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The role of vitamin D in chronic heart failure
Ali Pourdjabbar1, Girish Dwivedi, Haissam Haddad
1Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada.
Insights
Vitamin D deficiency is common in congestive heart failure (CHF) and linked to worse outcomes. While potential benefits exist, more research is needed to confirm vitamin D
Area of Science:
- Cardiology
- Endocrinology
- Nutritional Science
Background:
- Congestive heart failure (CHF) presents a significant health challenge, despite advanced treatments.
- Vitamin D deficiency is frequently observed in CHF patients and correlates with adverse outcomes.
- The manuscript reviews the association between vitamin D deficiency and CHF, exploring mechanisms and therapeutic data.
Purpose of the Study:
- To examine the link between vitamin D deficiency and congestive heart failure (CHF).
- To discuss potential underlying mechanisms connecting vitamin D deficiency and CHF.
- To review existing clinical data on vitamin D supplementation in CHF patients.
Main Methods:
- Literature review of evidence linking vitamin D deficiency and CHF.
- Analysis of potential pathophysiological mechanisms.
- Evaluation of clinical trial data on vitamin D supplementation in CHF.
Main Results:
- A strong correlation exists between vitamin D deficiency and increased morbidity/mortality in CHF.
- The renin-angiotensin-aldosterone system and inflammatory cytokines are implicated as mediators.
- Clinical data on vitamin D supplementation show potential benefits but lack large-scale randomized trials.
Conclusions:
- Vitamin D shows promise as a novel therapeutic target for CHF.
- Further research is essential to elucidate mechanisms and confirm the role of vitamin D in CHF management.
- Studies are needed to validate vitamin D measurement and supplementation strategies in CHF patients.
Purpose Of Review:
Despite advanced medical and device-based therapies, congestive heart failure (CHF) remains a major medical problem, associated with significant morbidity and mortality. Vitamin D deficiency is prevalent in CHF and is associated with poor outcomes. In this manuscript we review the evidence linking vitamin D deficiency and CHF and discuss potential mechanisms involved, as well the clinical data on vitamin D supplementation in CHF patients.
Recent Findings:
A clear relationship has been established between Vitamin D deficiency and increased mortality and morbidity in CHF. However, the mechanism involved is not clearly understood. Recent clinical and experimental evidence have identified the renin-angiotensin-aldosterone system and inflammatory cytokines as likely mediators that can lead to poor clinical outcomes via the cardiorenal syndrome. Clinical data on vitamin D supplementation also remain unestablished, with potential clinical benefits recently reported in patients with vitamin D deficiency. Nonetheless, large-scale randomized clinical trials are lacking.
Summary:
Vitamin D is an emerging agent with tremendous potential and may represent a novel target for therapy in CHF. Further studies are needed to identify the mechanism(s) involved in the pathophysiology as well as to adequately examine the role of Vitamin D measurement and supplementation in patients with CHF.
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