Ansiedad y depresión en la esclerosis múltiple remitente-recidivante: relación con las alteraciones neuropsicológicas y la percepción subjetiva de deterioro cognitivo en pacientes con discapacidad mínima/leve / Anxiety and depression in relapsing-remitting multiple sclerosis: association with neuropsychological performance and subjective cognitive impairment in patients with minimal levels of neurological disability

RESUMEN

Introducción. La ansiedad y la depresión son trastornos psiquiátricos vinculados a la Esclerosis Múltiple (EM). Sin embargo, la ansiedad no ha sido prácticamente estudiada. Objetivos. Examinar la asociación de ambos trastornos con el deterioro neuropsicológico y su contribución a la autopercepción de deterioro cognitivo. Sujetos y métodos. Se estudiaron 33 pacientes con EM Remitente-Recidivante y niveles de discapacidad mínima-leve. Instrumentos Hospital Anxiety and Depression Scale (HADS); Multiple Sclerosis Neuropsychological Screening Questionnaire; Brief Repeatable Battery of Neuropsychological Tests. El examen neuropsicológico se aplicó a 67 controles. Resultados. La ansiedad y la depresión no están relacionadas con el deterioro neuropsicológico. La gravedad de la sintomatología ansiosa está especialmente asociada a una menor duración de la EM. Ansiedad y depresión están altamente correlacionadas y ambas predicen la percepción subjetiva de deterioro. La capacidad predictiva del HADS-total sobre la percepción subjetiva de deterioro fue similar a la obtenida por las subescalas de ansiedad y depresión por separado. Conclusiones. La autopercepción de deterioro cognitivo en la EMRR con discapacidad mínima podría estar relacionada con un factor de malestar psicológico general compartido por la ansiedad y la depresión. Nuestros resultados resaltan la importancia de detectar y tratar la sintomatología ansiosa en fases iniciales de la EM.

ABSTRACT

Introduction. Anxiety and depression are common psychiatric symptoms among multiple sclerosis (MS) patients. However, anxiety is relatively under-studied. Aims. To examine the associations of anxiety and depression with cognitive functioning and to evaluate their contribution to subjective cognitive impairment, after accounting for neuropsychological impairment. Subjects and methods. 33 patients with relapsing-remitting MS and minimal levels of disability were evaluated. Assessment measures: Hospital Anxiety and Depression Scale (HADS); Multiple Sclerosis Neuropsychological Screening Questionnaire-self report (MSNQ-S); Brief Repeatable Battery of Neuropsychological Tests (BRB). We also assessed a group of 67 controls with the BRB. Results. Neuropsychological impairment was not significantly correlated to anxiety or depression. Increased severity of anxiety symptoms was remarkably related with low disease duration. Hierarchical regression analysis showed that anxiety and depression predicted MSNQ-S. Anxiety and depression were highly correlated. HADS total score predicted a similar amount of variance to subjective cognitive impairment, compared with independent anxiety and depression measures. Conclusions. In RR MS patients with minimal levels of neurological disability, cognitive complaints could be related with a component of general psychological distress common to anxiety and depression. Despite this overlap, our study highlights the importance of assessing and treating anxiety symptoms in the first years since onset.