Coronary artery disease and depression.
Michael J Zellweger1, Remo H Osterwalder, Wolf Langewitz
1Cardiology Department, University Hospital, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland. mzellweger@uhbs.ch
Coronary artery disease (CAD) and depression are common, impacting quality of life and healthcare costs. While depression treatment improves patient well-being, its effect on cardiovascular prognosis requires further large-scale clinical trials.
Area of Science:
- Cardiology
- Psychiatry
- Pharmacology
Background:
- Coronary artery disease (CAD) and depression are highly prevalent, significantly reducing patient quality of life and imposing economic burdens.
- Depression is linked to CAD development and poorer outcomes due to factors like poor medication adherence, endothelial dysfunction, and altered heart rate variability.
- Emerging evidence suggests depression is an independent risk factor for cardiac events in both general and established CAD populations, especially post-myocardial infarction.
Purpose of the Study:
- To review the relationship between depression and coronary artery disease (CAD).
- To evaluate the impact of depression treatment on cardiovascular prognosis.
- To discuss pharmacological options for treating depression in patients with comorbid CAD.
Main Methods:
- Literature review of studies investigating the link between depression and CAD.
- Analysis of evidence regarding the effect of depression treatment on cardiovascular outcomes.
- Assessment of antidepressant medication safety and efficacy in CAD patients.
Main Results:
- Depression treatment improves quality of life but has not definitively improved cardiovascular prognosis in CAD patients.
- Selective serotonin reuptake inhibitors (SSRIs) are generally preferred over tricyclic antidepressants for comorbid CAD due to better tolerability and fewer cardiovascular side effects.
- Hypericum perforatum (St. John's wort) may interact dangerously with cardioactive drugs, necessitating caution.
Conclusions:
- Depression is an independent risk factor for cardiac events, underscoring the need for integrated care.
- While depression treatment enhances quality of life, its impact on cardiovascular prognosis remains uncertain, warranting large-scale clinical trials.
- Careful selection of antidepressants, favoring SSRIs and cautioning against St. John's wort interactions, is crucial for managing comorbid depression in CAD patients.
Related Concept Videos
Depression: Overview
Coronary Artery Disease I: Introduction
Coronary Artery Disease II: Pathophysiology
Coronary Artery Disease III: Clinical Manifestations
Coronary Artery Disease IV: Preventive Measures
Depressive Disorders: MDD and Dysthymia


