A Comparative Study of Aortic Valve Neocuspidization Techniques: Formula vs. Template Methods of Neocusp Formation.

Introduction: The template method (TM), pioneered by Ozaki for aortic valve neocuspidization (AVNeo), has been widely adopted for aortic valve replacement, though it requires specialized instruments. This study introduces a novel formula method (FM), which uses the diameter of the aortic valve fibrous ring (AV-D) to determine the dimensions of the neocusps to be trimmed from autologous without the need for templates, potentially reducing costs and complexity. We aimed to compare the clinical outcomes of the FM with the established TM in patients undergoing AVNeo.