Hypercalcemia Induced by Excessive Intake of Calcium Supplement, Presenting Similar Findings of Primary Hyperparathyroidism
2004; Japan Endocrine Society; Volume: 51; Issue: 6 Linguagem: Inglês
10.1507/endocrj.51.557
ISSN1348-4540
AutoresYoshiyuki Kato, Kanji Sato, Akira Sata, Kazue OMORI, Kishiko Nakajima, Kotaro Tokinaga, Takao Obara, Kazue Takano,
Tópico(s)Bone health and osteoporosis research
ResumoA 31-year-old woman had ureterolithiasis related to hypercalcemia, and when she was admitted to our hospital ultrasonography and technetium-99 m sestamibi scintigraphy did not detect parathyroid abnormalities. Serum concentrations of calcium and intact parathyroid hormone were 9.7 mg/dl and 153 pg/ml, respectively, but subsequently increased to 13.5 mg/dl and decreased to 10 pg/ml, respectively. Diagnostic interview revealed that she had been taking excessive calcium supplements of 3,000˜5,000 mg/day because she was worried about developing osteoporosis. Her hypercalcemia was cured after she stopped taking the supplements. The present case indicates that calcium supplementation of more than 2,500 mg/day elicits adverse effects on body mineral balance. Clear indications of the upper limits to supplements should be made known to the consumers.
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