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Published on: February 8, 2019
Myocardial infarction due to giant cell arteritis: a case report and literature review
Long-Wei Lin1, Shoei-Shen Wang, Chia-Tung Shun
1Department of Pathology, College of Medicine, National Taiwan University, Taipei, Taiwan.
Insights
Giant cell arteritis, a rare cause of myocardial infarction, typically affects cranial arteries. This case highlights coronary artery involvement leading to heart failure and the need for considering this condition in heart attack diagnoses.
Area of Science:
- Cardiology
- Rheumatology
- Pathology
Background:
- Giant cell arteritis (GCA) primarily affects cranial arteries, with rare instances reported in coronary arteries.
- Atypical chest pain can be an initial symptom, necessitating a broad differential diagnosis.
Observation:
- A 51-year-old woman presented with atypical chest pain, indicative of potential cardiac compromise.
- Diagnostic imaging revealed left ventricular dilation and global hypokinesia, suggesting advanced heart dysfunction.
Findings:
- The patient developed progressive heart failure despite medical management, ultimately requiring a heart transplant.
- Pathologic examination confirmed myocardial infarction caused by coronary artery giant cell arteritis.
Implications:
- Coronary artery giant cell arteritis is an uncommon but critical cause of myocardial infarction.
- Clinicians should consider GCA in the differential diagnosis of myocardial infarction, especially in atypical presentations.
Abstract:
Giant cell arteritis occurs mainly in the cranial arteries, especially in the temporal area, and rarely in the coronary arteries. Here, we present a case of coronary artery giant cell arteritis in a 51-year-old woman who complained of atypical chest pain. Radionuclide angiography showed dilated left ventricle with global hypokinesia. Despite medical treatment, she suffered progressive heart failure and finally was given a heart transplant. The pathologic examination revealed myocardial infarction due to coronary giant cell arteritis. Unusual giant cell arteritis should be considered in the differential diagnoses of myocardial infarction.
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