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Artigo em Inglês | MEDLINE | ID: mdl-33197507


BACKGROUND: Electroconvulsive therapy (ECT) is considered the most effective treatment for major depressive disorder (MDD). In recent years, the pursuit of the neurobiological mechanisms of ECT action has generated a significant amount of functional magnetic resonance imaging (fMRI) research. OBJECTIVE: In this systematic review, we integrated all fMRI research in patients with MDD receiving ECT and, importantly, evaluated the level of convergence and replicability across multiple fMRI metrics. RESULTS: While according to most studies changes in patients with MDD after ECT appear to be widely distributed across the brain, our multimetric review revealed specific changes involving functional connectivity increases in the superior and middle frontal gyri as the most replicated and across-modality convergent findings. Although this modulation of prefrontal connectivity was associated to ECT outcome, we also identified fMRI measurements of the subgenual anterior cingulate cortex as the fMRI signals most significantly linked to clinical response. CONCLUSION: We identified specific prefrontal and cingulate territories which activity and connectivity with other brain regions is modulated by ECT, critically accounting for its mechanism of action.

Hum Brain Mapp ; 2020 Jun 29.
Artigo em Inglês | MEDLINE | ID: mdl-32596977


The ENIGMA group on Generalized Anxiety Disorder (ENIGMA-Anxiety/GAD) is part of a broader effort to investigate anxiety disorders using imaging and genetic data across multiple sites worldwide. The group is actively conducting a mega-analysis of a large number of brain structural scans. In this process, the group was confronted with many methodological challenges related to study planning and implementation, between-country transfer of subject-level data, quality control of a considerable amount of imaging data, and choices related to statistical methods and efficient use of resources. This report summarizes the background information and rationale for the various methodological decisions, as well as the approach taken to implement them. The goal is to document the approach and help guide other research groups working with large brain imaging data sets as they develop their own analytic pipelines for mega-analyses.

Rev. Fund. Educ. Méd. (Ed. impr.) ; 23(3): 121-127, mayo-jun. 2020. tab
Artigo em Espanhol | IBECS | ID: ibc-193878


INTRODUCCIÓN: En el marco de una estrategia para implementar un nuevo programa clínico para la depresión en atención primaria, desarrollamos un curso online con clases videograbadas dirigido a los médicos y enfermeras que van a introducir el programa en su práctica clínica. SUJETOS Y MÉTODOS: La evaluación del curso se realizó mediante un cuestionario estandarizado a los alumnos y un análisis temático de los contenidos de un foro de discusión. RESULTADOS: En la encuesta, los alumnos mostraron satisfacción respecto a sus expectativas, valorando positivamente el formato y el diseño general, los contenidos y su utilidad práctica, sin diferencias significativas según el perfil profesional. En el análisis cualitativo del foro se detectaron potencialidades del programa y del curso, destacando la percepción de que se abordaba una necesidad asistencial relevante. También se señalaron insuficiencias del curso y del programa, y obstáculos externos que pueden dificultar o impedir la implementación: falta de tiempo, inestabilidad en los equipos o exceso de trabajo y requerimientos en el día a día. CONCLUSIONES: Hemos ensayado un eficaz formato online para la formación de profesionales. La evaluación del curso ha sido satisfactoria. El feedback de los alumnos permitirá modelar y perfeccionar futuras ediciones del curso y el propio programa

INTRODUCTION: Within the framework of a strategy to implement a new clinical program for depression in primary care, we developed an online course with videotaped lectures targeted at doctors and nurses who will introduce the program into their clinical practice. SUBJECTS AND METHODS: The evaluation of the course was carried out by a standardized questionnaire for students and a thematic analysis of the contents of a discussion forum. RESULTS: In the survey, the students showed satisfaction regarding their expectations, positively valuing the format and the general design, the contents and their practical utility, without significant differences according to professional profile. In the qualitative analysis of the forum potentialities of the program and the course were detected, highlighting the perception that a relevant care need was addressed. There were also shortcomings of the course and the program, and external obstacles that may hinder or impede implementation: lack of time, instability in the staff, or excessive work and requirements on a day-to-day basis. CONCLUSIONS: We have tested an effective online format for the training of professionals. The evaluation of the course has been satisfactory. The feedback of the students will allow us to model and improve future editions of the course and the program itself

Humanos , Educação a Distância/métodos , Atenção Primária à Saúde , Depressão/epidemiologia , Educação Médica/métodos , Inquéritos e Questionários , Medicina de Família e Comunidade/educação , Educação em Enfermagem