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Chapter 12 - Principles of Geriatric Psychiatry

Published online by Cambridge University Press:  02 January 2025

By
Antonio L. Teixeira  and
Jennifer R. Gatchel
Edited by
Marsal Sanches  and
Jair C. Soares
Marsal Sanches
Affiliation:
McGovern Medical School, Texas
Jair C. Soares
Affiliation:
McGovern Medical School, Texas
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Summary

In this chapter, we discuss late-life psychiatric disorders highlighting their unique biological, clinical, and therapeutic features compared to presentations earlier in life. They are frequently overlapping and associated with dementia and other neurodegenerative diseases. The three D’s – delirium, dementia, and depression – represent common geriatric psychiatry syndromes that can pose diagnostic and therapeutic challenges. Clinical suspicion of delirium must prompt careful investigation of the underlying cause. Dementia is an umbrella term that describes progressive cognitive decline and related behavioral and functional impairments. Behavioral symptoms of dementia are a frequent reason for psychiatry referral. They have a more irregular course than the cognitive decline, and can be categorized in distinct dimensions. Late-life depression has unique features, such as the focus on somatic complaints instead of mood changes.

Keywords

AnxietyDementiaDeliriumDepressionGeriatricsPsychosisLate-Life
Type
Chapter
Information
Fundamentals of Clinical Psychiatry
A Practical Handbook
 , pp. 99 - 108
Publisher: Cambridge University Press
Print publication year: 2025

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