Background
Antidepressants are commonly prescribed medications used in primary care. The cardiovascular safety profile of anti-depressant medications, in terms of subclinical atherosclerosis, is under-examined.
Methods
6,814 participants in the Multi-Ethnic Study of Atherosclerosis (MESA) were examined. At baseline, the mean age was 62 years with four race/ethnic groups represented: European-(38%), Hispanic-(23%), African-(28%) and Chinese-Americans (11%). Antidepressants were sub-grouped as serotonin reuptake inhibitors (SSRIs), tricyclic antidepressants (TCAs), serotonin-norepinephrine reuptake inhibitors (SNRIs), and “other” (bupropion, nefazodone, trazodone, mirtazapine). After adjusting for potential confounders, we estimated the association between antidepressant use and the following measures of subclinical atherosclerosis: coronary artery calcium (CAC), the ankle-brachial index (ABI), and carotid intima-media thickness (cIMT), both cross-sectionally and prospectively.
Results
A total of 324 participants were exposed to SSRIs, 88 to TCAs, 41 to SNRIs and 123 to “other” antidepressants. For CAC incidence, the fully-adjusted longitudinal analyses revealed no consistent associations with SSRIs[RR: 0.99(0.71, 1.37)], SNRIs[RR=0.49(0.13, 1.86)], TCAs[RR=0.94(0.50, 1.77)], other antidepressant [RR=0.87(0.73, 1.03)] exposure and subclinical disease. Similar null results were obtained in the cross-sectional and longitudinal exposure to antidepressants with changes in baseline CAC>0, ABI and cIMT.
Conclusions
The results of the current study do not support an association between antidepressants and subclinical atherosclerosis.