An uncommon complication of atrial fibrillation

Michael Mallouppas1, Christos Christopoulos1, Will Watson1

  • 1Cardiology Department , Bedford General Hospital , Bedford , UK.

Insights

Coronary embolism, a common cause of heart attack, is often missed. Cardiologists must suspect this diagnosis, especially in patients with new-onset atrial fibrillation, to ensure timely treatment.

Area of Science:

  • Cardiology
  • Vascular Medicine
  • Diagnostic Imaging

Background:

  • Coronary embolism is a significant, yet frequently underdiagnosed, cause of myocardial infarction.
  • Atrial fibrillation is a known risk factor for cardioembolic events.
  • Vigilance for coronary embolism is crucial for cardiologists managing patients with chest pain.

Observation:

  • A 77-year-old male presented with chest pain and newly diagnosed atrial fibrillation.
  • Coronary angiography revealed acute occlusion of the left circumflex artery.
  • Aspiration of a large red thrombus restored coronary blood flow.

Findings:

  • The coronary vessel appeared smooth post-aspiration, with no evidence of plaque rupture or residual lesions.
  • The clinical presentation and angiographic findings strongly suggested a coronary embolus.
  • The source of the embolus was attributed to the patient's new-onset atrial fibrillation.

Implications:

  • This case highlights the importance of considering coronary embolism in patients with acute coronary syndromes and atrial fibrillation.
  • Early diagnosis and intervention, such as thrombus aspiration, can be effective in restoring coronary blood flow.
  • Increased awareness and diagnostic vigilance for coronary embolism are essential in clinical practice.

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