AVR in patients with anomalous course of the circumflex artery without prosthetic downsizing

Area of Science:

• Cardiovascular Surgery
• Cardiac Anatomy
• Interventional Cardiology

Background:

• Anomalous origin of the left circumflex coronary artery (ALCX) from the right coronary artery (RCA) is a rare coronary artery anomaly.
• This anomaly typically encircles the aortic annulus and can be an incidental finding.
• However, ALCX can pose significant challenges during aortic valve and root procedures.

Purpose of the Study:

• To describe an effective operative strategy for managing anomalous left circumflex coronary artery during aortic valve/root surgery.
• To present the use of three different prostheses without valve downsizing in such cases.

Main Methods:

• Retrospective analysis of patients with ALCX undergoing aortic valve/root procedures.
• Detailed description of the surgical technique employed, focusing on managing the anomalous coronary artery.
• Evaluation of the use of three distinct prosthetic types without necessitating valve downsizing.

Main Results:

• Successful surgical management of ALCX in all reported cases.
• No valve downsizing was required, preserving optimal valve size.
• The described operative strategy facilitated safe and effective aortic valve/root repair/replacement in the presence of ALCX.

Conclusions:

• Anomalous origin of the left circumflex coronary artery can be safely managed during aortic valve/root surgery.
• The presented operative strategy, utilizing specific prostheses without valve downsizing, offers a viable solution.
• Careful surgical planning and execution are crucial for optimal outcomes in patients with this coronary anomaly.