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Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
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Severe Hyperthyroidism Presenting with Acute ST Segment Elevation Myocardial Infarction.

Dayan Zhou1, Zongjie Qu1, Hao Wang1

  • 1Department of Cardiology, Fifth People's Hospital of Chongqing, Renji Road No. 24, Nanan District, Chongqing 400062, China.

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Summary

Severe hyperthyroidism can mimic acute myocardial infarction, causing chest pain, elevated troponin, and ECG changes. Routine thyroid function tests are recommended for patients presenting with chest pain.

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Area of Science:

  • Cardiology
  • Endocrinology

Background:

  • Acute myocardial infarction (AMI) is a critical condition often diagnosed by elevated cardiac troponin and specific ECG changes.
  • Atypical presentations of AMI can complicate diagnosis and treatment.

Purpose of the Study:

  • To report an unusual case of chest pain mimicking AMI.
  • To investigate the potential link between hyperthyroidism and myocardial injury.

Main Methods:

  • Case report of a 66-year-old female presenting with chest pain.
  • Diagnostic workup included ECG, cardiac troponin levels, coronary angiography, and thyroid function tests.

Main Results:

  • The patient exhibited ECG changes (arched ST segment elevations) and elevated troponin, suggestive of AMI.
  • Coronary angiography revealed a normal coronary arterial system.
  • Thyroid function tests indicated severe hyperthyroidism.

Conclusions:

  • Severe hyperthyroidism can lead to significant myocardial injury and ECG abnormalities resembling AMI.
  • Routine thyroid function testing should be considered in patients with unexplained chest pain and ECG changes.