Association among depression, cognitive impairment and executive dysfunction after stroke

ABSTRACT The relationship between depression and cognitive impairment, frequent after stroke, is complex and has not been sufficiently elucidated. Objective: To review the relationship between post-stroke depression and cognitive impairment. Methods: We performed a PubMed database search spanning the last ten years, using the terms post-stroke depression, cognitive dysfunction, cognitive impairment and neuropsychological tests. Our target studies were original quantitative studies that investigated the relationship between post-stroke depression (PSD) and cognitive impairment in stroke patients. Articles published in English, Spanish, Italian and Portuguese were considered. Selection criteria were the use of neuropsychological tests to assess cognitive function, and of either instruments to diagnose major depression, or scales to assess depressive symptoms, within the first three months after stroke. Results: Six original quantitative studies fulfilled the criteria. The prevalence of PSD within the first three months after stroke ranged from 22% to 31%. Incidence ranged from 25% to 27% and was evaluated in only two studies. PSD was associated with increased cognitive impairment. Cognitive impairment was reported in 35.2% to 87% of the patients. Post-stroke cognitive deficits were reported mostly in executive function, memory, language, and speed of processing. Conclusion: Executive dysfunction and depression occur in stroke survivors, are frequently coexistent, and also associated with worse stroke prognosis. Healthcare professionals need to address and provide adequate treatment for depression and executive dysfunctions in stroke patients early in the first three months after stroke. Future studies should evaluate the efficacy of programs evaluating the early detection and treatment of PSD and executive dysfunction in stroke survivors

Psychological assessment in patients with phobic postural vertigo Avaliação psicológica em pacientes com vertigem postural fóbica

Phobic postural vertigo (PPV) is a frequent diagnosis which can be challenging to treat. OBJECTIVE: To investigate the presence of psychiatric disturbances in patients with PPV; to assess the psychological status of patients using adaptive diagnosis; to verify possible correlations between severity of psychiatric disturbance and adaptive efficacy. METHOD: A total of nineteen subjects were assessed and two instruments applied: the Primary Care Evaluation of Mental Disorders Questionnaire (PRIME-MD) and the Adaptive Operationalized Diagnostic Scale (AODS), and results from both tests were compared. RESULTS: Fourteen patients presented with mood disorder and thirteen with anxiety. All patients presented compromised adaptive efficacy. Correlation was found between overall outcome on the PRIME and the AODS (tau= -0.42, p=0.027), Separate analysis revealed correlation between results of the AODS and anxiety disorders (tau= -0.45, p=0.018) but not with mood disorders (tau= -0.36, p=0.054). CONCLUSION: Adaptive compromise was observed in individuals with PPV which was shown to be associated to psychiatric disorders.<br>A vertigem postural fóbica (VPF) é um diagnóstico freqüente e de tratamento difícil. OBJETIVO: Investigar a presença de distúrbios psiquiátricos em pacientes com VPF; avaliar as condições psicológicas dos pacientes através do diagnóstico adaptativo. MÉTODO: Foram avaliados 19 sujeitos e aplicados dois instrumentos de avaliação: Questionário Primary Care Evaluation of Mental Disorders (PRIME-MD) e Escala Diagnóstica Adaptativa Operacionalizada (EDAO) e comparados os resultados de ambos os testes. RESULTADOS: Quatorze pacientes apresentaram transtorno de humor e treze de ansiedade. Todos os pacientes foram avaliados com adaptação ineficaz. Houve correlação entre o resultado geral do PRIME e da EDAO (tau= -0,42, p=0,027). Ao se analisar de maneira separada, foi observada correlação entre os resultados da EDAO e os transtornos de ansiedade (tau= -0,45, p=0,018), não havendo correlação com os transtornos de humor (tau= -0,36, p=0,054). CONCLUSÃO: Há prejuízo na qualidade adaptativa das pessoas que sofrem de VPF e este prejuízo está associado a transtornos psiquiátricos

Torre de Londres e Torre de Hanói: contribuições distintas para avaliação do funcionamento executivo Tower of London and Tower of Hanoi: distinct contributions to the assessment of executive functioning

OBJETIVO: Realizar um estudo teórico sobre comparações de aspectos cognitivos e metodológicos envolvidos no desempenho das Torres de Hanói e de Londres em indivíduos normais. MÉTODO: Revisão narrativa da literatura. RESULTADOS: O desempenho nesses instrumentos não compartilha a variância esperada em virtude das similaridades aparentes em sua estrutura e demanda de solução. Verificaram-se correlações significativas, porém moderadas, entre o desempenho das duas torres, refletindo em média 75% da variância não compartilhada. CONCLUSÕES: Ambas as torres recrutam diferentes processos executivos para solução da tarefa e não podem ser utilizadas como instrumentos permutáveis.<br>OBJECTIVE: To produce theoretical study about comparisons of cognitive and methodological aspects involved in the performance of Towers of Hanoi and London in normal individuals. METHOD: Narrative review of the literature. RESULTS: The performances in these instruments do not share the expected variance due to the apparent similarities in your structure and solution demand. Correlations significant, however moderate, among the two towers performance, were found reflecting the average of 75% of the nonshared variance. CONCLUSIONS: Both towers recruit different executive processes for task solution and cannot be used as exchangeable instruments