Intra-atrial course of the right coronary artery

Dr Craig Hacking et al.

Intra-atrial course of the right coronary artery is an uncommon anatomic variation in the course of the right coronal artery, usually involving the mid and distal segments, where the vessel partially or completely courses through the right atrial chamber.

It is usually asymptomatic and clinically occult but is of radiological significance in any fluoroscopic procedure requiring a wire or catheter to be passed through the right atrium, in which it is prone to injury causing right coronal artery territory ischaemia or infarction. It may also be injured during tricuspid valve surgery, coronary artery catheterisation and bypass grafting.

Congenital coronary artery anomalies
Share article

Article information

rID: 36571
Systems: Vascular, Cardiac
Section: Anatomy
Synonyms or Alternate Spellings:
  • Intra-atrial course of the RCA
  • Intra-atrial course of RCA
  • Intraatrial course of the RCA

Support Radiopaedia and see fewer ads

Cases and figures

  • Drag
    Case 1
    Drag here to reorder.
  • Updating… Please wait.
    Loadinganimation

    Alert accept

    Error Unable to process the form. Check for errors and try again.

    Alert accept Thank you for updating your details.