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Sinus node dysfunction secondary to hyperparathyroidism.

Atman P Shah1, Angela Lopez, Robin Y Wachsner

  • 1University of California, Los Angeles School of Medicine and West Los Angeles VA, Department of Cardiology, Los Angeles, California 90073, USA. apshah73@ucla.edu

Journal of Cardiovascular Pharmacology and Therapeutics
|August 17, 2004
PubMed
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Symptomatic sinus node dysfunction was observed in two patients with hypercalcemia caused by hyperparathyroidism. This rare association between hypercalcemia and sinus node dysfunction has not been previously documented in medical literature.

Area of Science:

  • Cardiology
  • Endocrinology
  • Pathophysiology

Background:

  • Sinus node dysfunction (SND) is a common cause of cardiac arrhythmias.
  • Hypercalcemia, often associated with hyperparathyroidism, can cause various systemic symptoms.

Observation:

  • Two patients presented with symptomatic sinus node dysfunction.
  • Both patients had underlying hypercalcemia secondary to hyperparathyroidism.

Findings:

  • The study identified a potential link between hypercalcemia due to hyperparathyroidism and the development of sinus node dysfunction.
  • Literature review confirmed no prior reports of this specific clinical presentation.

Implications:

  • This finding suggests that hypercalcemia should be considered in the differential diagnosis of sinus node dysfunction.

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  • Further research is warranted to elucidate the mechanisms underlying this association and its clinical significance.