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2.
Epilepsy Behav ; 141: 109132, 2023 04.
Article in English | MEDLINE | ID: mdl-36807988

ABSTRACT

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.


Subject(s)
Epilepsy , Quality of Life , Humans , Psychometrics/methods , Reproducibility of Results , Argentina , Surveys and Questionnaires
3.
Eur J Neurosci ; 55(7): 1756-1773, 2022 04.
Article in English | MEDLINE | ID: mdl-35342999

ABSTRACT

Alcohol intake and exposure to noise are common activities of human adolescents performed in entertainment contexts worldwide that can induce behavioural disturbances. Therefore, the aim of the present work was to investigate in an experimental model of adolescent animals whether noise exposure and intermittent ethanol intake, when present individually or sequentially, might be able to modify different behaviours. Adolescent Wistar rats of both sexes were subjected to voluntary intermittent ethanol intake for 1 week followed by exposure to noise for 2 h and tested in a battery of behavioural tasks. Data show that males exposed to noise experienced a deficit in associative memory (AM), increase in anxiety-like behaviours (ALB) and altered reaction to novelty (RN) when compared with sham animals, whereas females also showed an increase in risk assessment behaviours (RABs) and a decrease in exploratory activity (EA). In contrast, ethanol intake induced an increase in RAB and RN in males and females, whereas females also showed a deficit in AM and EA as well as an increase in ALB. When ethanol was ingested before noise exposure, most parameters were counteracted both in male and females, but differed among sexes. In consequence, it could be hypothesized that an environmental acute stressor like noise might trigger a behavioural counteracting induced by a previous repeated exposure to a chemical agent such as ethanol, leading to a compensation of a non-adaptive behaviour and reaching a better adjustment to the environment.


Subject(s)
Alcohol Drinking , Ethanol , Alcohol Drinking/adverse effects , Animals , Anxiety/chemically induced , Ethanol/toxicity , Female , Male , Rats , Rats, Wistar
4.
Seizure ; 92: 174-181, 2021 Nov.
Article in English | MEDLINE | ID: mdl-34536854

ABSTRACT

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.


Subject(s)
Drug Resistant Epilepsy , Epilepsy , Mental Disorders , Argentina/epidemiology , Depression/epidemiology , Drug Resistant Epilepsy/epidemiology , Epilepsy/drug therapy , Epilepsy/epidemiology , Humans , Quality of Life , Seizures/epidemiology
5.
Seizure ; 91: 409-416, 2021 Oct.
Article in English | MEDLINE | ID: mdl-34303914

ABSTRACT

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.


Subject(s)
Epilepsy , Pharmaceutical Preparations , Argentina/epidemiology , Epilepsy/drug therapy , Epilepsy/epidemiology , Humans , Qualitative Research , Quality of Life
6.
Neuropsychiatr Dis Treat ; 17: 1825-1838, 2021.
Article in English | MEDLINE | ID: mdl-34113112

ABSTRACT

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.

7.
Epilepsy Behav ; 117: 107835, 2021 04.
Article in English | MEDLINE | ID: mdl-33611098

ABSTRACT

PURPOSE: To investigate the opinions of physicians on the use of complementary and alternative medicine (CAM) in patients with epilepsy (PWE) worldwide. METHODS: Online survey addressed to neurologists and psychiatrists from different countries. RESULTS: Totally, 1112 physicians from 25 countries (different world region: Europe, North America, South America, Middle-East, Africa, Former Soviet Union Republics) participated; 804 (72.3%) believed that CAM might be helpful in PWE. The most commonly endorsed CAM included meditation (41%) and yoga (39%). Female sex, psychiatry specialization, and working in North and South America were associated with the belief that CAM is helpful in PWE. Two-hundred and forty five out of 1098 participants (22.3%) used/prescribed CAM to PWE; among them, 174 (71%) people perceived CAM to be less effective and 114 (46.5%) people found CAM to be safer than conventional antiseizure medications (ASMs). The most common reasons to prescribe CAM for PWE were: to satisfy the patient (49.9%), dissatisfaction with the efficacy (35.6%), and dissatisfaction with the adverse effects (31.2%) of conventional therapies. CONCLUSION: Although the evidence supporting the use of CAM for the treatment of epilepsy is extremely sparse, most physicians worldwide believe that it could be integrated with the use of conventional ASMs, at least in some patients. High-quality controlled trials are warranted to provide robust evidence on the usefulness of CAM options in PWE.


Subject(s)
Complementary Therapies , Epilepsy , Physicians , Africa , Epilepsy/therapy , Europe , Female , Humans , Middle East , North America , South America , Surveys and Questionnaires
8.
Article in English | MEDLINE | ID: mdl-32950266

ABSTRACT

BACKGROUND: Psychogenic nonepileptic seizures (PNESs) are disruptive changes in behavior without ictal correlate of epileptic activity and high prevalence of psychiatric morbidity. Differential diagnosis is difficult particularly with temporal lobe epilepsy (TLE), which is also associated with high prevalence of psychiatric comorbidity. Although video electroencephalography is the gold standard for differential diagnosis, clinical semiology analysis may help the clinician in general medical practice. OBJECTIVE: In this study, the differential semiology, based on video electroencephalography, between PNESs and TLE seizures was analyzed. METHODS: The video electroencephalography of patients with diagnosis of PNES and TLE were reviewed and compared between groups. Clinical semiology of all episodes recorded by video electroencephalography in each patient was analyzed and classified in accordance with the presence of behavioral arrest, motor hyperkinetic activity, impaired awareness, aura, and automatisms. Chi square test and binary logistic regression were determined. RESULTS: Thirty-two patients with PNES (32 ± 11 y) and 34 with TLE (32 ± 12 y) were included. Female patients were predominant in the PNES group (P < 0.05). Mean time duration of episodes was 6.8 ± 10 minutes in PNES and 1.6 ± 0.8 minutes in TLE (P < 0.05). Impaired awareness (odds ratio = 24.4; 95% confidence interval = 3.79 -157.3, P < 0.01), automatisms (odds ratio = 13.9; 95% confidence interval = 2.1- 90.5, P < 0.01), and shorter duration of the events (odds ratio = 2.261, 95% confidence interval = 1.149 - 4.449, P = 0.018) were found as independent factors for detecting TLE seizures comparing PNESs. CONCLUSION: Clinical semiology analysis may orientate the differential diagnosis in general medical practice, between PNESs and TLE seizures. Further studies comparing PNES semiology with other subtypes of epilepsies may complete these preliminary findings.


Subject(s)
Epilepsy, Temporal Lobe , Epilepsy , Electroencephalography , Epilepsy, Temporal Lobe/diagnosis , Female , Humans , Seizures/diagnosis , Temporal Lobe
9.
Epilepsy Behav ; 115: 107678, 2021 02.
Article in English | MEDLINE | ID: mdl-33348196

ABSTRACT

OBJECTIVES: In this international study, we aimed to investigate the opinions of physicians dealing with patients with functional seizures (FS) worldwide on working restrictions and disability benefits eligibility. METHODS: International online survey of neurologists/mental health professionals from Argentina, Venezuela, Colombia, Italy, France, Iran, Iraq, United Arab Emirates (UAE), Qatar, Saudi Arabia, Georgia, and Russia. RESULTS: Six hundred and twenty-seven physicians from 12 countries participated in the study. Working as a neurologist was a predictor to think that patients with FS should not be counseled to avoid performing all jobs or professions as long as they have active disease (OR: 0.46; 95% CI: 0.30 to 0.68; p < 0.001). Having managed more than 200 patients was associated with the opinion that patients should not be counseled to avoid performing any type of work (OR: 2.17; 95% CI: 1.02 to 4.59; p = 0.043). Working as a psychiatrist/psychologist was associated with the idea that patients with FS should be qualified for disability benefits (OR: 1.97; 95% CI: 1.21-3.21; p = 0.006), and receive these benefits lifelong (OR: 0.43; 95% CI: 0.22-0.84; p = 0.014). CONCLUSION: Neurologists and mental health professionals have different attitudes and opinions toward working restrictions and disability benefits for patients with FS. Further studies should investigate the reasons for these differences, and propose solutions to avoid discrimination and unequal access to employment and disability benefits.


Subject(s)
Physicians , Seizures , Argentina , Attitude , Colombia , France , Humans , Iran , Italy , Qatar , Russia , Saudi Arabia , United Arab Emirates
10.
Epilepsia ; 61(8): 1595-1605, 2020 08.
Article in English | MEDLINE | ID: mdl-32652588

ABSTRACT

OBJECTIVE: Depressive disorders are common among about 50% of the patients with drug-resistant temporal lobe epilepsy (TLE). The underlying etiology remains elusive, but hypothalamus-pituitary-adrenal (HPA) axis activation due to changes in glucocorticoid receptor (GR) protein expression could play an important role. Therefore, we set out to investigate expression of the GR in the hippocampus, an important brain region for HPA axis feedback, of patients with drug-resistant TLE, with and without comorbid depression. METHODS: GR expression was studied using immunohistochemistry on hippocampal sections from well-characterized TLE patients with depression (TLE + D, n = 14) and without depression (TLE - D, n = 12) who underwent surgery for drug-resistant epilepsy, as well as on hippocampal sections from autopsy control cases (n = 9). Video-electroencephalography (EEG), magnetic resonance imaging (MRI), and psychiatric and memory assessments were performed prior to surgery. RESULTS: Abundant GR immunoreactivity was present in dentate gyrus granule cells and CA1 pyramidal cells of controls. In contrast, neuronal GR expression was lower in patients with TLE, particularly in the TLE + D group. Quantitative analysis showed a smaller GR+ area in TLE + D as compared to TLE - D patients and controls. Furthermore, the ratio between the number of GR+/NeuN+ cells was lower in patients with TLE + D as compared to TLE - D and correlated negatively with the depression severity based on psychiatric history. The expression of the GR was also lower in glial cells of TLE + D compared to TLE - D patients and correlated negatively to the severity of depression. SIGNIFICANCE: Reduced hippocampal GR expression may be involved in the etiology of depression in patients with TLE and could constitute a biological marker of depression in these patients.


Subject(s)
Depressive Disorder/metabolism , Drug Resistant Epilepsy/metabolism , Epilepsy, Temporal Lobe/metabolism , Hippocampus/metabolism , Receptors, Glucocorticoid/metabolism , Adult , Aged , CA1 Region, Hippocampal/metabolism , Case-Control Studies , Dentate Gyrus/metabolism , Depressive Disorder/complications , Drug Resistant Epilepsy/complications , Drug Resistant Epilepsy/surgery , Epilepsy, Temporal Lobe/complications , Epilepsy, Temporal Lobe/surgery , Female , Humans , Hypothalamo-Hypophyseal System , Male , Middle Aged , Neurosurgical Procedures , Pituitary-Adrenal System , Pyramidal Cells/metabolism , Young Adult
11.
Front Psychiatry ; 11: 501, 2020.
Article in English | MEDLINE | ID: mdl-32581876

ABSTRACT

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.

12.
Seizure ; 80: 270-277, 2020 Aug.
Article in English | MEDLINE | ID: mdl-32475751

ABSTRACT

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.


Subject(s)
Quality of Life , Stress Disorders, Post-Traumatic , Argentina , Dissociative Disorders , Electroencephalography , Female , Humans , Male , Seizures/diagnosis , Seizures/therapy
13.
Psicol. USP ; 31: e190159, 2020. tab
Article in Spanish | LILACS, Index Psychology - journals | ID: biblio-1135799

ABSTRACT

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.


Resumo A perspectiva do paciente se apresenta como algo importante a levar em conta para a compreensão do sofrimento e para se alcançar um tratamento eficaz. O objetivo desta pesquisa é investigar as trajetórias terapêuticas e as experiências durante a jornada terapêutica de pacientes com crise não epilética psicogênica (CNEP) de um Hospital Geral da Cidade Autônoma de Buenos Aires. Entrevistas semiestruturadas foram realizadas com dez pacientes com diagnóstico de CNEP. Para a análise dos dados, utilizou-se metodologia qualitativa baseada nos princípios da análise temática. Uma categoria central foi identificada: Itinerários terapêuticos dentro do sistema etnomédico; e três subcategorias: (1) Diagnósticos recebidos; (2) Recursos do sistema etnomédico; e (3) Avaliações dos recursos utilizados. A dificuldade de se chegar a um diagnóstico e a um tratamento que permitisse melhorar a CNEP, bem como o uso de diferentes medicamentos, foi destacada por todos os pacientes.


Abstract The patient's perspective is essential to understand their condition and to achieve an effective treatment. The objective of this paper is to investigate the therapeutic trajectories and experiences of patients with Psychogenic Non-Epileptic Crisis (PNES) under treatment in a General Hospital of the Autonomous City of Buenos Aires. Semi-structured interviews were conducted with ten patients diagnosed with PNES. For data analysis, a qualitative methodology based on thematic analysis was adopted. A central category has been identified: Therapeutic Itineraries within the Ethnomedical System, and three subcategories: (1) Diagnoses received; (2) Resources of the ethnomedical system; and (3) Evaluation of the resources used. The difficulty of finding a diagnosis, a treatment to improve PNES, and proper medicine were highlighted by all the patients.


Résumé Le point de vue du patient est présenté comme quelque chose d'important à prendre en compte afin de comprendre la maladie et d'obtenir un traitement efficace. L'objectif de cette recherche est d'analyser les trajectoires thérapeutiques et les expériences au cours du parcours thérapeutique des patients atteints de Crise Psychogénique Non Épileptique (CPNE) dans un hôpital général de la ville de Buenos Aires. Des entretiens semi-structurés ont été menés auprès de 10 patients diagnostiqués avec une CPNE. Pour l'analyse des données, une méthodologie qualitative basée sur les principes de l'analyse thématique a été utilisée. Une catégorie centrale a été identifiée : Les itinéraires thérapeutiques au sein du système ethno-médical et trois sous-catégories : (1) Diagnostics reçus ; (2) Ressources du système ethno-médical ; et (3) Évaluations des ressources utilisées. La difficulté d'arriver à un diagnostic et à un traitement permettant d'améliorer la CPNE, ainsi que l'utilisation de médicaments différents, a été soulignée par l'ensemble des patients.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Seizures/therapy , Qualitative Research
14.
Epilepsy Behav ; 98(Pt A): 36-39, 2019 09.
Article in English | MEDLINE | ID: mdl-31299530

ABSTRACT

PURPOSE: The aim of this multicenter international cross-cultural study was to compare clinical variables in a large sample of people with adult-onset psychogenic nonepileptic seizures (PNES). METHODS: In this retrospective study, we evaluated persons with documented PNES, who were older than 16 years of age at the onset, from four countries (i.e., Iran, Brazil, Venezuela, and Argentina) regarding their age, gender, PNES semiology, and possible predisposing factors. RESULTS: We included 389 patients (244 from Iran, 66 from Brazil, 51 from Venezuela, and 28 from Argentina). Age at diagnosis was 32 ±â€¯9 years (range: 17-64 years), and age at the onset of seizures was 27 ±â€¯8 years (range: 17-49 years). There was a female predominance in all countries. The demographic characteristics and factors associated with PNES were similar among the countries. However, there were significant semiological differences among the countries. CONCLUSION: This study corroborates the notion that PNES share more similarities than differences cross-culturally and across international borders. However, the background determined by cultural, ethnic, and religious differences may influence the semiology of PNES. Further cross-cultural studies involving more than two continents may advance our understanding of PNES.


Subject(s)
Seizures , Adolescent , Adult , Argentina , Brazil , Cross-Cultural Comparison , Data Collection , Electroencephalography , Ethnicity , Female , Humans , Iran , Male , Middle Aged , Retrospective Studies , Risk Factors , Seizures/diagnosis , Seizures/etiology , Seizures/psychology , Young Adult
15.
Behav Neurol ; 2019: 7396793, 2019.
Article in English | MEDLINE | ID: mdl-31191739

ABSTRACT

PURPOSE: Changes in calbindin (CB) expression have been reported in patients with temporal lobe epilepsy (TLE) with controversial implications on hippocampal functions. The aim of this study was to determine the CB immunoreactivity in hippocampal dentate gyrus of patients who underwent epilepsy surgery for drug-resistant TLE with and without comorbid depression and/or memory deficits. METHODS: Selected hippocampal samples from patients with TLE who underwent epilepsy surgery were included. Clinical and complementary assessment: EEG, video-EEG, MRI, psychiatric assessment (structured clinical interview, DSM-IV), and memory assessment (Rey auditory verbal learning test, RAVLT; Rey-Osterrieth complex figure test, RCFT), were determined before surgery. Hippocampal sections were processed using immunoperoxidase with the anti-calbindin antibody. The semiquantitative analysis of CB immunoreactivity was determined in dentate gyrus by computerized image analysis (ImageJ). RESULTS: Hippocampal sections of patients with TLE and HS (n = 24) and postmortem controls (n = 5) were included. A significant reduction of CB+ cells was found in patients with TLE (p < 0.05, Student's t-test). Among TLE cases (n = 24), depression (n = 12) and memory deficit (n = 17) were determined. Depression was associated with a higher % of cells with the CB dendritic expression (CB-sprouted cells) (F(1, 20) = 11.81, p = 0.003, hp2 = 0.37), a higher CB+ area (µm2) (F(1, 20) = 5.33, p = 0.032, hp2 = 0.21), and a higher optical density (F(1, 20) = 15.09, p = 0.001, hp2 = 0.43) (two-way ANOVA). The GAF scale (general assessment of functioning) of DSM-IV inversely correlated with the % of CB-sprouted cells (r = -0.52, p = 0.008) and with the CB+ area (r = -0.46, p = 0.022). CONCLUSIONS: In this exploratory study, comorbid depression was associated with a differential pattern of CB cell loss in dentate gyrus combined with a higher CB sprouting. These changes may indicate granular cell dysmaturation associated to the epileptic hyperexcitability phenomena. Further investigations should be carried out to confirm these preliminary findings.


Subject(s)
Calbindins/genetics , Depression/genetics , Epilepsy, Temporal Lobe/genetics , Adult , Calbindins/immunology , Comorbidity , Dentate Gyrus/immunology , Depression/physiopathology , Electroencephalography , Epilepsy/complications , Epilepsy/surgery , Epilepsy, Temporal Lobe/complications , Epilepsy, Temporal Lobe/surgery , Female , Gene Expression Profiling/methods , Hippocampus/metabolism , Humans , Magnetic Resonance Imaging , Male , Memory Disorders/complications , Middle Aged , Neurons/metabolism , Pilot Projects , Temporal Lobe/metabolism , Transcriptome/genetics
16.
Seizure ; 71: 56-59, 2019 Oct.
Article in English | MEDLINE | ID: mdl-31207393

ABSTRACT

PURPOSE: We compared various clinical characteristics of pediatric-onset psychogenic nonepileptic seizures (PNES) between patients from five countries. The purpose of this study was to advance our understanding of pediatric-onset PNES cross-culturally. METHODS: In this retrospective study, we compared consecutive patients with PNES with an age at onset of 16 years and younger from epilepsy monitoring units in Iran, Brazil, the USA, Canada, and Venezuela. Age, gender, age at seizure onset, seizure semiology, predisposing factors, and video-EEG recordings of all patients were extracted. Pearson Chi-Square, one-way ANOVA and Bonferroni correction tests were used for statistical analyses. RESULTS: Two hundred twenty-nine patients were studied (83 from Iran, 50 from Brazil, 39 from Canada, 30 from the USA, and 27 from Venezuela). Mean age at the onset of seizures was 12.1 ±â€¯3.2 years (range: 4-16 years). The sex ratio of the patients was 1.83: 1 (148 females and 81 males). Clinical characteristics of pediatric-onset PNES showed some significant differences among the nations. However, factors associated with pediatric-onset PNES in these five nations were similar. CONCLUSION: This study underscores how international cross-cultural studies can make important contributions to our understanding of PNES. Patients with pediatric-onset PNES from different countries were similar on many risk factors associated with PNES. This suggests universality in many features of PNES. However, intriguing differences were also noted with regard to seizure semiology, which might be the result of cultural factors.


Subject(s)
Cross-Cultural Comparison , Seizures/physiopathology , Somatoform Disorders/physiopathology , Adolescent , Age of Onset , Brazil/ethnology , Canada/ethnology , Child , Child, Preschool , Electroencephalography , Female , Humans , Iran/ethnology , Male , Retrospective Studies , Risk Factors , Seizures/ethnology , Somatoform Disorders/ethnology , United States/ethnology , Venezuela/ethnology
17.
Epilepsy Behav ; 94: 183-188, 2019 05.
Article in English | MEDLINE | ID: mdl-30965202

ABSTRACT

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.


Subject(s)
Poverty/statistics & numerical data , Seizures/therapy , Adult , Age Factors , Age of Onset , Argentina/epidemiology , Employment , Female , Follow-Up Studies , Humans , Male , Middle Aged , Psychotherapy , Retrospective Studies , Seizures/epidemiology , Seizures/psychology , Socioeconomic Factors , Surveys and Questionnaires , Treatment Outcome , Vulnerable Populations
18.
Seizure ; 63: 52-61, 2018 Dec.
Article in English | MEDLINE | ID: mdl-30408712

ABSTRACT

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.


Subject(s)
Drug Resistant Epilepsy/psychology , Seizures/psychology , Adult , Argentina , Developing Countries , Female , Health Knowledge, Attitudes, Practice , Humans , Interviews as Topic , Male , Middle Aged , Qualitative Research , Self Concept , Young Adult
19.
Seizure ; 51: 14-21, 2017 Oct.
Article in English | MEDLINE | ID: mdl-28755568

ABSTRACT

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.


Subject(s)
Psychophysiologic Disorders/psychology , Seizures/psychology , Adolescent , Adult , Argentina , Female , Humans , Male , Psychophysiologic Disorders/complications , Qualitative Research , Young Adult
20.
Epilepsy Behav ; 69: 133-138, 2017 04.
Article in English | MEDLINE | ID: mdl-28259063

ABSTRACT

INTRODUCTION: Depression is the most frequent psychiatric co-morbidity in patients with epilepsy. Lifetime prevalence of depression is reported more frequently in temporal lobe epilepsy and is estimated at 35%. This co-morbidity appears to be related with various mechanisms. The aim of this study was to determine the quality of life (QoL) of patients with pharmacoresistant epilepsy with and without co-morbid depression in an Argentinean population. METHODS: Patients admitted to the video-EEG monitoring unit during the period 2010-2013 went through a standardized psychiatric assessment using SCID-I (Structured Clinical Interview for Axis I diagnoses of DSM-IV), BDI II (Beck Depression Inventory) GAF (Global assessment of functioning), and Q LES Q-SF (for quality of life). Patients were divided in two groups: with and without depression (according to DSM-IV). Sociodemographic data, BDI II scores, GAF, and quality of life (QoL) were compared between the two groups. Comparisons were made using Student's t-test and Mann-Whitney U test. Frequency distributions were compared by Chi-square test. Spearman correlation coefficients were determined. RESULTS: Seventy-seven patients with pharmacoresistant epilepsy were eligible for this study, 41 patients were included in the group with depression (mean BDI II 15.93), and 36 in the group without depression (mean BDI II 3.36) (p=0.001). The overall QoL was significantly lower in the group with depression compared to the group without depression (p<0.01). The most affected areas were: physical health (p=0.013), mood (p=0.006), course activities (referring to school as well as to hobbies or classes outside of school) (p=0.003), leisure time activities (p=0.011), social activities (p=0.047), general activities (p=0.042), and medication (p=0.022). Severity of depression according to BDI II had a negative correlation with overall QoL (r - 0.339, p<0.01). No correlations were found between seizure frequency, QoL and BDI II. CONCLUSION: Patients with pharmacoresistant epilepsy and co-morbid depression reported worst QoL. Depression disrupts daily functioning (leisure, social functioning) and is a negative influence for subjective perception of health and medication. Interdisciplinary treatment should be considered (neurology-psychiatry-psychotherapy).


Subject(s)
Depressive Disorder/epidemiology , Depressive Disorder/psychology , Drug Resistant Epilepsy/epidemiology , Drug Resistant Epilepsy/psychology , Quality of Life/psychology , Adolescent , Adult , Argentina/epidemiology , Comorbidity , Depressive Disorder/diagnosis , Electroencephalography , Female , Humans , Male , Middle Aged , Psychiatric Status Rating Scales , Social Adjustment , Young Adult
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