Anomalous Right Coronary Artery With Interarterial Course: Risk Stratification and Surgical Decision-Making Using
Ujjawal Kumar1,2, Usman Aslam1,3, David L Mancuso1
1Department of Cardiothoracic Surgery, HonorHealth, Scottsdale, USA.
Cureus
|May 27, 2024
Summary
An anomalous right coronary artery (RCA) takeoff, a rare congenital heart condition, can cause chest pain or sudden cardiac death. Computed tomography angiography-derived fractional flow reserve (FFR) aids in assessing its significance and guiding treatment decisions.
Area of Science:
- Cardiology
- Medical Imaging
Background:
- Anomalous right coronary artery (RCA) takeoff, particularly with an interarterial course, is a rare congenital anomaly.
- This condition can lead to myocardial ischemia due to compression between the aorta and pulmonary artery, potentially causing angina or sudden cardiac death, though many patients are asymptomatic.
Observation:
- A 46-year-old female presented with exertional dyspnea and an anomalous RCA takeoff with an interarterial course.
Findings:
- Computed tomography angiography (CTA)-derived fractional flow reserve (FFR) was utilized for risk stratification.
- CTA-derived FFR proved instrumental in assessing the hemodynamic significance of the anomalous RCA course.
- The findings indicated that urgent surgical intervention was not required, allowing for elective scheduling.
Implications:
- CTA-derived FFR is a valuable, minimally invasive tool for evaluating anomalous coronary arteries.
- This technique aids in informed surgical decision-making and patient risk stratification for anomalous RCA.
- It helps in determining the appropriate timing for intervention in cases of anomalous coronary artery takeoff.
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