The Yacoub Technique Is Superior to the David Procedure in Terms of Functional Performance under States of Increased Cardiac Output—An Ex Vivo Study.

This article compares the David reimplantation and Yacoub remodeling techniques for valve sparing aortic root replacement. The study used an ex vivo model to evaluate the functional performance of these procedures under states of increased cardiac output. The results showed that the Yacoub procedure may be superior to the David valve in terms of functional performance during exercise. The David valve exhibited a higher increase in mean pressure gradient with flow compared to the native and Yacoub valves. Additionally, the David valve showed a weaker increase in effective orifice area with increasing flow. These findings may have implications for patient outcomes, particularly in physically active patients, and may influence surgical choices. [Extracted from the article]