patients stops experiencing psychogenic nonepileptic seizures (PNES) following our communication protocol. This prospective multicentre study describes a psycho-educational intervention for PNES building on the initial communication of the diagnosis and examines the feasibility of its delivery by healthcare professionals with minimal experience in psychological therapies.

METHOD

Three healthcare professionals with minimal training in psychological therapies took part in a one-day training course. 20 participants attended for a four-session manualised psycho-educational intervention delivered at three different clinical neuroscience centres. Participants completed self-report measures prior to the intervention at baseline (n=29) and seven months after diagnosis (n=13) measures included seizure frequency, health related quality of life, healthcare utilisation, activity levels, symptom attributions and levels of functioning. Therapy sessions were audiorecorded and manual adherence assessed.

RESULTS

Of 29 patients enrolled into the study, 20 started and 13 completed the intervention and provided follow-up information. At follow-up, 4/13 of patients had achieved complete seizure control and a further 3/13 reported a greater than 50% improvement in seizure frequency. After training, epilepsy nurses and assistant psychologists demonstrated sufficient adherence to the manualised psycho-educational intervention in 80% of sessions.

CONCLUSION

The delivery of our brief manualised psycho-educational intervention for PNES by health professionals with minimal training in psychological treatment was feasible. The intervention was associated with higher rates of PNES cessation than those observed in our previous studies describing the short-term outcome of the communication of the diagnosis alone. An RCT of the intervention is justified but a significant proportion of drop-outs will have to be anticipated.

Psychological trauma in patients with psychogenic nonepileptic seizures: trauma characteristics and those who develop PTSD

OBJECTIVES

The first objective of this study was to examine and describe the demographic, psychiatric, and trauma characteristics of our sample with PNESs as a whole. Subsequently, a comparison between traumatized and nontraumatized patients with PNESs was performed with regard to descriptive and trauma characteristics and general psychopathology symptoms. Lastly, we analyzed the predictive value in distinguishing patients with "likely" vs. "not likely" PTSD utilizing a model derived from our patients' psychometric test results.

METHODS

We collected and tallied demographic and psychiatric information and trauma characteristics on 61 patients with PNESs who had confirmed or denied having experienced trauma in their lifetime. We then studied this group with the Trauma Symptom Inventory-2 (TSI-2) and the Minnesota Multiphasic Personality Inventory-2RF (MMPI-2RF). Traumatized patients were subsequently classified as "PTSD likely" and "PTSD not likely" based on TSI-2 criteria and compared on demographic, psychiatric, and trauma characteristics and MMPI-2RF scores.

RESULTS

Our study revealed that 45 out of 61 (73.8%) patients reported experiencing at least one traumatic event in their lifetime. Approximately 40% reported physical or sexual abuse followed in percentage size by loss of a significant other, psychological abuse, witnessing the abuse of others, and medical trauma. Traumatized vs. nontraumatized and "PTSD likely" and "PTSD not likely" patients differed significantly on several clinical variables, as well as MMPI-2RF scores. Scores from TSI-2 produced a model that accurately predicted "no PTSD" in 21/26 (80.77%) subjects who denied a history of PTSD and "PTSD" in 5/6 subjects (83.33%) who endorsed a history of PTSD.

CONCLUSION

This study showed that overall exposure to psychological trauma is much more prevalent in patients with PNESs than in the general population with an inordinately high exposure to sexual and physical abuse as well as a variety of other types of abuse. Psychopathology was identified in the group with PNESs as a whole with discrete distinctions in clinical symptoms and characteristics of the traumatized as well as the "PTSD likely" subgroups. These findings contribute useful information in understanding intragroup differences in what is increasingly appearing to be a heterogeneous psychiatric condition composed of distinguishable subgroups.