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Executive dysfunction and long-term outcomes of geriatric depression
G S Alexopoulos1, B S Meyers, R C Young
1Department of Psychiatry, Cornell University, White Plains, NY, USA. gsalexop@mail.med.cornell.edu
Archives of General Psychiatry
|March 11, 2000
Summary
Executive dysfunction, not memory issues, predicts relapse in geriatric depression. This finding helps identify elderly patients needing closer monitoring for recurrent depressive symptoms.
Area of Science:
- Geriatric Psychiatry
- Neuropsychology
- Clinical Psychology
Background:
- Major depression in the elderly is a significant concern.
- Understanding factors predicting relapse and residual symptoms is crucial for effective long-term management.
Purpose of the Study:
- To investigate the association between executive and memory impairment and the relapse, recurrence, and course of residual depressive symptoms in elderly patients with major depression.
Main Methods:
- Fifty-eight elderly patients remitted from major depression were treated with nortriptyline.
- Patients were randomized to nortriptyline maintenance or placebo for up to 2 years.
- Executive function and memory were assessed using the Dementia Rating Scale.
Main Results:
- Abnormal executive function (initiation, perseveration) was linked to relapse and recurrence.
- Memory impairment did not significantly predict depression outcomes in this sample.
- Disability, medical burden, and social support also did not influence depression outcomes.
Conclusions:
- Executive dysfunction is associated with relapse, recurrence, and residual symptoms in geriatric depression.
- Identifying patients with executive dysfunction may guide vigilant follow-up strategies.
- Further research into prefrontal pathways is warranted to understand perpetuating factors in elderly depression.