Psychiatric comorbid disorders and impulsivity in patients with drug-resistant temporal and extra-temporal focal epilepsies.

PURPOSE: To analyze patients with drug-resistant focal epilepsy from temporal (TLE) and extra-temporal origin (ETE) and to compare the prevalence of psychiatric comorbid disorders and impulsivity between them and a control group. METHODS: Consecutively studied patients with TLE and ETE confirmed with Video-EEG were included. Standardized psychiatric assessment was conducted using the Structured Clinical Interview for Axis I and II diagnosis of DSM-IV (SCID I-II), the Barrat-11 scale for impulsivity, and Beck inventory for depression. Parametric and nonparametric tests were performed. RESULTS: Seventy-three patients with temporal lobe epilepsy (TLE), 21 extra-temporal epilepsy (ETE) and 58 healthy control subjects were included. Both groups of patients showed a high frequency of Axis I comorbid psychiatric disorders: Depression was the most frequent disorder followed by Anxiety Disorders. Furthermore, Axis II (Personality disorders) were also diagnosed, similarly in both groups of patients (p > 0.05). In addition, both TLE and ETE groups presented higher impulsivity scores compared with the control group (p < 0.01). ETE showed a tendency to a higher impulsivity in the motor factor (p = 0.05). Among patients with TLE, a left laterality of the epileptogenic zone, and the presence of comorbid psychiatric disorders (depression), were found as independent factors associated with higher impulsivity (p < 0.05). CONCLUSION: Comorbid depression associated with higher impulsivity are important issues to consider in behavioral and clinical evaluation of patients with drug-resistant focal epilepsies, with the aim to set up a prompt treatment.

Sexual Abuse, Post-Traumatic Stress Disorder and Psychopathological Characteristics in Women with Functional/Dissociative Seizures.

BACKGROUND: Functional/dissociative seizures (FDS), also known as psychogenic non-epileptic seizures (PNES), are sudden, transient, and involuntary events that include motor, sensory, cognitive or autonomic function alterations. In this work we analyzed the psychopathological characteristics of a subgroup of women who suffer from FDS with the aim to analyze the role of psychological trauma, with special emphasis on trauma due to sexual abuse (SA). METHODS: Forty-five women diagnosed with FDS were included in the study (age range 18 to 64 years, mean = 34.7, standard deviation (SD) = 13.1). Clinical and psychopathological characteristics were reviewed. All patients have completed the clinical interviews, the Structured Clinical Interview for DSM-IV Axis I Disorders (SCID-I), the Structured Clinical Interview for DSM-IV Axis II Personality Disorders (SCID II) and the Global Assessment of Functioning (GAF) according to a special protocol for mental health assessment. Also, the history of sexual abuse trauma, the history of other non-sexual traumas and absence of history of trauma were reviewed. RESULTS: Eighty percent of the cases reported a history of trauma, and 40% reported a history of SA. Patients with a history of SA presented a significantly lower average age of seizure onset than patients with a history of other non-sexual traumas (p = 0.021). Significant associations were found between SA and post-traumatic stress disorder (PTSD) (p = 0.031), and SA and history of suicide attempts (p = 0.037). CONCLUSIONS: SA carries serious implications for the mental health of women suffering from FDS. Mental health professionals must consider the history of this type of trauma to provide the necessary care for this patient population.

Cultural adaptation and psychometric properties of the Patient-weighted Quality of Life in Epilepsy 31 Inventory (QOLIE-31P) in Argentina.

OBJECTIVE: This study presents the cultural and linguistic adaptation and psychometric properties of the Argentine version of the Quality of Life in Epilepsy Inventory (QOLIE-31P) scale. METHODS: An instrumental study was carried out. A version of QOLIE-31P translated into Spanish was provided by the original authors. To assess the content validity, evaluation of expert judges was requested, and the degree of agreement was determined. The instrument was administered to 212 people with epilepsy (PWE) of Argentina, together with the BDI-II, B-IPQ and a sociodemographic questionnaire. A descriptive analysis of the sample was carried out. Discriminative capacity of the items was performed. Cronbach's alpha was calculated to assess reliability. To study the dimensional structure of the instrument, a confirmatory factorial analysis (CFA) was performed. Convergent and discriminant validity was tested through mean difference tests, linear correlation, and regression analysis. RESULTS: Aiken's V coefficients ranged between .90 and 1 (acceptable), which allows to state that a conceptually and linguistically equivalent version of the QOLIE-31P was reached. Cronbach's Alpha of 0.94 was obtained for the Total Scale (optimal). As a result of CFA, 7 factors were obtained, being the dimensional structure similar to the original version. Also, unemployed PWE reported significant lower scores than employed PWE. Finally, QOLIE-31P scores negatively correlated with depression symptom severity and negative illness perception. CONCLUSION: The Argentine version of the QOLIE-31P is a valid and reliable instrument, presenting good psychometric properties, such as high internal consistency and a dimensional structure similar to that of the original version.

Long-term outcome in a sample of underprivileged patients with psychogenic nonepileptic seizures (PNES) living in Argentina.

OBJECTIVE: The objective of the present study was to perform a long-term follow-up of economically disadvantaged Latin American patients diagnosed as having psychogenic nonepileptic seizures (PNES) and contribute to the field's understanding of outcome in this population. BACKGROUND: A handful of studies have examined outcome of patients once the diagnosis of PNES has been communicated. However, the vast majority of these have been conducted in the first world countries with samples that were predominantly Caucasian. There is limited knowledge about outcome in economically disadvantaged Latin American patients diagnosed as having PNES. METHODS: This is a study of 23 patients (20 women, 3 men) with PNES in which demographic data (age, education, nationality, presence of psychological trauma, age of onset) were retrospectively retrieved from medical files. Follow-up was done through a telephonic questionnaire in which investigators collected clinical information (seizure characteristics at follow-up, and treatments employed) and changes in demographic data. RESULTS: Patients from this Argentinian PNES sample demonstrated having many similar demographic and clinical characteristics to samples from US and European studies. Long-term follow-up revealed, however, decreased seizure frequency and intensity as well as a substantial improvement in occupational status. A majority had engaged in psychotherapy as well as alternative and complementary approaches. A majority had also developed what are suspected to be other functional symptoms. CONCLUSIONS: Argentinian patients from economically disadvantaged backgrounds, diagnosed as having PNES reported improvements in seizure frequency and occupational status during long-term follow-up. Future studies will need to focus on what (e.g., communication of diagnosis, psychotherapy, alternative treatments) may have contributed to these changes.

The origins and professionalization of cognitive psychotherapy in Argentina.

The growing popularity of cognitive-behavioral therapy (CBT) has helped reshape the mental health scene in the city of Buenos Aires, historically the stronghold of psychoanalysis. In the early 1980s, CBT was infrequently used and sometimes overtly resisted in the field of mental health. Almost 3 decades later, the impact of CBT has increased dramatically in Argentina, not only in independent practice but also in the health system and in everyday life. This article aims to describe the process by which Argentine psychotherapists first adopted this new theoretical framework.

[Mindfulness-Based Cognitive Therapy (MBCT) and the 'Third Wave' of Cognitive-Bahavioral Therapies (CBT)]. / Terapia Cognitiva basada en Atención Plena (mindfulness) y la 'tercera ola' en Terapias Cognitivo-Conductuales.

The paper presents the reasons that led to the incorporation of mindfulness as part of a cognitive therapy approach to the prevention of relapse of recurrent depressive disorders. It describes the context in which models focused on the contents of cognition gave way to models focused on cognitive processes. We highlight the problems encountered by the standard cognitive model when trying to account for the cognitive vulnerability of individuals who, having experienced a depressive episode, are in remission. We briefly describe the theoretical foundations of Mindfulness-Based Cognitive Therapy and its therapeutic approach.

[MINDFULNESS-BASED COGNITIVE THERAPY (MBCT) AND THE "THIRD WAVE" OF COGNITIVE-BEHAVIORAL THERAPIES (CBT)]. / Terapia Cognitiva basada en Atención Plena (mindfulness) y la <> en Terapias Cognitivo-Conductuales.

The paper presents the reasons that led to the incorporation of mindfulness as part of a cognitive therapy approach to the prevention of relapse of recurrent depressive disorders. It describes the context in which models focused on the contents of cognition gave way to models focused on cognitive processes. We highlight the problems encountered by the standard cognitive model when trying to account for the cognitive vulnerability of individuals who, having experienced a depressive episode, are in remission. We briefly describe the theoretical foundations of Mindfulness-Based Cognitive Therapy and its therapeutic approach.

[Psychogenic non-epileptic seizures. Differential diagnosis with epilepsy, clinical presentation and therapeutic approach]. / Crisis no epilépticas de origen psicógeno. Diagnóstico diferencial con la epilepsia, presentación clínica y abordaje terapéutico.

The current term psychogenic non-epileptic seizures were coined by contemporary neurologists and epileptologists, since the implementation of Video electroencephalogram, considered today the gold standard diagnostic tool. Patients with psychogenic non-epileptic seizures comprise a heterogeneous group from the psychiatric point of view. The diagnosis that describes the psychogenic non-epileptic seizures is "conversion disorder", often associated with dissociative disorder. These disorders are frequently co-morbid with depression, anxiety and posttraumatic stress disorder. Furthermore, usually coexist with personality disorders, especially borderline personality disorder, although dependence personality disorder has also been described. A history of trauma is very important in the pathogenesis and development of psychogenic non-epileptic seizures. The symptoms "core" of the psychogenic non-epileptic seizures (conversion and dissociation), some co-morbidities and personality disorders are treated with psychotherapy, while psychotropic drugs are used for co-morbidities such as depression and posttraumatic stress disorder.

Perceived stress, resilience, and stress coping in patients with drug resistant epilepsy and functional dissociative seizures.

PURPOSE: Depression and anxiety are psychiatric disorders related to chronic stress, commonly found in patients with drug-resistant epilepsy (DRE) and functional dissociative seizures (FDS). The present study compares the levels of perceived stress, resilience, and the styles of stress coping among patients with DRE (n=60), FDS (n=28), and controls (n=31). METHODS: We performed a cross-sectional study. All patients underwent Video Electroencephalography to confirm the diagnosis and completed the psychiatric assessment (SCID I and II of DSM IV) supported by several instruments validated in Spanish. RESULTS: FDS scored higher in perceived stress (p = 0.004) with lower levels of resilience compared to controls (p = 0.01). Stress coping subscales show higher scores in negative self-focus and hostility in patients with FDS compared to controls (p=0.003). Similarly, DRE patients scored higher in perceived stress (p = 0.001), and presented lower levels of resilience (p = 0.004) with higher levels of hostility compared to controls (p=0.02). However, no significant differences were found between FDS and DRE on stress coping variables. Anxiety scores and depression rates were higher in the FDS group compared to DRE (p=0.008) and higher in DRE compared to controls (p<0.05). A positive correlation between depression and perceived stress was found (r = 0.6, p=0.0001). CONCLUSIONS: Our results delineate a more detailed picture of the psychological profile of this population, emphasizing the importance of stress factors in patients with FDS and DRE. Combined intervention strategies which enhance stress coping may be appropriate to direct treatment and psychotherapy.

Using evidence-based psychotherapy to tailor treatment for patients with functional neurological disorders.

Functional neurological disorder (FND) frequently presents with comorbid psychopathology (e.g., anxiety, depressive, post-traumatic stress disorders (PTSD), somatic symptom and pain syndromes, and dissociative and personality disorders). It can become chronic and lead to unemployment and disability for many patients. Psychosocial factors play an important role in the onset and perpetuation of symptoms. Consequently, psychotherapy is recommended for the treatment of FND in general, and especially for the single symptom-based subtype of functional seizures (FS). Some of the psychotherapy approaches that have been utilized for FND include cognitive-behavioral therapy (CBT), third wave approaches, and psychodynamic psychotherapies as well as group therapeutic and psychoeducational interventions. For patients with FS and PTSD, prolonged exposure therapy, a CBT-based treatment has been implemented. The purpose of this manuscript is to describe and analyze specific elements (e.g., theoretical foundations, tools, targets, definitions of success) of the main psychotherapeutic approaches used in patients with FND. Our premise is that these modalities will overlap considerably in some respects. We will conclude by discussing how discrete differences may render them more suitable for subgroups of patients with FND or for patients at different timepoints of their recovery process.

Patients' Explanatory Models about drug-resistant epilepsy in Argentina. A thematic analysis.

OBJECTIVE: The aim of this study is to explore explanatory models (EM) about epilepsy in patients with drug-resistant epilepsy (DRE) in Buenos Aires, Argentina. DESIGN: A qualitative approach gathered data through semi-structured interviews, oriented to gain an in-depth and contextual understanding of EM about epilepsy of patients with DRE. Data collection and analysis were followed by an inductive and interpretive approach informed by the principles of thematic analysis. RESULTS: 75 patients from two public hospitals participated. Emerging codes were grouped into three categories: Biomedical EM, Psychosocial EM, and Traditional EM. Also, factors that trigger or increase the frequency of seizures were reported. CONCLUSIONS: Patients' EM regarding epilepsy are complex, as biological, psychological, and supernatural aspects intertwine. EM represent a method of understanding the way people explain, recognize, and act in relation to a medical condition. Since patients' beliefs regarding their illness are related to mental disorders, and quality of life, EM could shed light on the real impact of illness in the life of people, and, in turn, guide those intervention strategies to the patients' subjectivity, in order to improve the treatment compliance, reduce distress, and improve health-related quality of life, among other aspects.

Updated Review on the Diagnosis and Primary Management of Psychogenic Nonepileptic Seizure Disorders.

Psychogenic nonepileptic seizures (PNES) are paroxystic and episodic events associated with motor, sensory, mental or autonomic manifestations, which resemble epileptic seizures (ES), but are not caused by epileptogenic activity. PNES affect between 20% and 30% of patients attending at epilepsy centers and constitute a serious mental health problem. PNES are often underdiagnosed, undertreated and mistaken with epilepsy. PNES are diagnosed after medical causes (epilepsy, syncope, stroke, etc.) have been ruled out, and psychological mechanisms are involved in their genesis and perpetuation. For psychiatry, there is not a single definition for PNES; the DSM-IV and ICD-10/11 describe the conversion and dissociative disorders, and the DSM-5 describes the functional neurological disorders. However, patients with PNES also have a high frequency of other comorbidities like depression, particularly trauma and post-traumatic stress disorder. It has been postulated that PNES are essentially dissociations that operate as a defensive psychological mechanism that use the mind as a defense to deal with traumas. With the advent of VEEG in the 90s, the recognition of PNES has significantly increased, and several psychological treatments have been developed. In this manuscript, we carried out a state-of-the-art review, with the aim to provide a critical approach to the extensive literature about PNES, focusing on diagnostic aspects, the primary management, and the available treatments that have been shown to be effective for the improvement of PNES.

Psychiatric disorders, depression and quality of life in patients with psychogenic non-epileptic seizures and drug resistant epilepsy living in Argentina.

OBJECTIVES: Psychiatric disorders are frequently found in both patients with PNES and DRE, making the differential diagnosis even more complex. The aim of this study was to analyze and compare psychiatric aspects and the quality of life in patients with psychogenic non-epileptic seizures (PNES) and drug resistant epilepsy (DRE). METHODS: Patients admitted to video-electroencephalograpy (VEEG) unit with confirmed PNES and DRE were included. Demographical characteristics, psychiatric diagnosis according to SCID I and II of DSM IV, pharmacological treatment, general functioning measured with GAF (Global assessment of functionality), quality of life (QoL) using QlesQSF (Quality of Life Enjoyment and Satisfaction Questionnaire Short Form) and depression severity using BDI II (Beck depression inventory), were compared between the groups. Non-parametric tests, chi square test, and logistic regression were used for statistical analysis. RESULTS: 148 patients consecutively admitted to VEEG were included (DRE n = 97; PNES n = 51). Somatization disorder (RR: 13.02, 95% CI: 1.23-137.39, p = 0.03) and a history of trauma (RR: 8.66, 95% CI: 3.21-23.31, p = 0.001) were associated with PNES. The QlesQ score and the GAF score were lower with a higher prevalence of suicide attempts in the PNES group (p < 0.01). A negative correlation was observed between the severity of depression and the quality of life (DRE r = - 0.28, p = 0.013; PNES r = - 0.59, p = 0.001). CONCLUSIONS: Higher psychiatric comorbidity with poorer QoL were found in PNES patients compared to DRE. However, depression comorbidity negatively affected the QoL in both groups. Future studies based on illness perception will be orientated to complete this analysis.

Reducing Allostatic Load in Depression and Anxiety Disorders: Physical Activity and Yoga Practice as Add-On Therapies.

The allostatic load (AL) index constitutes a useful tool to objectively assess the biological aspects of chronic stress in clinical practice. AL index has been positively correlated with cumulative chronic stress (physical and psychosocial stressors) and with a high risk to develop pathological conditions (e.g., metabolic syndrome, cardiovascular pathology, inflammatory disorders) and the so-called stress-related psychiatric disorders, including anxiety and depressive disorders. Chronic stress has negative effects on brain neuroplasticity, especially on hippocampal neurogenesis and these effects may be reversed by antidepressant treatments. Several evidences indicate that non-pharmacological interventions based on physical activity and yoga practice may add synergizing benefits to classical treatments (antidepressant and benzodiazepines) for depression and anxiety, reducing the negative effects of chronic stress. The aim of this review is to provide a general overview of current knowledge on AL and chronic stress in relation to depression and anxiety, physical activity and yoga practice.

Report on a psychoeducational intervention for psychogenic non-epileptic seizures in Argentina.

PURPOSE: To examine the effects of a three-session psychoeducational intervention on patients diagnosed with psychogenic non-epileptic seizures (PNES) in an Argentinian public hospital. It was hypothesized that patients would experience improvements in their understanding of PNES, illness perception and affective scores, but might not necessarily experience a significant change in post-traumatic and dissociative symptoms and in seizure frequency. METHODS: This study included 12 patients (10 women, 2 men) who were invited to participate in a psychoeducational group after receiving a V-EEG confirmed diagnosis of PNES. The group consisted of 3 sessions lasting 2 h each. Pre and post measures included Psychoeducational Intervention Questionnaire, State-Trait Anxiety Inventory, Beck Depression Inventory-II, Brief Illness Perception Questionnaire, Posttraumatic Stress Disorder Diagnostic Scale 5, Dissociative Experiences Scale (DES-M). RESULTS: This psychoeducational intervention produced results that were similar to interventions reported in US and European studies with regard to changes on psychological measures. Moreover, many patients also reported (on the final day of the intervention) a decrease in seizure frequency. All patients reported that participating in the intervention was a positive experience. Also, all but one patient referred that the participation in the group would have a positive impact on their quality of life. CONCLUSIONS: Psychoeducational interventions appear to have had positive results in Argentinian patients with PNES. This is initial step in the design of empirically based psychoeducational/supportive initiatives for patients in South America.

[Clinical guidelines in mental health: situation in Argentina]. / Guías clínicas en salud mental: la situación en Argentina.

The permanent update of mental health professionals has become an actual requirement. Nowadays, there is an important concern to offer to the patient's problems the best therapeutics that respond to their specific needs. The well known Clinical Guides are tools to address that objective. In the United Kingdom, USA, Canada, Germany, the Netherlands, France and some Latin American countries different organisms have been created with the objective to develop clinical guidelines. In Argentina, the situation is precarious. In Buenos Aires City, there are few efforts in such direction. An heterogeneous group of factors (social, economic, corporative, theoretical-academic or curricular and ideological) seem to difficult the development of a project of these characteristics, adapted to this population.

Estrategias de afrontamiento en adultos con crisis funcionales disociativas: Una revisión sistemática / Coping strategies in adults with functional dissociative seizures: A systematic review

Resumen Introducción: las crisis funcionales disociativas (CFD) son episodios que se asemejan a las crisis epilépticas, pero son causadas por diversos factores biopsicosociales. La forma en la que estos pacientes enfrentan los desafíos de su padecimiento se ha considerado un importante factor mantenedor. El objetivo de esta revisión sistemática es identificar las estrategias de afrontamiento utilizadas por pacientes adultos con CFD, y los instrumentos usados para evaluarlas. Método: la revisión se realizó siguiendo la guía PRISMA. Se hizo una búsqueda en las bases de datos Pubmed, Cochrane Library, Scielo, Science Direct y Lilacs. Resultados: once artículos cumplieron con los criterios de inclusión y se integraron en una síntesis narrativa. Los pacientes con CFD utilizan más estrategias de evitación y centradas en la emoción que la población general. Su uso excesivo se ha relacionado a una mayor psicopatología, una peor calidad de vida y mayor malestar frente al estrés. Por otro lado, la diversidad de instrumentos de evaluación del afrontamiento refleja la heterogeneidad del campo. Conclusiones: más investigaciones son necesarias para comprender las estrategias de afrontamiento de los pacientes con CFD y ofrecer un tratamiento más personalizado y efectivo.

Abstract Introduction: Functional dissociative seizures (FDS) are episodes that resemble epileptic seizures, but are caused by different biopsychosocial factors. The way in which these patients cope with the challenges of their condition has been considered an important maintaining factor. The aim of this systematic review is to identify the coping strategies used by adult patients with FDS, and the measures used to assess them. Methods: The review was conducted following the PRISMA guidelines. A search was conducted in Pubmed, Cochrane Library, Scielo, Science Direct and Lilacs databases. Results: Eleven articles met the inclusion criteria and were integrated into a narrative synthesis. FDS patients use more avoidance and emotion-focused strategies than the general population. Their excessive use has been related to greater psychopathology, poorer quality of life and greater distress in the face of stress. On the other hand, the diversity of coping assessment instruments reflects the heterogeneity of the field. Conclusions: More research is needed to understand the coping strategies of FDS patients and to offer more personalized and effective treatment.

A life with seizures: Argentine patients' perspectives about the impact of drug-resistant epilepsy on their lives.

PURPOSE: To understand the experience of drug-resistant epilepsy in patients from Argentina, a developing nation. METHOD: A qualitative approach using semi-structured interviews was used to gain an in-depth and contextual understanding of the perspectives of 20 patients with DRE. Data collection and analysis were followed by an inductive and interpretive approach informed by the principles of thematic analysis. RESULTS: Six main themes emerged: 1) Characteristics of the illness, including seizure features -unpredictability, presence of auras, physical and cognitive consequences- and how patients relate with the use of antiepileptic drugs; 2) interactions with health system, regarding the features of the Argentine's health system, and patient's health-seeking behaviours; 3) beliefs about the illness, including psychosocial, biological and folk explanatory models; 4) beliefs about how other people perceive them, which included prejudice, responsibility and overprotection; 5) self-perception, and 6) impact of the illness on their activities. CONCLUSIONS: This information might be useful to help in the development of a conceptual model of the impact epilepsy on patients' lives. Many of the topics mentioned as relevant in Argentina coincide with those highlighted in studies that were carried out in first-world countries. However, additional topics were also reported including the role of traditional healing in health-seeking behaviour and explanatory models of illness. It is important to understand these perspectives to develop appropriate psychosocial interventions for this specific population.

Calidad de vida en pacientes con epilepsia y crisis no epilépticas psicógenas: una revisión sistemática / Quality of life in patients with epilepsy and psychogenic nonepileptic seizures: a systematic review

Resumen Se han revisado artículos que estudiaron la calidad de vida en las personas con crisis no epilépticas psicógenas (CNEP) y crisis epilépticas. Se siguió la guía PRISMA y, previo a la búsqueda, se realizó un protocolo publicado en PROSPERO. Se incluyeron estudios aleatorizados y no aleatorizados, de tipo cuantitativo o mixtos, de corte transversal o longitudinal, escritos en lengua inglesa o española publicados hasta el año 2020, y cuyos participantes fueran mayores de 16 años. Luego de filtrar los resultados según los criterios de selección, se incluyeron 11 artículos y una tesis doctoral cuyos años de publicación datan de 1998 a 2020. En su mayoría, se informaba que las personas con CNEP tenían menor calidad de vida, asociadas a presencia de psicopatología, así como también a la toma de medicación antiepiléptica, factores sociodemográficos y relacionados con las crisis (frecuencia, severidad y duración de enfermedad), funcionamiento familiar, trauma y somatización.

Abstract Psychogenic non epileptic seizures (PNES) are disruptive changes in behaviour, thought, or emotion that resemble an epileptic seizure, but without paroxysmal neuronal discharge detectable by electroencephalography (EEG), and are not caused by another medical condition. On the other hand, epileptic seizures (ES) are defined as clinical events that reflect the presence of hypersynchronous discharges of neurons located in the cerebral cortex, which have the particularity of starting and ending abruptly. The diagnosis of epilepsy is made when an epileptic seizure was experienced and there is a risk of having another. The objective of this paper is to present the results of a systematic review of articles that have studied quality of life in people with PNES and ES. This review has been performed following the PRISMA guide (Preferred Reporting Items for Systematic reviews and Meta-Analyses). Prior to the beginning of the search, a protocol was carried out and it is published for consultation in the International prospective register of systematic reviews (PROSPERO). The review includes randomized and non-randomized, quantitative or mixed, cross-sectional or longitudinal studies, published in English or Spanish until 2020. In addition, participants had to be over 16 years old. PNES diagnosis must have been confirmed by video-electroencephalography (VEEG) or a similar procedure-which is considered the gold standard for the diagnosis of PNES.

What patients think about psychogenic nonepileptic seizures in Buenos Aires, Argentina: A qualitative approach.

PURPOSE: To analyse the methods of reasoning with regard to patients' experiences of living with psychogenic nonepileptic seizures (PNES) in Buenos Aires, Argentina. METHOD: A qualitative approach using semi-structured interviews was used to gain an in-depth and contextual understanding of the perspectives of five patients with PNES. Data collection and analysis were followed by an inductive and interpretive approach informed by the principles of thematic analysis. RESULTS: Explanatory models and prototypes were identified from the patients' narratives. Four patients related their suffering regarding psychosocial causes -family conflicts, sexual harassment, and life changes, among others-. Hereditary and organic hypotheses appeared to be unspecific. Folk explanations were common to all participants (magic, witchcraft, energetic causes). Four patients used the term epilepsy as an illness prototype, focusing on seizures and the use of antiepileptic drugs. Three of them also compared their illness to other people's "attacks" (heart attacks, panic attacks, nervous breakdown). Only one of them referred to someone who was suspected of having epilepsy. CONCLUSION: Patients' psychosocial explanatory models are different from the results of previous studies because these studies indicate that most patients support somatic explanations. Patients also use folk explanations related to traditional medicine, which highlights the interpersonal aspects of the disease. Doctor-patient communication is essential for a correct understanding of PNES, resulting in better outcomes. It could also help to reduce the cultural distance between professionals and patients, leading to narrowing inequalities present in multicultural healthcare services.