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Depression is associated with cognitive dysfunction in older adults with heart failure
Sarah Garcia1, Mary Beth Spitznagel, Ronald Cohen
1Department of Psychology, Kent State University, 221 Kent Hall Addition, Kent, OH 44242, USA.
Cardiovascular Psychiatry and Neurology
|December 24, 2011
Summary
Depression is linked to worse cognitive function in heart failure patients. Addressing depressive symptoms may improve attention, memory, and executive function in this population.
Area of Science:
- Cardiology
- Neuropsychology
- Psychiatry
Background:
- Heart failure (HF) is frequently associated with cognitive impairment, affecting attention and memory.
- Depression is common in HF patients, but its impact on cognitive deficits remains unclear.
- Shared underlying mechanisms, potentially indicated by neuroimaging abnormalities, may link cognitive dysfunction and depression in HF.
Purpose of the Study:
- To investigate the association between depressive symptoms and cognitive performance in individuals with heart failure.
- To determine if depression independently predicts cognitive deficits in heart failure.
- To explore the specific cognitive domains affected by depression in this patient group.
Main Methods:
- 116 participants with heart failure underwent neuropsychological testing and completed self-report depression measures.
- Regression models were used to assess the predictive value of depression on cognitive test performance.
- Partial correlations were conducted to examine the relationship between depressive symptoms and specific cognitive domains.
Main Results:
- Depression significantly and independently predicted poorer performance across all cognitive domains assessed.
- Higher levels of depressive symptoms correlated with worse attention, executive function, psychomotor speed, and language abilities.
- The findings suggest a direct association between depressive symptoms and cognitive impairment in heart failure.
Conclusions:
- Depressive symptoms are demonstrably linked to poorer cognitive performance in individuals with heart failure.
- Further research is necessary to elucidate the precise mechanisms underlying this association.
- Investigating the potential cognitive benefits of treating depression in heart failure patients is warranted.
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