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What are the differences between the clinical presentation of depression and the possible symptoms of dementia in an elderly person?

Mercedes Álvarez Herranz
Mercedes Álvarez Herranz
Psychogeriatric psychiatrist
Parc Sanitari Sant Joan de Déu

Although the presentation is sometimes clear and easy to discern, dementia is the primary diagnostic qualifier for depression. Thus, both conditions can present with loss of interest and enthusiasm, changes from previous personality traits, memory lapses, and disturbances in sleep and appetite. Differentiating between them requires a comprehensive evaluation, which often involves additional tests and very likely a longitudinal assessment.

It's also worth highlighting the complexity of the issue given how frequently both conditions co-occur. For example, half of all people with dementia experience depressive symptoms, and sometimes the first symptoms of dementia are depressive in nature. Therefore, differentiating between the two is far from easy and requires the expertise of a specialist.

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Mercedes Álvarez Herranz
Mercedes Álvarez Herranz
Psychogeriatric psychiatrist
Parc Sanitari Sant Joan de Déu
Juan Manuel Mendive
Dr. Juan Manuel Mendive Arbeloa
General Practitioner. Centro de Atención Primaria La Mina
Institut Català de la Salut (ICS)