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High-dose oral vitamin D3 supplementation in rheumatology patients with severe vitamin D3 deficiency

von Restorff, Cord and Bischoff-Ferrari, Heike A. and Theiler, Robert. (2009) High-dose oral vitamin D3 supplementation in rheumatology patients with severe vitamin D3 deficiency. Bone : an international multidisciplinary journal of bone cell biology, physiology and pathology, Vol. 45. pp. 747-749.

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Official URL: http://edoc.unibas.ch/dok/A6004351

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Abstract

OBJECTIVES: Recent large trials indicate that adherence associated with a daily regimen of vitamin D is low and limits anti-fracture efficacy with vitamin D supplementation. The aim of this report is to describe changes of 25-hydroxyvitamin D (25(OH)D) serum concentrations achieved with a single oral dose of 300000 IU vitamin D3. METHODS: Over a course of 4 months, we identified 33 elderly with severe vitamin D deficiency (25(OH)D>25 nmol/l) on admission to acute care. Patients were admitted for musculoskeletal pain, bone disease, or gait abnormalities. The mean age was 80.5 years (SD+/-6.1). All patients were treated with a single oral dose of 300000 IU D3 in combination with 500-1000 mg calcium supplements per day depending on their dietary calcium intake. RESULTS: Baseline mean 25(OH)D serum concentrations were 15 nmol/l (SD+/-5.5). Mean 25(OH)D serum concentrations increased to 81.4 nmol/l (SD+/-29.7) at 3 months (29 patients) and were still 69.0 nmol/l (SD+/-17.9) at 6 months (26 patients). Mean serum calcium levels were 2.24 mmol/l (SD+/-0.11) at baseline, 2.28 mmol/l (SD+/-0.18) at 3 months, and 2.28 mmol/l (SD+/-0.13) at 6 months. Two patients with mild hypercalcemia (2.69 mmol/l) at 3 months had normal values at 6 months. CONCLUSION: Based on our observations, a single oral dose of 300000 IU vitamin D3 raises mean 25(OH)D serum concentrations to the target mean of above 75 nmol/l at 3 months and a mean level of 69 nmol/l at 6 months. As calcium absorption is enhanced with higher 25(OH)D serum concentrations, calcium supplementation may need downward adjustment with this regimen to avoid mild hypercalcemia.
Faculties and Departments:03 Faculty of Medicine > Bereich Medizinische Fächer (Klinik) > Rheumatologie
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Medizinische Fächer (Klinik) > Rheumatologie
UniBasel Contributors:Theiler, Robert S.M.
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Elsevier
ISSN:8756-3282
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:01 Mar 2013 11:14
Deposited On:01 Mar 2013 11:13

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