Relations Between Executive Functions and Different Symptomatic Dimensions in Obsessive Compulsive Disorder

Não há consenso na literatura quanto ao funcionamento neuropsicológico, a gravidade dos sintomas obsessivo-compulsivos (SOC) e as definições de suas dimensões. Realizou-se um estudo transversal para investigar a relação entre as funções executivas e a gravidade dos SOC nas várias dimensões, de acordo com os critérios dimensionais da Escala de Sintomas Obsessivo-compulsivos de Yale-Brown. Foram avaliados 28 pacientes com SOC, por meio de oito instrumentos de avaliação das funções executivas. A gravidade dos SOC, na dimensão contaminação/limpeza, correlacionou-se negativamente com as funções executivas controle inibitório e atenção. A gravidade da dimensão colecionismo foi positivamente correlacionada com a flexibilidade cognitiva, o processamento visual e o raciocínio lógico. Houve uma correlação negativa com a capacidade de desenvolver estratégias eficientes de resolução de problemas. Houve também uma correlação positiva entre a gravidade na dimensão simetria/ordenação e controle da atenção. Resultados sugerem que o perfil de funções executivas no TOC é definido pela gravidade das dimensões dos SOC.No hay consenso en la literatura sobre el funcionamiento neuropsicológico, la gravedad de los síntomas obsesivo-compulsivos (SOC) y las definiciones de sus dimensiones. Fue llevado a cabo un estudio transversal para investigar la relación entre la función ejecutiva y la gravedad de la SOC en diversas dimensiones de estudio, de acuerdo con los criterios de trastorno obsesivo-compulsivo Escala de Síntomas Dimensión de Yale-Brown. Fueron evaluados 28 pacientes con SOC, utilizando ocho instrumentos para evaluar las funciones ejecutivas. La gravedad de los SOC en la dimensión contaminación / limpieza se correlaciona inversamente con la función ejecutiva control inhibitorio y atención. La gravedad de la dimensión de la recolección se correlacionó positivamente con la flexibilidad cognitiva, el procesamiento visual y el razonamiento lógico. Fue encontrada una correlación negativa con la capacidad de desarrollar estrategias eficaces para la resolución de problemas. Hubo también una correlación positiva entre la gravedad en la dimensión simetría / ordenación y control de la atención. Los resultados sugieren que el perfil de funciones ejecutivas en el TOC se define por la gravedad de las dimensiones de los SOC.There is no consensus in the literature as to neuropsychological functioning, the severity of obsessive-compulsive symptoms (OCS) and the definitions of the OCS dimensions. We conducted a cross-sectional study investigating the relationship between executive function and OCS severity in the various dimensions, according to the Dimensional Yale-Brown Obsessive-Compulsive Scale criteria. We evaluated 28 patients with OCS, using eight neuropsychological instruments to evaluate executive function. We found that OCS severity in the contamination/cleaning dimension correlates negatively with executive function, inhibitory control and attentional control. Severity in the hoarding dimension correlated positively with cognitive flexibility, visual processing and logical reasoning, whereas it correlated negatively with the capacity to develop efficient complex problem-solving strategies. There was also a positive correlation between severity in the symmetry/ordering dimension and attentional control. Our findings suggest that the profile of executive function in OCD is defined by the severity of the various OCS dimensions

Traços de personalidade e resposta terapêutica no transtorno obsessivo-compulsivo

OBJECTIVE: Comorbidity with personality disorders in obsessive-compulsive patients has been widely reported. About 40% of obsessive-compulsive patients do not respond to first line treatments. Nevertheless, there are no direct comparisons of personality traits between treatment-responsive and non-responsive patients. This study investigates differences in personality traits based on Cloninger's Temperament and Character Inventory scores between two groups of obsessive-compulsive patients classified according to treatment outcome: responders and non-responders. METHOD: Forty-four responsive and forty-five non-responsive obsessive-compulsive patients were selected. Subjects were considered treatment-responsive (responder group) if, after having received treatment with any conventional therapy, they had presented at least a 40% decrease in the initial Yale-Brown Obsessive Compulsive Scale score, had rated "better" or "much better" on the Clinical Global Impressions scale; and had maintained improvement for at least one year. Non-responders were patients who did not achieve at least a 25% reduction in Yale-Brown Obsessive Compulsive Scale scores and had less than minimal improvement on the Clinical Global Impressions scale after having received treatment with at least three selective serotonin reuptake inhibitors (including clomipramine), and at least 20 hours of cognitive behavioral therapy. Personality traits were assessed using Temperament and Character Inventory. RESULTS: Non-responders scored lower in self-directedness and showed a trend to score higher in persistence than responders did. CONCLUSION: This study suggests that personality traits, especially self-directedness, are associated with poor treatment response in obsessive-compulsive patients.OBJETIVO: Comorbidade com transtornos de personalidade tem sido extensamente descrita no transtorno obsessivo-compulsivo. Aproximadamente 40% dos pacientes com transtorno obsessivo-compulsivo não respondem a tratamentos de primeira linha. Não obstante, não existem estudos comparando diretamente traços de personalidade entre pacientes responsivos e refratários ao tratamento do transtorno obsessivo-compulsivo. Este estudo investiga diferenças nos traços da personalidade baseados no Inventário de Temperamento e Caráter de Cloninger (TCI) entre dois grupos de pacientes com transtorno obsessivo-compulsivo classificados segundo desfecho terapêutico: responsivos e refratários. MÉTODO: Quarenta e cinco pacientes refratários e 44 responsivos foram selecionados. Os indivíduos foram considerados responsivos se, após tratamento com terapêutica convencional, apresentaram diminuição de ao menos 40% no escore inicial da Yale-Brown Obsessive Compulsive Scale, foram classificados como "melhor" ou "muito melhor" na Clinical Global Impressions; e mantiveram melhora por pelo menos um ano. Os refratários eram os pacientes que não atingiram redução de ao menos 25% na Yale-Brown Obsessive Compulsive Scale e tiveram a melhoria menor que "mínima" na Clinical Global Impressions após o tratamento com ao menos três inibidores seletivos da recaptura de serotonina, incluindo clomipramina, e ao menos 20 horas da terapia cognitiva-comportamental. Os traços da personalidade foram avaliados através do Temperament and Character Inventory. RESULTADOS: Refratários pontuaram menos em autodirecionamento e tenderam a pontuar mais em persistência. CONCLUSÃO: Este estudo sugere que os traços de personalidade, especialmente autodirecionamento, estão associados com a resposta pobre do tratamento em pacientes com transtorno obsessivo-compulsivo.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP, The State of São Paulo Research Foundation)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPQ), Brazilian Council for Scientific and Technological Developmen

Towards a definitive symptom structure of obsessive-compulsive disorder: A factor and network analysis of 87 distinct symptoms in 1366 individuals

Background The symptoms of obsessive-compulsive disorder (OCD) are highly heterogeneous and it is unclear what is the optimal way to conceptualize this heterogeneity. This study aimed to establish a comprehensive symptom structure model of OCD across the lifespan using factor and network analytic techniques. Methods A large multinational cohort of well-characterized children, adolescents, and adults diagnosed with OCD (N = 1366) participated in the study. All completed the Dimensional Yale-Brown Obsessive-Compulsive Scale, which contains an expanded checklist of 87 distinct OCD symptoms. Exploratory and confirmatory factor analysis were used to outline empirically supported symptom dimensions, and interconnections among the resulting dimensions were established using network analysis. Associations between dimensions and sociodemographic and clinical variables were explored using structural equation modeling (SEM). Results Thirteen first-order symptom dimensions emerged that could be parsimoniously reduced to eight broad dimensions, which were valid across the lifespan: Disturbing Thoughts, Incompleteness, Contamination, Hoarding, Transformation, Body Focus, Superstition, and Loss/Separation. A general OCD factor could be included in the final factor model without a significant decline in model fit according to most fit indices. Network analysis showed that Incompleteness and Disturbing Thoughts were most central (i.e. had most unique interconnections with other dimensions). SEM showed that the eight broad dimensions were differentially related to sociodemographic and clinical variables. Conclusions Future research will need to establish if this expanded hierarchical and multidimensional model can help improve our understanding of the etiology, neurobiology and treatment of OCD. © 2021 The Author(s). Published by Cambridge University Press

Brazilian Research Consortium on Obsessive-Compulsive Spectrum Disorders guidelines for the treatment of adult obsessive-compulsive disorder. Part II: cognitive-behavioral therapy

Objectives: To summarize evidence-based cognitive-behavioral therapy (CBT) treatment and propose clinical interventions for adult patients with obsessive-compulsive disorder (OCD). Methods: The literature on CBT interventions for adult OCD, including BT and exposure and response prevention, was systematically reviewed to develop updated clinical guidelines for clinicians, providing comprehensive details about the necessary procedures for the CBT protocol. We searched the literature from 2013-2020 in five databases (PubMed, Cochrane, Embase, PsycINFO, and Lilacs) regarding study design, primary outcome measures, publication type, and language. Selected articles were assessed for quality with validated tools. Treatment recommendations were classified according to levels of evidence developed by the American College of Cardiology and the American Heart Association. Results: We examined 44 new studies used to update the 2013 American Psychiatric Association guidelines. High-quality evidence supports CBT with exposure and response prevention techniques as a first-line treatment for OCD. Protocols for Internet-delivered CBT have also proven efficacious for adults with OCD. Conclusion: High-quality scientific evidence supports the use of CBT with exposure and response prevention to treat adults with OCD

Estudo comparativo de sintomas impulsivos e compulsivos em pacientes com transtornos obsessivo-compulsivo e transtornos de controle de impulsos não classificados em outros capítulos do DSM-IV

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Clinical features of conventional treatment refractory obsessive-compulsive disorder patients

Estudou-se fatores associados a refratariedade do Transtorno Obsessivo-Compulsivo aos tratamentos convencionais em 23 pacientes refratários e 26 respondedores. Os refratários mostraram: sintomas obsessivo-compulsivos, depressivos e ansiosos mais intensos; pior qualidade de vida; mais freqüentemente não ter cônjuge, ter menor escolaridade e condição sócio-econômica, maior acomodação familiar, curso crônico da doença, maior freqüência de conteúdo sexual/religioso, maior período de tempo para iniciar o tratamento e Transtorno Alimentar co-mórbido. O modelo de regressão logística mostrou que maior acomodação familiar e sintomas sexuais/religiosos estão associadas à refratariedade.We studied possible associated factors of conventional treatment refractoriness in 23 refractory versus 26 respondent Obsessive Compulsive Disorder patients. Refractories had: higher severity of OC, depression and anxiety symptoms; worse quality of life; no spouse; less scholarship; lower social class; higher family accommodation; chronic course of the disease; more frequent sexual/religious symptoms; a longer period to begin the treatment; and comorbid Eating Disorder. Regression analysis model showed that, higher family accommodation and sexual/religious symptoms are associated to refractorines