A New Sinus Prosthesis for Aortic Valve-Sparing Surgery Maintaining the Shape of the Root at Systemic Pressure

This new sinus prosthesis maintains normal configuration of the aortic root with three distinct sinuses of Valsalva and straight commissural pillars in systemic circulation. The noncompliant material induces abnormal leaflet bending during systole, but leaflets do not collide with the wall of prosthesis.