Quadriostial Origin of the Coronary Arteries: A Case Report

Hunter Simonsen1, Kaden Taylor1, Luke Brogan1

  • 1Medicine, Kansas City University of Medicine and Biosciences, Joplin, USA.

Cureus
|April 16, 2025
PubMed

Insights

This case report details a rare quadriostial coronary anomaly where four separate coronary artery ostia were found. This unusual anatomy, involving the right coronary artery and left circumflex artery origins, was incidentally discovered during a cardiac catheterization.

Area of Science:

  • Cardiology
  • Anatomical Variations
  • Medical Imaging

Background:

  • Coronary artery anomalies are relatively uncommon but can lead to significant cardiovascular events.
  • Accurate identification of coronary anatomy is crucial for guiding cardiac interventions and surgical planning.
  • Atypical origins of coronary arteries can predispose individuals to myocardial ischemia or infarction.

Observation:

  • A 75-year-old male with hypertension and peripheral vascular disease underwent coronary angiography due to an abnormal stress test.
  • The coronary angiogram revealed an unusual quadriostial anatomy with four separate coronary artery ostia.
  • Specifically, two ostia originated from the right coronary cusp, supplying the right coronary artery and left anterior descending artery, while two originated from the left coronary cusp, supplying the left circumflex and marginal arteries.

Findings:

  • The patient presented with a rare quadriostial coronary artery anomaly, a significant deviation from typical coronary artery origins.
  • Despite the anomalous anatomy, the patient remained asymptomatic, highlighting the variable clinical presentation of such conditions.
  • The findings underscore the importance of detailed coronary imaging to detect and characterize complex coronary artery variations.

Implications:

  • This case highlights the importance of recognizing and understanding rare coronary artery anomalies during diagnostic procedures.
  • Knowledge of such anatomical variations is essential for interventional cardiologists and cardiac surgeons to prevent iatrogenic complications.
  • Further research into the long-term clinical outcomes and management strategies for quadriostial coronary anatomy is warranted.

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