A patient with severe hypercalcemia in multiple organ dysfunction syndrome: Role of elevated circulating 1α,25(OH)2vitamin D levels

Authors

  • Junichiro James Kazama,

    Corresponding author
    1. Division of Critical and Intensive Care Medicine, Niigata University Medical and Dental Hospital, Niigata, Japan
    2. Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
    • Division of Nephrology and Intensive Care Medicine, Niigata University Medical and Dental Hospital, 1-754 Asahimachi-Dori, Niigata, Niigata 951-8510, Japan.
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  • Takashi Yamamoto,

    1. Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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  • Hiroshi Oya,

    1. Division of Critical and Intensive Care Medicine, Niigata University Medical and Dental Hospital, Niigata, Japan
    2. Division of Digestive Surgery, Niigata University Medical and Dental Hospital, Niigata, Japan
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  • Satoshi Yamamoto,

    1. Division of Digestive Surgery, Niigata University Medical and Dental Hospital, Niigata, Japan
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  • Yoshinobu Sato,

    1. Division of Digestive Surgery, Niigata University Medical and Dental Hospital, Niigata, Japan
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  • Junko Sakurada,

    1. Division of Cellular and Molecular Pathology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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  • Tadayuki Honda,

    1. Division of Critical and Intensive Care Medicine, Niigata University Medical and Dental Hospital, Niigata, Japan
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  • Hiroshi Endoh,

    1. Division of Critical and Intensive Care Medicine, Niigata University Medical and Dental Hospital, Niigata, Japan
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  • Ichiei Narita

    1. Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Abstract

A 54-year-old man was transferred to our ICU because of systemic inflammatory response syndrome (SIRS) and multiple organ dysfunction syndrome (MODS). He died after 38 days of intensive care. During treatment, his serum calcium (Ca) levels continued to increase and reached 3.95 mmol/L, while the ionized Ca levels reached 2.30 mmol/L before his death. He presented with severe kidney injury, pancreatitis, and hemorrhagic gastric erosion that worsened his prognosis; these were possibly associated with the hypercalcemia. His circulating 1α,25-dihydroxyvitamin D [1,25(OH)2D] level was elevated (75.7 to 204 pg/mL), whereas the levels of 25-hydroxyvitamin D, parathyroid hormone, and parathyroid hormone–related peptide were not. Liver histology revealed immunoreactivity for 25-hydroxyvitamin D 1α-hydroxylase (CYP27B1) in some of the hepatocytes, in which the localization pattern was similar to that of lysozyme-positive hepatocytes. Our ICU has previously encountered 22 similar MODS patients who presented with hypercalcemia over the last 8 years. SIRS with severe kidney and liver injuries are common clinical findings in hypercalcemic patients with MODS. Of the 23 hypercalcemic MODS patients, including the present patient, 17 had circulating 1,25(OH)2D levels exceeding 70 pg/mL despite severe kidney injury. Extrarenal activation of CYP27B1 seems to play a role in the development of hypercalcemia in this disease condition. Clinicians need to be aware that severe hypercalcemia may occur in MODS patients. © 2010 American Society for Bone and Mineral Research

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