Fact-sheet: Coronary artery fistula


Updated on 10/11/2024 at 3:44 PM

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Definition

Coronary artery fistula is defined as any communication between a coronary artery and a cardiac chamber or another cardiac vascular structure.

Types:

  • coronary-cameral fistula, between a coronary artery and a cardiac chamber
  • coronary arteriovenous fistula, between a coronary artery and a vein

CT

Coronary CT angiography with cardiac gating: noninvasive method of choice for distinguishing between the different types of coronary artery fistula

  • Coronary-cameral fistula: a coronary artery communicates with a cardiac chamber. Origin: right coronary artery (55%), circumflex artery (35%)
  • Termination: right ventricle (41%), right atrium (26%), left-sided chambers (3-5%)
  • Other fistula types: fistula between a coronary artery and the pulmonary artery
  • Fistula between a coronary artery and a cardiac sinus or vein
  • Fistula between a coronary artery and a bronchial artery
  • Complex coronary artery fistula, with multiple origins and/or terminations communicating in a complex fashion