Three-Patch Aortic Root Reconstruction With Extended Left Main Coronary Artery Patch Augmentation in Neonates and...

Area of Science:

• Cardiovascular Surgery
• Congenital Heart Disease
• Cardiac Anatomy

Background:

• Left main coronary artery (LMCA) stenosis occurs in ~5% of patients with congenital supravalvular aortic stenosis (SVAS).
• LMCA stenosis in SVAS patients increases the risk of sudden cardiac death.
• Concomitant coronary artery intervention during SVAS repair poses high risks, with varied surgical outcomes reported.

Purpose of the Study:

• To describe a standardized surgical technique for managing congenital SVAS with ostial LMCA stenosis and bilateral outflow tract obstruction.
• To detail the combined approach of extended LMCA patch augmentation and 3-patch aortic root reconstruction (Brom's technique).

Main Methods:

• Retrospective review of patient charts following Institutional Review Board approval.
• Standardized surgical technique involving extended LMCA patch augmentation.
• Standardized surgical technique involving 3-patch aortic root reconstruction (Brom's technique).

Main Results:

• The study describes a contemporary surgical technique for a complex congenital heart defect.
• The technique addresses ostial LMCA stenosis and bilateral outflow tract obstruction in SVAS patients.
• This standardized approach aims to improve outcomes in high-risk patients.

Conclusions:

• A standardized 3-patch aortic root reconstruction with extended LMCA patch augmentation provides a consistent method for complex SVAS.
• This technique is specifically designed for patients with ostial LMCA stenosis and bilateral outflow tract obstruction.
• Further evaluation of outcomes associated with this standardized technique is warranted.