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JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
Vitamin D Status in Different Stages of Disease Severity in Dogs with Chronic Valvular Heart Disease.
Journal of Veterinary Internal Medicine 2015 November
BACKGROUND: In humans with heart disease, vitamin D deficiency is associated with disease progression and a poor prognosis. A recent study showed that serum 25-hydroxyvitamin D [25(OH)D] concentration, the hallmark of vitamin D status, was lower in dogs with heart failure than in normal dogs, and a low concentration was associated with poor outcome in dogs with heart failure.
OBJECTIVES: To elucidate the vitamin D status of dogs with chronic valvular heart disease (CVHD) at different stages of disease severity.
ANIMALS: Forty-three client-owned dogs with CVHD.
METHODS: In this cross-sectional study, dogs were divided into 3 groups (14 dogs in Stage B1, 17 dogs in Stage B2, and 12 dogs in Stage C/D) according to ACVIM guidelines. Dogs underwent clinical examination including echocardiography. Serum 25(OH)D concentrations were measured in each dog.
RESULTS: Serum 25(OH)D concentration was significantly lower in Stage B2 (median, 33.2 nmol/L; range, 4.9-171.7 nmol/L) and C/D (13.1 nmol/L; 4.9-58.1 nmol/L) than in Stage B1 (52.5 nmol/L; 33.5-178.0 nmol/L) and was not significantly different between Stage B2 and Stage C/D. Among clinical variables, there were significant negative correlations between 25(OH)D concentration and both left atrial-to-aortic root ratio and left ventricular end-diastolic diameter normalized for body weight.
CONCLUSIONS AND CLINICAL IMPORTANCE: These results indicate that vitamin D status is associated with the degree of cardiac remodeling, and the serum 25(OH)D concentration begins to decrease before the onset of heart failure in dogs with CVHD.
OBJECTIVES: To elucidate the vitamin D status of dogs with chronic valvular heart disease (CVHD) at different stages of disease severity.
ANIMALS: Forty-three client-owned dogs with CVHD.
METHODS: In this cross-sectional study, dogs were divided into 3 groups (14 dogs in Stage B1, 17 dogs in Stage B2, and 12 dogs in Stage C/D) according to ACVIM guidelines. Dogs underwent clinical examination including echocardiography. Serum 25(OH)D concentrations were measured in each dog.
RESULTS: Serum 25(OH)D concentration was significantly lower in Stage B2 (median, 33.2 nmol/L; range, 4.9-171.7 nmol/L) and C/D (13.1 nmol/L; 4.9-58.1 nmol/L) than in Stage B1 (52.5 nmol/L; 33.5-178.0 nmol/L) and was not significantly different between Stage B2 and Stage C/D. Among clinical variables, there were significant negative correlations between 25(OH)D concentration and both left atrial-to-aortic root ratio and left ventricular end-diastolic diameter normalized for body weight.
CONCLUSIONS AND CLINICAL IMPORTANCE: These results indicate that vitamin D status is associated with the degree of cardiac remodeling, and the serum 25(OH)D concentration begins to decrease before the onset of heart failure in dogs with CVHD.
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