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External coronary artery compression due to prosthetic valve bacterial endocarditis
Summary
Acute coronary syndromes (ACS) can arise from infective endocarditis. External coronary artery compression, though rare, is a critical cause of ACS in patients with aortic valve abscesses.
Area of Science:
- Cardiology
- Infectious Diseases
- Cardiac Surgery
Background:
- Infective endocarditis (IE) can precipitate acute coronary syndromes (ACS) through various mechanisms.
- These include coronary embolism, ostial obstruction, atherosclerosis, and aortic insufficiency.
- External coronary artery compression by IE complications is a rare but severe cause.
Observation:
- A case of ACS in a patient with a bioprosthetic aortic valve abscess is presented.
- Coronary angiography showed no complete occlusion but diffuse tapering of the proximal left coronary system.
- The patient had a recent unremarkable catheterization, suggesting a non-atherosclerotic cause.
Findings:
- External compression of the left coronary artery by the aortic root abscess was identified as the most likely cause of myocardial ischemia.
- Surgical confirmation supported external compression as the etiology.
- This highlights a rare presentation of ACS secondary to IE complications.
Implications:
- External coronary artery compression should be considered in the differential diagnosis of ACS in patients with infective endocarditis and aortic valve complications.
- Coronary angiography can be a valuable diagnostic tool for identifying this condition.
- Early recognition and management are crucial for improving outcomes in these rare but lethal cases.
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