Surgical correction of left coronary artery origin from the right coronary artery

Area of Science:

• Cardiology
• Cardiac Surgery
• Diagnostic Imaging

Background:

• Anomalous origin of the coronary arteries is a rare congenital heart defect.
• Left main coronary artery anomalies can present with diverse clinical symptoms, including angina pectoris.
• Understanding the mechanism of ischemia in these anomalies is crucial for patient management.

Observation:

• A patient presented with limiting angina pectoris due to anomalous origin of the left coronary artery from the right coronary artery with a retroaortic course.
• No coronary atherosclerosis, myocardial bridging, or aortopulmonary compression was identified.
• Positron emission tomography and fractional flow reserve confirmed myocardial ischemia in the left anterior descending territory.

Findings:

• Surgical coronary reimplantation successfully relieved the patient's myocardial ischemia and angina.
• The case highlights a non-atherosclerotic cause of coronary artery anomaly-induced ischemia.
• Detailed investigation elucidated the specific mechanism of ischemia in this unique anatomical variation.

Implications:

• This case underscores the importance of considering anomalous coronary artery origins in patients with unexplained angina.
• Surgical intervention can be effective in managing ischemia caused by coronary artery anomalies.
• Further research into the hemodynamics of anomalous coronary arteries may improve diagnostic and therapeutic strategies.