Infective endocarditis related to a coronary artery fistula with an unusual localization and ectatic coronary

Demet Menekse Gerede1, Aynur Acibuca, Caglar Uzun

  • 1Department of Cardiology, Ankara University School of Medicine, Ankara, Turkey.

Insights

Coronary artery fistulas (CAF) are rare but can cause serious heart issues. This case highlights an unusual CAF linked to infective endocarditis, requiring surgical treatment for both conditions.

Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Infectious Diseases

Background:

  • Coronary artery fistulas (CAF) are uncommon congenital or acquired heart abnormalities.
  • CAFs can lead to significant complications including heart failure and cardiac tamponade.
  • CAF has been anecdotally linked to bacterial endocarditis.

Observation:

  • A 31-year-old male presented with native valve infective endocarditis.
  • The endocarditis was associated with an unusual coronary artery fistula (CAF) between the circumflex artery and the left ventricle.
  • The patient also exhibited giant coronary arteries, with the circumflex and left main coronary arteries measuring 19 mm in diameter.

Findings:

  • Computed tomography angiography and transesophageal echocardiography were used to image the giant coronary arteries and the CAF.
  • Surgical valve intervention was necessary due to antibiotic-resistant vegetations.
  • The coronary artery fistula was surgically repaired concurrently with valve surgery.

Implications:

  • This case underscores the importance of considering CAF in patients presenting with infective endocarditis.
  • Unusual CAF presentations, even with giant coronary arteries, require tailored surgical management.
  • Successful surgical treatment of both infective endocarditis and CAF can be achieved simultaneously.

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