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[Horton's disease. Coronary localization causing fatal myocardial infarction]
Annales De Medecine Interne
|January 1, 1982
Summary
Giant cell arteritis, a rare cause of death, can affect coronary arteries. Even with treatment, this condition may lead to fatal myocardial infarction.
Area of Science:
- Cardiovascular Pathology
- Rheumatology
- Histopathology
Background:
- Giant cell arteritis (GCA), also known as Horton's disease, is a systemic vasculitis primarily affecting medium and large arteries.
- Coronary artery involvement in GCA is uncommon, and its role as a direct cause of mortality is considered rare.
Observation:
- A 79-year-old female presented with classic symptoms and biopsy-proven temporal arteritis (Horton's disease).
- Following initiation of prednisone therapy, the patient developed tongue necrosis and subsequently experienced a fatal myocardial infarction.
- Autopsy revealed giant cell arteritis in a coronary artery branch adjacent to a recent myocardial infarction.
Findings:
- The case highlights a rare instance where GCA directly caused a fatal myocardial infarction.
- Review of four additional literature cases demonstrated that corticosteroid treatment did not prevent coronary artery involvement or mortality in GCA patients.
- Specific GCA lesions in coronary arteries can be lethal, irrespective of systemic treatment.
Implications:
- This case underscores the critical need for vigilance regarding potential coronary artery involvement in patients diagnosed with giant cell arteritis.
- Early detection and aggressive management strategies may be necessary to mitigate the risk of cardiac complications in GCA.
- Further research is warranted to elucidate the mechanisms and optimal treatment paradigms for coronary vasculitis in Horton's disease.