Journal
CLINICAL CARDIOLOGY
Volume 29, Issue 4, Pages 170-174Publisher
CLINICAL CARDIOLOGY PUBL CO
DOI: 10.1002/clc.4960290409
Keywords
depression; coronary artery disease; low T-3 syndrome; cardiac impairment; N-amino terminal fragment of the pro-B-type natriuretic peptide; gender
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Funding
- NIMH NIH HHS [R01-MH051246] Funding Source: Medline
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Background: Increased rates of depression are reported in coronary artery disease (CAD). In heart disease, depression increases disability, reduces quality of life, and increases mortality. Hypothesis: The study was undertaken to examine the relationship between depression and thyroid axis function in patients with CAD. Methods: In all, 73 patients with CAD, consecutively admitted to a cardiac rehabilitation hospital., were assessed for depression using the Hospital Anxiety and Depression scale (HADS). Blood was drawn for assessment of thyroid axis hormones and the N-amino terminal fragment of the pro-B-type natriuretic peptide (NT-pro BNP). Results: The patients with CAD with depressive symptoms had a higher prevalence of cardiac failure (p = 0.04), higher NT-pro BNP concentrations (p = 0.02), and lower free triiodothyronine (T-3) concentrations (p = 0.04) than patients with CAD but without depressive symptoms. They also showed a strong trend (p = 0.058) toward a higher incidence of the low T-3 syndrome. Higher NT-pro BNP concentrations were related to lower total T-3 concentrations (r = -0.294, p = 0.011) and to higher reverse T-3 concentrations (r = 0.353, p = 0.002). In men, higher scores of depression were related to lower total T-3 concentration (r = -0.289, p = 0.034) and to higher NT-pro BNP concentration (r = 0.380, p = 0.005). Conclusion: These findings suggest that symptoms of depression in patients with CAD are associated with changes in thyroid axis function and with cardiac impairment, especially in men.
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