Kidney dysfunction, systemic inflammation and mental well-being in elderly post-myocardial infarction patients
- PMID: 28081723
 - PMCID: PMC5228176
 - DOI: 10.1186/s40359-016-0170-z
 
Kidney dysfunction, systemic inflammation and mental well-being in elderly post-myocardial infarction patients
Abstract
Background: The aim was to investigate whether mild kidney dysfunction and low-grade inflammation in post-myocardial infarction patients are independently associated with markers of mental well-being (i.e. depressive and apathy symptoms, and dispositional optimism).
Methods: In post-myocardial infarction patients, kidney function was assessed by estimated glomerular filtration rate (eGFR) calculated from the combined CKD-EPI formula based on serum levels of both creatinine and cystatine C. Systemic inflammation was assessed using high sensitivity C-reactive protein (hs-CRP) levels. The 15-item Geriatric Depression Scale (GDS-15), the 3-item apathy subscale and the 4-item optimism questionnaire (4Q) were used to measure mental well-being and were analyzed using linear multivariable regression analysis.
Results: Of the 2355 patients, mean age was 72.3 (range 63-84) years and 80.1% were men. After multivariable adjustment, a poorer kidney function was associated with more depressive symptoms (β = -0.084, p < 0.001), more apathy symptoms (β = -0.101, p < 0.001), and less dispositional optimism (β = 0.072, p = 0.002). Moreover, higher levels of hs-CRP were associated with more depressive symptoms (β = 0.051, p = 0.013), more apathy symptoms (β = 0.083, p < 0.001) and less dispositional optimism (β = -0.047 p = 0.024). Apathy showed the strongest independent relation with both low eGFR and high hs-CRP.
Conclusions: In post-myocardial infarction patients, impaired kidney function and systemic inflammation showed a stronger association with apathy than with depressive symptoms and dispositional optimism.
Keywords: Apathy; Depressive symptoms; Dispositional optimism; Kidney dysfunction; Myocardial infarction; Systemic inflammation.
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- Lichtman JH, Froelicher ES, Blumenthal JA, Carney RM, Doering LV, Frasure-Smith N, et al. Depression as a risk factor for poor prognosis among patients with acute coronary syndrome: Systematic review and recommendations a scientific statement from the american heart association. Circulation. 2014;129:1350–69. doi: 10.1161/CIR.0000000000000019. - DOI - PubMed
 
 
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