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Coronary Vasospasm-Induced Myocardial Infarction: An Uncommon Presentation of Unrecognized Hyperthyroidism

Basma Ataallah1, Barjinder Buttar1, Alan Kaell1

  • 1Department of Internal Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Mather Hospital, Port Jefferson, NY 11777, USA.

Journal of Medical Cases
|August 26, 2021
PubMed

Insights

Hyperthyroidism can cause heart problems, including heart attacks from coronary vasospasm. This case highlights a patient with undiagnosed thyrotoxicosis who experienced an acute myocardial infarction due to this condition.

Area of Science:

  • Cardiology
  • Endocrinology

Background:

  • Hyperthyroidism is a condition involving an overactive thyroid gland.
  • Cardiac manifestations of hyperthyroidism commonly include tachycardia, atrial fibrillation, and high-output heart failure.

Observation:

  • Rarely, hyperthyroidism has been linked to coronary vasospasm and myocardial infarction (MI).
  • Many reported cases involve patients with a known history of hyperthyroidism preceding cardiac events.

Findings:

  • This report details a case of a female patient with unrecognized thyrotoxicosis.
  • The patient presented with an acute myocardial infarction (MI) attributed to coronary vasospasm.

Implications:

  • Undiagnosed thyrotoxicosis can precipitate acute coronary events like MI.
  • Clinicians should consider thyroid dysfunction in patients presenting with unexplained coronary vasospasm and MI.

Keywords:
Coronary vasospasmEndocrinologyGraves’ diseaseHyperthyroidismMyocardial infarctionThyroid diseaseThyrotoxicosis

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