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The late-onset psychoses. Clinical and diagnostic features
The Journal of Nervous and Mental Disease
|August 1, 1985
Summary
Late-onset psychosis in older adults is challenging to diagnose and treat. Current diagnostic criteria are not well-suited, highlighting the need for further research into effective therapies.
Area of Science:
- Geriatric Psychiatry
- Psychopathology
Background:
- Late-onset psychosis (psychosis after age 65) is poorly understood.
- Limited and inconsistent studies hinder effective diagnosis and treatment.
Purpose of the Study:
- Characterize clinical features of late-onset psychosis.
- Evaluate the utility of DSM-III criteria for diagnosing these patients.
Main Methods:
- Retrospective analysis of patients admitted to a geropsychiatry unit.
- Assessment of diagnostic reliability and suitability of DSM-III criteria.
Main Results:
- Late-onset psychosis affected 8% of admissions.
- Most patients had organic or major affective disorders; some had primary psychotic disorder.
- Diagnostic reliability was lower in psychotic patients compared to non-psychotic peers.
- DSM-III criteria were poorly suited for categorizing patients, especially with dementia or primary psychosis.
- All patient groups responded to somatic therapies; some benefited from neuroleptics or antidepressants.
Conclusions:
- Diagnosing and treating late-onset psychosis presents significant challenges.
- Existing diagnostic criteria require revision for this population.
- Further research is essential to refine diagnostic criteria and optimize therapeutic strategies, including neuroleptic and antidepressant use.