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Unstable angina with normal coronary angiography in hyperthyroidism: a case report
Tsung-Hsien Lin1, Ho-Ming Su, Wen-Chol Voon
1Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
The Kaohsiung Journal of Medical Sciences
|March 10, 2005
Summary
Subclinical hyperthyroidism can manifest as chest pain, even at rest. Early diagnosis and treatment with anti-thyroid agents resolved symptoms in a patient with this condition.
Area of Science:
- Cardiology
- Endocrinology
Background:
- Hyperthyroidism increases myocardial oxygen demand, potentially causing angina due to supply-demand imbalance.
- Subclinical hyperthyroidism typically does not present with chest pain at rest.
Observation:
- A 58-year-old male experienced frequent chest tightness and ECG changes while at rest.
- Coronary angiography revealed no significant coronary artery lesions.
Findings:
- Laboratory tests confirmed subclinical hyperthyroidism as the cause of the patient's symptoms.
- Treatment with anti-thyroid agents led to successful symptom resolution.
Implications:
- This case highlights that typical chest pain can be an initial symptom of subclinical hyperthyroidism.
- Clinicians should consider hyperthyroidism in the differential diagnosis of unexplained chest pain, even in its subclinical form.