Evaluation of mood disorder questionnaire positivity and associated factors in a population-based screening study

The Mood Disorders Questionnaire (MDQ) is a 3-item scale that is frequently used in bipolar disorders (BD) screening and questions the symptoms of BD, its effect on functionality, and the coexistence of symptoms. The aim of this study is to evaluate the prevalence of positive screening of the MDQ among general population and to investigate the associated risk factors. In this cross-sectional study, the sample was randomly selected from household data to represent the city population. A total of 432 participants were asked to fill in MDQ, CAGE (cutting down, annoyance by criticism, guilty feeling, and eye-openers) questionnaire, which consists of four clinical interview questions proven to aid in the diagnosis of alcoholism, and clinical and sociodemographic data form. The Cronbach's alpha value of our current study was 0.813 for MDQ. The prevalence of MDQ positivity was found 7.6%. The estimated prevalence rate of bipolar disorders varied between 0.3 and 13.4% according to different cut-off values. Multivariate logistic regression models showed that the presence of possible alcohol addiction, shift work history, and body mass index (BMI) were statistically significant predictors of MDQ positivity. The prevalence of MDQ positivity found is similar to studies in literature. Keeping in mind that psychometric properties of the MDQ, positive screen results should be cautiously interpreted due to the presence of other risk factors and comorbidities. (AU)

When Thoughts Are in a Race: Area 10 and Bipolar Disorders

Racing thought, when patients incessantly shift from one word or sentence to another while pending previous ones unfinished, is a symptom of (hypo)mania in bipolar disorders received less attention hitherto. Here, based on few evidence, we aim to unfold our hypothetical viewpoint that the frontopolar cortex that is believed to play a part in multitasking and management of competing goals might be dysfunctional in bipolar patients and may contribute in induction of flight of ideas. We then address new avenues for future research and try to encourage researchers to design more comprehensive studies to either accept or decline this proposed conjecture.

Inflammatory Markers in the Staging of Bipolar Disorder: A Systematic Review of the Literature / Marcadores inflamatorios en la estadificación del trastorno bipolar: una revisión sistemática de la literatura

ABSTRACT Background: Previous studies suggest that inflammatory molecules play an important role in the pathophysiology of Bipolar Disorder (BD). The evidence suggests that BD may present a progressive course. Therefore there are theories that postulate the relationship between progression and stages of the disease with distinct peripheral biomarkers. Objective: The aim of this study was to carry out a systematic review of the literature of studies about the association between peripheral inflammatory markers and clinical variables related with staging in BD patients. Methods: We conducted a systematic review using electronic databases: PubMed, SciELO, LiLACS and PsycINFO. Keywords were divided into inflammatory markers and, BD and staging. Studies involving euthymic BD patients, studies evaluating peripheral biomarkers and studies correlating these with clinical variables related to neuroprogression or stage of BD were included. Results: We present and discuss the methods and findings of ten articles. The inflammatory markers were measured with different techniques and show some contradictories results. The TNF superfamily and inflammatory cytokines may have a relationship with the neuroprogression of the disease. Conclusions: This study suggests that TNF and ILs could play a role in neuroprogression. However, longitudinal studies are needed to clarify the relationship between factors associated with neuroprogression.

RESUMEN Introducción: Estudios previos indican que las moléculas inflamatorias tienen un papel importante en la fisiopatología del trastorno bipolar (TB). La evidencia apunta a que el TB puede presentar un curso progresivo. Por lo tanto, existen teorías que han postulado una relación entre la progresión y los estadios de la enfermedad con diferentes biomarcadores Revisión sistemática periféricos. Objetivo: El objetivo de este estudio es realizar una revisión sistemática de la literatura de los estudios sobre la asociación entre los marcadores inflamatorios periféricos y las variables clínicas relacionadas con la estadificación en los pacientes con TB. Métodos: Se llevó a cabo una revisión sistemática usando las bases de datos electrónicas PubMed, SciELO, LiLACS y PsycINFO. Las palabras clave se dividieron en marcadores inflamatorios y TB y estadificación. Se incluyeron estudios que evaluaron a pacientes con TB en fase de eutimia, estudios que evaluaron biomarcadores periféricos y estudios que correlacionaron dichos marcadores con las variables clínicas relacionadas con la neuroprogresión o estadificación del TB. Resultados: Se presentan y se discuten los métodos y los hallazgos de 10 artículos. Los marcadores inflamatorios se determinaron con diferentes técnicas y mostraron resultados contradictorios. La super familia del factor de necrosis tumoral y las citocinas inflamatorias podrían tener una relación con la neuroprogresión de la enfermedad. Conclusiones: El presente estudio indica que el factor de necrosis tumoral y las intereucinas pueden tener un papel en la neuroprogresión del TB. Sin embargo, se requieren estudios longitudinales con el fin de clarificar la relación entre los factores asociados con la neuro-progresión.

Bright Light Therapy in the Morning or at Mid-Day in the Treatment of Non-Seasonal Bipolar Depressive Episodes (LuBi): Study Protocol for a Dose Research Phase I / II Trial

OBJECTIVE: This study protocol aims to determine, using a rigorous approach in patients with bipolar disorder (BD) and non-seasonal major depressive episode (MDE), the characteristics of bright light therapy (BLT) administration (duration, escalation, morning and mid-day exposures) depending on the tolerance (hypomanic symptoms). METHODS: Patients with BD I or II and treated by a mood stabilizer are eligible. After 1 week of placebo, patients are randomized between either morning or mid-day exposure for 10 weeks of active BLT with glasses using a dose escalation at 7.5, 10, 15, 30 and 45 minutes/day. A further follow-up visit is planned 6 months after inclusion. Patients will be included by cohorts of 3, with at least 3 days of delay between them, and 1 week between cohorts. If none meet a dose limiting toxicity (DLT; i.e hypomanic symptoms), the initiation dose of the next cohort will be increased. If one patient meet a DLT, an additionnal cohort will start at the same dose. If 2 or 3 patients meet a DLT, from the same cohort or from two cohorts at the same dose initiation, the maximum tolerated dose is defined. This dose escalation will also take into account DLTs observed during the intra-subject escalation on previous cohorts, with a “Target Ceiling Dose” defined if 2 DLTs occured at a dose. DISCUSSION: Using an innovative and more ergonomic device in the form of glasses, this study aims to better codify the use of BLT in BD to ensure a good initiation and tolerance. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT03396744.

Deterioro cognoscitivo en trastorno afectivo bipolar de larga evolución y demencia frontotemporal variante conductual / Cognitive impairment in long-standing bipolar disorder and behavioral variant of frontotemporal dementia

RESUMEN INTRODUCCIÓN: Los pacientes con trastorno afectivo bipolar pueden presentar alteraciones cognoscitivas que en algunos casos tienen un curso progresivo, por lo cual se ha cuestionado si la evolución de esta enfermedad se asocia a demencia, particularmente aquellas pertenecientes al espectro de la degeneración lobar frontotemporal. En este contexto, discriminar si un paciente presenta una demencia secundaria a la enfermedad psiquiátrica de base o si cursa una enfermedad neurodegenerativa además del trastorno afectivo bipolar, es un desafío para el diagnóstico diferencial. OBJETIVO: Comparar los desempeños cognoscitivos en pacientes con trastorno afectivo bipolar, con veinte años o más de evolución de la enfermedad y pacientes con demencia frontotemporal variante conductual. MATERIALES Y MÉTODOS: Estudio exploratorio, descriptivo y transversal en una cohorte seleccionada de casos por método no probabilístico. Los datos se analizan por medio de estadísticos no paramétricos. RESULTADOS: Eespecto al grupo control (N:27), los pacientes con demencia frontotemporal (N:24) presentan desempeños significativamente bajos en memoria verbal, funciones ejecutivas, praxias visoconstruccionales y atención (p <0,01). El grupo de trastorno bipolar (N:17) tiene bajos desempeños en estos procesos, pero no presenta fenómenos patológicos significativos asociados a intrusiones y perseveraciones. Entre los grupos clínicos no se identifican diferencias significativas. CONCLUSIÓN: Aunque los grupos clínicos comparten el compromiso en los procesos cognoscitivos evaluados, los desempeños son más bajos en el grupo de demencia frontotemporal, lo que sugiere que en una enfermedad degenerativa de menor tiempo de evolución y aparición en etapa presenil el déficit cognitivo es mayor que en una enfermedad psiquiátrica crónica.

SUMMARY INTRODUCTION: Patients with Bipolar Disorder may present cognitive alterations that in some cases have a progressive course, whereby it has been questioned if the evolution of this disease is associated with dementia, in particular those that belong to the spectrum of frontotemporal lobar degeneration. Thereby, discriminate if a patient has a dementia secondary to the underlying psychiatric illness or if the patient presents a neurode-generative disease besides the bipolar disorder is a challenge for the differential diagnosis. OBJECTIVE: To compare the cognitive performance in a sample of patients with Bipolar Disorder and twenty years or more of disease progression, and patients with behavioral variant of frontotemporal dementia. MATERIALS AND METHODS: Exploratory, descriptive and transversal study in a cohort of cases selected with a non probabilistic method. Dates are compared through non parametric statistics. RESULTS: Relative to Control group (N:27), Frontotemporal Dementia Patients (N:24) have significantly lower performances in verbal memory, executive functions, visoconstructional praxis and attention tasks (p <0,01). Bipolar Disorder group (N:17) has lower performances in this processes but don't present pathological markers such as intrusions and perseverative responses. There are no significant differences when comparing between clinical groups. CONCLUSION: Although clinical groups share the compromise in most of the cognitive process evaluated, the performances are lower in Frontotemporal dementia group, which suggests that in a degenerative disease of less evolution time and onset in presenile stage, the cognitive deficit is greater than in a chronic psychiatric illness.

Emotion regulation and Residual Depression Predict Psychosocial Functioning in Bipolar Disorder: Preliminary Study / Regulación de las emociones y la depresión residual predicen el funcionamiento psicosocial en el trastorno bipolar: estudio preliminar

This study explores the predictive value of various clinical, neuropsychological, functional, and emotion regulation processes for recovery in Bipolar Disorder. Clinical and demographic information was collected for 27 euthymic or residually depressed BD participants. Seventy one percent of the sample reported some degree of impairment in psychosocial functioning. Both residual depression and problems with emotion regulation were identified as significant predictors of poor psychosocial functioning. In addition, to residual depression, the results of the current study introduce a variable of emotion dysregulation to account for poor psychosocial functioning among BD populations. Improving emotion regulation strategies, in particular, concentration and task accomplishment during negative emotional states could have important consequences for improving overall psychosocial functioning among this population, helping to reduce both the economic burden and high costs to personal wellbeing associated with BD.

Este estudio explora el valor predictivo de los diversos procesos de regulación clínicos, neuropsicológicos, funcionales y emocionales para la recuperación en el Trastorno Bipolar. La información clínica y demográfica se recogió de 27 participantes de TB eutímicos o residualmente deprimidos. Setenta y uno por ciento de la muestra reportó algún grado de deterioro en el funcionamiento psicosocial. Tanto la depresión residual y problemas con la regulación de las emociones fueron identificados como predictores significativos de mal funcionamiento psicosocial. Además de la depresión residual, los resultados del presente estudio introducen una variable de disregulación emocional para dar cuenta del pobre funcionamiento psicosocial en las poblaciones de TB. La mejora de las estrategias de regulación emocional, en particular, la concentración y la realización de tareas durante los estados emocionales negativos podrían tener consecuencias importantes para mejorar el funcionamiento psicosocial global en esta población ayudando a reducir tanto la carga económica y los altos costos para el bienestar personal asociado con TB.

Model endophenotype for bipolar disorder: Qualitative Analysis, etiological factors, and research areas / Modelo endofenotipo de Trastorno Bipolar: Análisis cualitativo, factores etiológicos y las áreas para las cuales la investigación / Modelo de Endofenótipo do Transtorno Bipolar: Análise qualitativa, fatores etiológicos e âmbitos de investigação abordados

The aim of this study is to present an updated view of the writings on the endophenotype model for bipolar disorder using analytical methodologies. A review and analysis of networks was performed through descriptors and keywords that characterize the composition of the endophenotype model as a model of health. Information was collected from between 1992 and 2014, and the main thematic areas covered in the articles were identified. We discuss the results and question their cohesion, emphasizing the need to strengthen and identify the points of connection between etiological factors and characteristics that make up the model of endophenotypes for bipolar disorder.

El objetivo de este trabajo es presentar una visión actualizada de los escritos del modelo endofenotipo para el trastorno bipolar, el uso de las metodologías analíticas. Se realizó una revisión de este tipo de literatura y un análisis de las redes a través de descriptores y palabras clave que caracterizan la composición del modelo endofenotipo como modelo de salud. El momento de la recolección de la información se produjo entre los años 1992-2014, la identificación de las principales áreas temáticas incluidas en los artículos. Se discuten los resultados para la consolidación del modelo de endofenotipos, cuestionando la cohesión y haciendo hincapié en la necesidad de fortalecer e identificar los puntos de conexión entre los factores etiológicos y características que conforman el modelo de endofenotipos para el trastorno bipolar.

O objetivo do presente estudo é o de apresentar uma visão atualizada sobre a produção bibliográfica do modelo de endofenótipo para o transtorno bipolar, recorrendo às metodologias analíticas. Foi realizada para tal uma revisão da literatura e uma análise de redes por meio de descritores e palavras-chaves, que caracterizam a composição do modelo de endofenótipo como um modelo de saúde. O período de recolha das informações ocorreu entre os anos de 1992-2014, identificando nos principais artigos os âmbitos temáticos abordados. Discutem-se os resultados obtidos para a consolidação do modelo de endofenótipos, questionando a coesão e ressaltando a necessidade de reforçar e identificar os pontos de ligação entre os fatores etiológicos e as características que compõe o modelo de endofenótipos para o transtorno bipolar.

Simultaneous determination of asenapine and valproic acid in human plasma using LC-MS/MS：Application of the method to support pharmacokinetic study / 药物分析学报

Combination of asenapine with valproic acid received regulatory approval for acute treatment of schizophrenia and maniac episodes of bipolar disorders. A simple LC-MS/MS method was developed and validated for simultaneous quantification of asenapine and valproic acid in human plasma. Internal standards were added to 300μL of plasma sample prior to liquid-liquid extraction using methyl tertiary butyl ether (MTBE). Chromatographic separation was achieved on Phenomenex C18 column (50 mm ? 4.6 mm, 5μm) in isocratic mode at 40 1C. The mobile phase used was 10 mM ammonium formate-acetonitrile (5:95, v/v) at a constant flow rate of 0.8 mL/min monitored on triple quadrupole mass spectrometer, operating in the multiple reaction monitoring (MRM) mode. The injection volume used for LC-MS/MS analysis was 15μL and the run time was 2.5 min. These low run time and small injection volume suggest the high efficiency of the proposed method. The method was validated over the concentration range of 0.1-10.02 ng/mL and 10-20,000 ng/mL for asenapine and valproic acid respectively. The method recoveries of asenapine (81.33%), valproic acid (81.70%), gliclazide (78.45%) and benzoic acid (79.73) from spiked plasma samples were consistent and reproducible. The application of this method was demonstrated by a pharmacokinetic study in 8 healthy male volunteers with 5 mg asenapine and 250 mg valproic acid administration.

Systematic review of the prevalence of bipolar disorder and bipolar spectrum disorders in population-based studies / Revisão sistemática da prevalência do transtorno bipolar e do espectro bipolar em estudos de base populacional

This paper describes the findings of a systematic literature review aimed at providing an overview of the lifetime prevalence of bipolar disorder and bipolar spectrum disorders in population-based studies. Databases MEDLINE, ProQuest, Psychnet, and Web of Science were browsed for papers published in English between 1999 and May 2012 using the following search string: bipolar disorders OR bipolar spectrum disorders AND prevalence OR cross-sectional OR epidemiology AND population-based OR non-clinical OR community based. The search yielded a total of 434 papers, but only those published in peer-reviewed journals and with samples aged ≥ 18 years were included, resulting in a final sample of 18 papers. Results revealed rather heterogeneous findings concerning the prevalence of bipolar disorders and bipolar spectrum disorders. Lifetime prevalence of bipolar disorder ranged from 0.1 to 7.5%, whereas lifetime prevalence of bipolar spectrum disorders ranged from 2.4 to 15.1%. Differences in the rates of bipolar disorder and bipolar spectrum disorders may be related to the consideration of subthreshold criteria upon diagnosis. Differences in the prevalence of different subtypes of the disorder are discussed in light of diagnostic criteria and instruments applied

O presente artigo descreve os achados de uma revisão sistemática da literatura cujo objetivo foi oferecer uma visão geral sobre a prevalência de transtorno bipolar e transtornos do espectro bipolar em estudos populacionais. A busca foi realizada nas bases de dados MEDLINE, ProQuest, Psychnet e Web of Science, com foco em estudos publicados em inglês entre 1999 e maio de 2012, utilizando-se a seguinte estratégia de busca: bipolar disorders OR bipolar spectrum disorders AND prevalence OR cross-sectional OR epidemiology AND population-based OR non-clinical OR community based. Foram encontrados 434 artigos, mas apenas publicações em revistas científicas com processo de revisão por pares (peer review) e envolvendo participantes com 18 anos ou mais foram incluídos, gerando uma amostra final de 18 estudos. Encontraram-se dados bastante heterogêneos sobre a prevalência do transtorno bipolar e de transtornos do espectro bipolar. A taxa de prevalência do transtorno bipolar ao longo da vida variou entre 0,1 e 7,5%, enquanto a taxa dos transtornos do espectro bipolar variou entre 2,4 e 15,1%. As diferenças entre as prevalências de transtorno bipolar e de transtornos do espectro bipolar parecem estar relacionadas à consideração de formas subliminares no momento do diagnóstico. As diferenças de prevalência dos diferentes subtipos do transtorno são discutidas em relação aos critérios diagnósticos e instrumentos utilizados

The Factors Influencing Bipolar Spectrum Disorders among Elderly in a Small and Medium-Sized City: A Preliminary Study / 대한정신약물학회지

OBJECTIVE: This study was aimed to investigate the prevalence of bipolar spectrum disorder and to analyze the factors influencing on bipolar spectrum disorders. METHODS: Data of this study was collected from over 65 years old who were located in Ik-san, Jeollabuk-do province. 320 data sheets were collected among them 300 were used in analysis. All of subjects were evaluated for the bipolar spectrum disorder, self-esteem, social support, stress with Korean version of Mood Disorder Questionnaire (K-MDQ), Rosenberg Self-Esteem Scale, Scale of Social Support (SSS), Brief Encounter Psychosocial Instrument Korean Version (BEPSI-K). We compared bipolar spectrum disorder among multiple factors and analyzed multiple regression with bipolar spectrum disorder as criterion variables and demographic characteristics. RESULTS: The prevalence of bipolar spectrum disorder in elderly was 3.3%. There were significant differences in result of the test about the bipolar spectrum disorder figuring out from sex (chi2=-2.058, p<0.01), sleep (t=-1.125, p<0.05). There were significant relation among bipolar spectrum disorder with stress (r=0.242, p<0.01), social support (r=-0.127, p<0.05), sleep (r=-0.136, p<0.05) and self esteem (r=-0.052, p<0.05). These factors accounted for 9.2% of bipolar spectrum disorder. CONCLUSION: These results showed that the most important variable that influencing on bipolar spectrum disorders was stress.

What is the Contribution of Executive Dysfunction to the Cognitive Profile of Bipolar Disorder? A Well-Controlled Direct Comparison Study / ¿Cuál es la contribución de la disfunción ejecutiva al perfil cognitivo del trastorno bipolar? Un estudio comparativo bien controlado

Background: Large scale neuropsychological studies of patients with bipolar disorder have reported verbal memory and executive function deficits that persist during remission. A recent analysis by Thompson et al. (2009) indicated that verbal memory deficits could be entirely explained by the statistical variance attributed to primary executive function deficits. This study tests the hypothesis that verbal memory deficits in bipolar patients are largely the result of executive difficulties by direct comparison of verbal neuropsychological tests primarily differing in their executive load as well as examining potential interactions with medication status. Methods: 33 Bipolar I patients not taking medication, 40 Bipolar I patients taking medication, and 28 healthy controls were compared on measures of IQ, verbal fluency, category fluency, verbal recall, and category prompted recall. Results: After controlling for IQ, performance on tasks that involved additional executive involvement was significantly worse. Medication had a small but reliable effect on cognitive performance. Conclusions: The results provide support to the hypothesis that the most significant source of cognitive impairment in bipolar disorder stems from executive impairment and that verbal memory deficits may arise as a result of this, rather than from primary impairment to core verbal memory mechanisms.

Introducción: Los estudios neuropsicológicos a gran escala de pacientes con trastorno bipolar han reportado déficits en la memoria verbal y en la función ejecutiva que persisten durante la remisión. Un análisis reciente realizado por Thompson et al. indicó que los déficits en la memoria verbal podían explicarse enteramente por la varianza estadística atribuida a los déficits en la función ejecutiva primaria. Este estudio demuestra la hipótesis de que los déficits en la memoria verbal de pacientes bipolares son mayormente el resultado de las dificultades ejecutivas mediante una comparación directa de pruebas neuropsicológicas verbales, que difieren principalmente en su carga ejecutiva, como también mediante la examinación las interacciones potenciales con el estado de la medicación. Métodos: Se compararon 33 pacientes con trastorno bipolar I que no estaban tomando medicamentos con 28 controles saludables respecto a sus medidas de coeficiente intelectual (CI), fluidez verbal, fluidez de categorías, memoria verbal y memoria alentada por categorías. Resultados: Después de realizar controles relacionados con el CI, el desempeño que requería un mayor involucramiento ejecutivo era significativamente peor. Los medicamentos tenían un efecto pequeño pero confiable sobre el desempeño cognitivo. Conclusiones: Los resultados soportan la hipótesis de que la fuente más significativa de trastornos cognitivos en el trastorno bipolar es el trastorno ejecutivo y que pueden surgir déficits en la memoria verbal como resultado de este, y no de un trastorno primario de los mecanismos centrales de la memoria verbal.

Insight y funciones cognitivas en sujetos con bipolaridad I / Insight and cognitive functions in subjects with bipolar I disorder

Introduction: Insight represents a variable quality in subjects with bipolar disorders not only during the presence of acute episodes, but also during euthymic periods. It has been observed that the cognitive alterations found in the acute phase of mood disorders persist during the remission of symptoms. Therefore, variables, insight and cognitive alterations could be linked. The objective of this study is to establish the relationship between the cognitive functions and insight in euthymic bipolar I subjects. Method: In order to establish the alteration of the cognitive functions, we applied the Neuropsychological Battery Luria-Nebraska (BNLN) to a group of 25 euthymic bipolar I subjects. The same subjects were tested with the SUMD test (Scale to Assess Unawareness of Mental Disorder) and the relationship between both psychometric instruments was studied. Results: 76 per cent of the subjects showed signifi cant cognitive alterations. The most altered functions corresponded to intellectual processes, memory processes, arithmetic skills and receptive language. We found that the subject with less cognitive alterations represented a better insight then those with a higher cognitive defi cit. Conclusions: The results give evidence about the presence of cognitive alterations in euthymic bipolar patients. Those with a lesser cognitive deficit have a better capacity for insight or a higher awareness of sickness, according to the parameters of SUMD.

Introducción: El insight representa una cualidad variable en sujetos portadores de cuadros bipolares no sólo durante la presencia de los episodios agudos, sino también durante eutimia. Se ha observado que las alteraciones cognitivas encontradas en las fases agudas de los trastornos anímicos persistirían también en la remisión de los síntomas. Por lo tanto, ambas variables, insight y alteraciones cognitivas pueden estar vinculadas entre sí. El objetivo del presente estudio es establecer las relaciones de las funciones cognitivas y el insight en sujetos bipolares I eutímicos. Método: Para establecer la alteración de las funciones cognitivas, se aplicó la Batería Neuropsicológica Luria-Nebraska (BNLN) a un grupo de 25 bipolares tipo I eutímicos. A los mismos sujetos se les aplicó el test SUMD (Scale to Assess Unawareness of Mental Disorder) y se relacionaron ambos instrumentos psicométricos. Resultados: El 76 por ciento de los sujetos mostró alteraciones cognitivas significativas. Las funciones más alteradas correspondieron a los Procesos Intelectuales, Procesos Mnésicos, Destrezas Aritméticas y Lenguaje Receptivo. Se encontró que los sujetos con menores alteraciones cognitivas presentaban un mejor insight que aquellos con un mayor déficit cognitivo. Conclusiones: Los resultados aportan evidencias acerca de la presencia de alteraciones cognitivas en pacientes bipolares eutímicos. Aquellos con un menor déficit cognitivo poseen una mejor capacidad de insight o mayor conciencia de enfermedad, según los parámetros del SUMD.

Validity of the Brazilian Portuguese version of the bipolar spectrum diagnostic scale / Validade da versão brasileira em português da escala diagnóstica do espectro bipolar

OBJECTIVE: Bipolar spectrum disorders (BSDs) are prevalent and frequently unrecognized and undertreated. This report describes the development and validation of the Brazilian version of the bipolar spectrum diagnostic scale (B-BSDS), a screening instrument for bipolar disorders, in an adult psychiatric population. METHOD: 114 consecutive patients attending an outpatient psychiatric clinic completed the B-BSDS. A research psychiatrist, blind to the B-BSDS scores, interviewed patients by means of a modified version of the mood module of the Structured Clinical Interview for DSM-IV ("gold standard"). Subthreshold bipolar disorders were defined as recurrent hypomania without a major depressive episode or with fewer symptoms than those required for threshold hypomania. RESULTS: The internal consistency of the B-BSDS evaluated with Cronbach's alpha coefficient was 0.89 (95 percent CI; 0.86-0.91). On the basis of the modified SCID, 70 patients (61.4 percent) of the sample received a diagnosis of BSDs. A B-BSDS screening score of 16 or more items yielded: sensitivity of 0.79 (95 percent CI; 0.72-0.85), specificity of 0.77 (95 percent CI; 0.70-0.83), a positive predictive value of 0.85 (95 percent CI; 0.78-0.91) and a negative predictive value of 0.70 (95 percent CI; 0.63-0.75). CONCLUSION: The present data demonstrate that the B-BSDS is a valid instrument for the screening of BSDs.

OBJETIVO: Transtornos do espectro bipolar (TEB) são prevalentes e comumente subdiagnosticados e subtratados. O presente trabalho descreve o desenvolvimento e a validação da versão brasileira da escala diagnóstica do espectro bipolar (B-EDEB), um instrumento de rastreio para transtornos bipolares, em uma população psiquiátrica adulta. MÉTODO: 114 pacientes consecutivos de um ambulatório psiquiátrico completaram a versão brasileira da B-EDEB. Um psiquiatra pesquisador, cego para os escores do B-EDEB, entrevistou os participantes por meio de uma versão modificada do módulo de transtornos do humor da entrevista clínica estruturada para o DSM-IV ("padrão-ouro"). RESULTADOS: A consistência interna da B-EDEB, avaliada mediante o coeficiente alfa de Cronbach, foi de 0,89 (IC 95 por cento; 0,86-0,91). De acordo com o padrão-ouro, 70 (61,4 por cento) participantes tiveram diagnóstico de TEB. Um escore da B-EDEB de 16 ou mais itens apresentou sensibilidade de 0,79 (IC 95 por cento; 0,72-0,85), especificidade de 0,77 (IC 95 por cento; 0,70-0,83), valor preditivo positivo de 0,85 (IC 95 por cento; 0,78-0,91) e valor preditivo negativo de 0,70 (IC 95 por cento; 0,63-0,75). CONCLUSÃO: Os resultados do presente estudo demonstram que a B-EDEB é um instrumento válido para o rastreio de TEB.

Evaluación de la funciones cognitivas en trastornos bipolares I, a través de la batería neuropsicológica Luria-Nebraska / Evaluation of cognitive functions in bipolar disorder, using the Luria-Nebraska nuropsychological battery

Introduction: Numerous investigations have reported that cognitive alterations found during active episodes in mood disorders will persist in euthymic states and could be associated to the social and occupational dysfunctions found in an important rate of bipolar patients. Therefore, it is necessary to study the characteristics of these cognitive disturbances in order to establish therapeutic proceedings that will include this factor. The objective of the present study is the evaluation of the cognitive functions in euthymic bipolar patients. It was hypothesized that the cognitive functions of the bipolar patients would be impaired. Methods: To establish the permanence or the impairment of the cognitive functions, the Luria-Nebraska Neuropsychological Battery (LNNB) was applied to a group of 25 euthymic bipolar type I patients. Results: 76 percent of the patients tested showed significant cognitive impairment. Receptive language, arithmetic skills, mnemic and intellectual processes were affected most. Conclussion: The results show evidence that cognitive dysfunctions found in mood disorders are not exclusive of active episodes, and could persist during remission. These findings were congruent with previous investigations that utilized different psychometrical tests.

Introducción: Numerosas investigaciones han observado que las alteraciones cognitivas encontradas en las fases agudas de los trastornos anímicos persistirían aun en remisión y podrían asociarse a las disfunciones sociales y ocupacionales encontradas en sujetos con trastornos anímicos. Por lo tanto, resulta necesario estudiar las características de las alteraciones de las funciones cognitivas en orden de establecer procedimientos terapéuticos que aborden este factor. El objetivo del presente estudio es la evaluación de las funciones cognitivas en sujetos bipolares eutímicos. Se planteó la hipótesis de que las funciones cognitivas de los sujetos evaluados se encontrarían alteradas. Método: Para establecer la alteración o permanencia de las funciones cognitivas, se aplicó la Bateria Neuropsicológica Luria-Nebraska (BNLN) a un grupo de 25 bipolares tipo I eutímicos. Resultados: El 76 por ciento de los sujetos mostró alteraciones cognitivas significativas. Las funciones más alteradas correspondieron a los Procesos Intelectuales, Procesos Mnésicos, Destrezas Aritméticas y Lenguaje Receptivo. Conclusiones: Los resultados aportan evidencias de alteraciones cognitivas en pacientes bipolares eutímicos. Esto sería congruente con investigaciones anteriores realizadas con pruebas psicométricas distintas.

¿Para qué sirve y cómo se construye un registro de los estados de ánimo? / What utility and how do you construct a register of different modds?

The register of the different moods not only has a heuristic value in the classic description of the manic depressive syndrome done by Emil Kraepelin, but also has a fundamental roll in investigation as well as in clinical treatment of the bipolar disorder, that way becoming an essential tool in the tasks of psychiatrist and psychologist, in charge of patients with mood syndromes. A register of the mood states permits having a graphic and longitudinal vision of the evolution of the mood episodes of patients. This is fundamental for the control of this syndrome who’s central characteristic is the reoccurrence of episodes and have diverse clinical presentations, can change its course over time and requires complex therapeutic interventions.

Los registros de los estados de ánimo además de tener un valor heurístico en la descripción clásica de la enfermedad maniaco depresiva realizada por Emil Kraepelin, tienen un rol fundamental tanto en la investigación como en la clínica del trastorno bipolar, siendo una herramienta imprescindible en el quehacer clínico del psiquiatra o psicólogo, que está a cargo de pacientes con enfermedades del ánimo. Un registro de los estados del ánimo permite tener una visión gráfica y longitudinal de la evolución de los episodios anímicos del paciente. Esto es fundamental para el control de esta enfermedad cuya característica central es la recurrencia de episodios y que además posee presentaciones clínicas diversas, puede cambiar su curso a lo largo del tiempo y requerir de intervenciones terapéuticas complejas.