Normal Parathyroid Hormone Activity in Hypercalcemia Associated with Thrombotic Thrombocytopenic Purpura

Joseph Michaeli, Gilles Lugassy, Mayer Bassan

Research output: Contribution to journalLetterpeer-review

2 Scopus citations

Abstract

To the Editor: The letter by Carmosino and Feffer in the December 2 issue1 described two patients who had hypercalcemia after receiving plasma infusions for thrombotic thrombocytopenic purpura (TTP). The authors attributed the hypercalcemia to a rise in total serum protein and a compensatory rise in parathyroid hormone activity to maintain a normal level of free calcium. We wish to report a similar case of TTP in which there was no increase in parathyroid hormone activity. A 55-year-old man was hospitalized with fever, thrombocytopenia, microangiopathic hemolytic anemia, fluctuating neurologic disturbances, and impaired renal function. He responded promptly to treatment.

Original languageEnglish
Pages (from-to)904
Number of pages1
JournalNew England Journal of Medicine
Volume308
Issue number15
DOIs
StatePublished - 14 Apr 1983
Externally publishedYes

ASJC Scopus subject areas

  • Medicine (all)

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