| Autor: |
Asha P. Robertson, MD, Ari Weinreb, MD, PhD, Jane E. Weinreb, MD |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
AACE Clinical Case Reports, Vol 3, Iss 4, Pp 349-352 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
2376-0605 |
| DOI: |
10.4158/EP161608.CR |
| Popis: |
ABSTRACT: Objective: Sarcoidosis is commonly complicated by hypercalcemia due to extrarenal 1,25-dihydroxyvitamin D and parathyroid hormone–related peptide production. Bisphosphonates are often given to these patients to protect bone during steroid treatment; this is frequently preceded by vitamin D supplementation, both to prevent hypocalcemia and maximize bone mineralization. However, in sarcoidosis, vitamin D supplementation may augment the risk of hypercalcemia. We present a patient with steroid-treated sarcoidosis in whom high-dose vitamin D supplementation resulted in symptomatic hypercalcemia. Review of the literature provides insights regarding vitamin D supplementation for these patients and may be used to inform future guidelines and management.Methods: Case report and literature review.Results: An 82-year-old man with steroid-treated sarcoidosis and osteopenia presented with classic symptoms of hypercalcemia after high-dose vitamin D supplementation. The hypercalcemia responded to hydration, withholding of vitamin D, and high-dose steroid treatment. Most studies evaluating vitamin D supplementation in sarcoid patients reveal increases in calcium and 1,25-dihydroxyvitamin D levels with high-dose vitamin D supplementation, with some patients developing frank hypercalcemia. In contrast, a single large study using low-dose vitamin D supplementation found no increased hypercalcemia risk and revealed evidence of disease modulation.Conclusion: High-dose vitamin D supplementation in sarcoid patients is complicated by increased levels of calcium and 1,25-dihydroxyvitamin D, with an associated increased risk of hypercalcemia. In contrast, supplementation with low-dose vitamin D does not appear to increase risk of hypercalcemia and may have a positive effect on sarcoid disease activity.Abbreviation: PTHrP parathyroid hormone–related peptide |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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