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[Cognitive disorders in the structure of endogenous depression in old age]
Insights
Cognitive dysfunction in elderly patients with major depressive episode is often reversible with treatment. Severity and duration of depression impact cognitive impairment, aiding in predicting outcomes.
Area of Science:
- Geriatric Psychiatry
- Neuropsychology
- Clinical Psychology
Background:
- Late-life depression frequently presents with cognitive impairment.
- Understanding the dynamics of these cognitive changes is crucial for effective treatment and prognosis.
Purpose of the Study:
- To investigate the dynamics and reversibility of cognitive disorders in elderly patients with major depressive episode.
- To explore the relationship between cognitive dysfunction and the course/outcome of depressive phases.
Main Methods:
- A cohort of 31 inpatients (aged 60-88) with major depressive episode were assessed.
- Cognitive function was evaluated using the Hamilton Depression Rating Scale (HAM-D) and Mini-Mental State Examination (MMSE) four times during the depressive phase.
Main Results:
- All patients exhibited cognitive dysfunction during the depressive episode.
- Cognitive impairments were largely reversible (90.3%) with therapy.
- Cognitive disorders were associated with both depression severity/complexity and aging processes.
- The degree of impairment correlated with depression severity, complexity, therapy duration, and remission quality.
Conclusions:
- Dynamic assessment of cognitive disorders aids in differentiating depression from early degenerative diseases.
- Cognitive function changes can predict the course, outcome, and therapeutic response in late-life depression.
Abstract:
31 aged inpatients (60-88 years) with major depressive episode (DSM-III-R) have been investigated in order to study the dynamics and reversion of cognitive disorders in late depression and their relation to the course and outcome of depressive phases. The dynamic evaluation was achieved by 4-times testing with HAM-D and MMSE within the phase. All patients had some cognitive disfunction at the crucial of the phase, which in most cases (90.3%) was completely reversible during the therapy. It was found that cognitive disorders were partly associated with depression and where party related to the aging processes. The degree of cognitive impairments at the crucial stage of the phase depended upon the severity (t = 0.73; p < 0.001) and complexity (t = 0.71; p < 0.001) of the depressive syndrome. It also correlated with the duration of active therapy (t = 0.53; p < 0.005) and quality of the following remission (t = 0.48; p < 0.01). The dynamic assessment of the cognitive disorders may be used for the differentiation of pure depression from the states with the beginning degenerative disease, for the prediction of the course and outcome of depression and response to the therapy.