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Case report. Congestive heart failure complicating the hungry bone syndrome

J M Falko, C A Bush, M Tzagournis

    The American Journal of the Medical Sciences
    |January 1, 1976
    PubMed

    Insights

    Hungry bone syndrome after parathyroidectomy can cause heart failure due to low calcium and magnesium. Supplementing calcium and magnesium effectively treated the patient's congestive heart failure and pulmonary congestion.

    Area of Science:

    • Endocrinology
    • Cardiology
    • Nephrology

    Background:

    • Hungry bone syndrome (HBS) is a potential complication following parathyroidectomy for hyperparathyroidism.
    • HBS is characterized by rapid shifts of calcium and phosphate into bone, leading to hypocalcemia and hypomagnesemia.
    • Cardiac complications, including congestive heart failure, are rarely reported in HBS.

    Purpose of the Study:

    • To report a case of congestive heart failure in a patient with HBS.
    • To investigate the role of hypocalcemia and hypomagnesemia in the pathogenesis of heart failure during HBS.
    • To describe the successful management of HBS-induced heart failure with calcium and magnesium supplementation.

    Main Methods:

    • Case report of a patient who underwent parathyroidectomy for hyperparathyroidism.
    • Clinical monitoring of cardiovascular status, including heart size and pulmonary congestion.
    • Biochemical assessment of serum calcium and magnesium levels.
    • Treatment with intravenous and oral calcium and magnesium supplementation.

    Main Results:

    • The patient developed symptomatic congestive heart failure, likely secondary to severe hypocalcemia and hypomagnesemia.
    • Cardiovascular symptoms, including reduced heart size and resolution of pulmonary congestion, improved significantly with calcium and magnesium administration.
    • Normalization of calcium and magnesium levels correlated with clinical improvement.

    Conclusions:

    • Hypocalcemia and hypomagnesemia associated with HBS can precipitate or exacerbate congestive heart failure.
    • Prompt and adequate supplementation of calcium and magnesium is crucial for managing cardiac dysfunction in HBS.
    • This case highlights a potential mechanism for HBS-induced heart failure and emphasizes the importance of electrolyte management.

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