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Abstract Title:

Effects of six months of vitamin D supplementation in patients with heart failure: a randomized double-blind controlled trial.

Abstract Source:

Nutr Metab Cardiovasc Dis. 2014 Aug ;24(8):861-8. Epub 2014 Mar 5. PMID: 24787908

Abstract Author(s):

A Dalbeni, G Scaturro, M Degan, P Minuz, P Delva

Article Affiliation:

A Dalbeni

Abstract:

BACKGROUND AND AIM: Low plasma vitamin D levels have been associated with heart failure (HF). This research attempts to explain the role of vitamin D supplementation on myocardial function in elderly patients with HF.

METHODS AND RESULTS: Twenty-three chronic HF patients were randomized in a small parallel group, double-blind, placebo-controlled trial. All patients, with a mean age of 74 years and vitamin D levels<30 ng/mL, received 800,000 IU (4000 IU/daily) of cholecalciferol or placebo for 6 months. The outcomes measured at baseline and after 6 months were ejection fraction (EF) and other echocardiography parameters, carboxyterminal propeptide of procollagen type I (PIP), natriuretic peptides, lipid profile, renin, parathyroid hormone, blood pressure, and body mass index (BMI). In 13 patients under active treatment for 6 months, mean plasma 25-hydroxy vitamin D concentrations (15.51 vs. -1.40 ng/mL, p<0.001) and plasma calcium (from 9.3 to 9.6 mmol/L, p<0.05) increased significantly. However, other biomarkers of bone metabolism did not differ between the treatment and placebo groups. EF increased significantly in the intervention group (6.71 vs. -4.3%; p<0.001), and the serum concentration of PIP increased only in the placebo group after 6 months (1140.98 vs. -145 mcg/L; p<0.05). Systolic blood pressure was lower after 6 months of cholecalciferol treatment (from 129.6 to 122.7 mm Hg, p<0.05). No significant variations were observed for other parameters.

CONCLUSIONS: Six months of vitamin D supplementation significantly improves EF in elderly patients with HF and vitamin D deficiency.

Study Type : Human Study

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