4.5 Article

Anosognosia and depression in patients with Alzheimer's dementia

Journal

ARCHIVES OF GERONTOLOGY AND GERIATRICS
Volume 57, Issue 3, Pages 282-287

Publisher

ELSEVIER IRELAND LTD
DOI: 10.1016/j.archger.2013.03.012

Keywords

Anosognosia; Unawareness; Depressive disorders in dementia

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Anosognosia refers to impaired awareness of patients to realize deficits related to a disorder and is a common symptom of dementia. Anosognosia has far-reaching consequences for diagnosis and treatment and is probably associated with unfavorable prognosis. This study examined the relationship between anosognosia and depression in patients with Alzheimer's dementia (AD). Assessment included interviews of patients and their caregivers. Depressive symptoms were evaluated with observer and self-rating instruments: the Geriatric Depression Scale (GDS), and the mood subscale of the Nurses Observation Scale for geriatric patients (NOSGER). Anosognosia was evaluated with the Anosognosia Questionnaire for Dementia (AQ-D). For the evaluation of behavioral and neuropsychological symptoms in dementia and the caregiver burden, the neuropsychiatric inventory (NPI) and the Cares of older People in Europe (COPE) Index were administered. A total of 47 patients were enrolled in the study at the department's geriatric psychiatry outpatient clinic. A considerable discrepancy was found between observer-and self-ratings of depressive symptoms. In 74.5% of the participants, caregiver ratings indicated secondary symptoms of depression as opposed to patient ratings. Thus, in AD, anosognosia may affect not only deficits in cognition and everyday functioning but also affective symptoms (affective anosognosia). Caregiver rating therefore is particularly important when assessing mood changes in AD patients. (C) 2013 Elsevier Ireland Ltd. All rights reserved.

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