Related Experiment Video
Updated: May 9, 2026

An Unpredictable Chronic Mild Stress Protocol for Instigating Depressive Symptoms, Behavioral Changes and Negative Health Outcomes in Rodents
Published on: December 2, 2015
Comorbid depression in heart failure
1Department of Internal Medicine I, University Hospital and University of Würzburg, Würzburg, Germany.
Insights
Heart failure patients have higher rates of depression, impacting outcomes and costs. While screening is possible, antidepressants haven't improved major clinical endpoints in heart failure.
Area of Science:
- Cardiology
- Psychiatry
- Health Services Research
Background:
- Heart failure (HF) is a prevalent condition with significant morbidity, mortality, and healthcare costs.
- Depression is notably more common in HF patients, occurring up to five times more frequently than in the general population.
- Comorbid depression exacerbates HF outcomes, increasing mortality risk, healthcare expenditures, and diminishing quality of life.
Purpose of the Study:
- To highlight the increased prevalence of depression in heart failure patients.
- To discuss the mediators contributing to the adverse effects of comorbid depression in HF.
- To evaluate the utility of screening tools and the impact of antidepressants on clinical outcomes.
Main Methods:
- Review of literature on heart failure and comorbid depression.
- Discussion of potential biological, behavioral, and psychosocial mediators.
- Assessment of screening instruments like the Patient Health Questionnaire-2 (PHQ-2).
- Evaluation of the evidence for antidepressant efficacy in HF patients.
Main Results:
- Depression is highly prevalent in heart failure patients, significantly worsening their prognosis.
- Biological, behavioral, and psychosocial factors likely mediate the negative impact of depression.
- Screening tools like the PHQ-2 can identify at-risk individuals.
- Antidepressants may improve psychological well-being but have not shown benefits for major clinical endpoints in HF.
Conclusions:
- Depression is a critical comorbidity in heart failure that requires attention.
- Effective screening for depression in HF patients is feasible.
- Current evidence does not support the use of antidepressants for improving hard clinical outcomes in heart failure.
Abstract:
Heart failure (HF) is highly prevalent and associated with adverse outcomes and high costs. Compared with the general population, depression is up to five times more common in HF patients. Comorbid depression increases morbidity and mortality risk and health-care expenditures even further and decreases quality of life. Possible, often interrelated, mediators of these effects include biological, behavioral, and psychosocial factors. Screening instruments such as the self-administered PHQ-2 facilitate detection of patients at risk. Although antidepressants may improve psychological well-being, no positive effects on hard clinical endpoints have been demonstrated to date.
Related Concept Videos
Heart Failure III: Clinical Manifestations
Heart Failure II: Pathophysiology
Pathophysiology of Heart Failure
Heart Failure I: Introduction
Heart Failure V: Medical Management
Heart Failure VI: Adjunct Therapies