Hypocalcemic cardiac failure in the emergency department

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Katrina Hurley1, Doug Baggs

  • 1Department of Emergency Medicine, Dalhousie University, Halifax, Nova Scotia, Canada.

The Journal of Emergency Medicine
|February 15, 2005
PubMed

Insights

Severe hypocalcemia can cause heart failure, a rare but reversible condition. Prompt diagnosis and calcium level correction are crucial for improving cardiac function in affected patients.

Area of Science:

  • Cardiology
  • Endocrinology

Background:

  • Hypocalcemia is a condition characterized by abnormally low calcium levels in the blood.
  • Primary idiopathic hypoparathyroidism is a rare disorder where the parathyroid glands do not produce enough parathyroid hormone, leading to hypocalcemia.

Observation:

  • A 73-year-old male presented with heart failure symptoms.
  • Laboratory tests revealed severe hypocalcemia, with a total calcium level of 5.36 mg/dL (1.34 mmol/L).
  • The patient's condition was secondary to primary idiopathic hypoparathyroidism.

Findings:

  • Echocardiogram demonstrated impaired ventricular function, consistent with heart failure.
  • Following correction of serum calcium levels, ventricular function showed significant improvement.
  • Heart failure, though rarely associated with hypocalcemia, is a recognized reversible consequence.

Implications:

  • Hypocalcemia should be considered in the differential diagnosis of heart failure, especially in patients with prolonged QT intervals and symptoms like paresthesias.
  • Early detection and management of hypocalcemia can lead to the reversal of cardiac dysfunction.
  • This case highlights the critical role of calcium homeostasis in maintaining cardiovascular function.

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