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Published on: April 17, 2021
Role of micronutrients in congestive heart failure: A systematic review of randomized controlled trials
Chandini Valiyakizha Kkeveetil1, Grace Thomas1, Sam Johnson Udaya Chander2
1KG Hospital and Postgraduate Research Institute, Coimbatore, India.
Objectives:
To assess the effect of micronutrients on health outcomes in patients with heart failure.
Materials And Methods:
Only randomized controlled trials testing the effectiveness of different micronutrients either singly or combined versus placebo in heart failure patients were included. We conducted a search in different databases such as Medline from PubMed, Embase and Scopus from Elsevier, and Google Scholar. The keywords used in the search were "Heart Failure" and its cognates, "Micronutrient," "Minerals," and names of individual micronutrients.
Results:
Out of 3288 titles and abstracts reviewed, only 11 trials comprising 529 individuals were found to be appropriate to be included in the final review. It was found that micronutrients, either single or combined, improved the health outcomes of heart failure patients by improving exercise tolerance, functional capacity, left ventricular function, flow-dependent dilation, and inflammatory milieu, thereby improving the quality of life of health failure patients. Certain micronutrients also normalized endothelial dysfunction.
Conclusion:
Overall, this systematic review found sufficient evidence to support a large-scale trial on micronutrient supplementation in patients with heart failure.
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