Anomalous Left Coronary Artery Arising From Right Coronary Sinus in the Setting of Anterior STEMI

Area of Science:

• Cardiology
• Congenital Heart Disease
• Interventional Cardiology

Background:

• Coronary artery anomalies are rare congenital conditions that can predispose individuals to myocardial infarction.
• Anomalous origin of both coronary arteries from a single ostium is exceptionally uncommon.

Observation:

• A 55-year-old male presented with acute anterior ST-segment elevation myocardial infarction.
• Emergency coronary angiography revealed a rare anomaly: both coronary systems originated from the right coronary sinus.

Findings:

• The patient had a critical stenosis in the proximal left anterior descending artery, identified as the culprit lesion.
• Percutaneous coronary intervention with stenting was successfully performed on the left anterior descending artery.

Implications:

• This case highlights the importance of recognizing rare coronary anomalies in the context of myocardial infarction.
• Such anatomical variations necessitate tailored interventional strategies and may have implications for long-term cardiovascular risk stratification.