Stentless Versus Conventional Xenograft Aortic Valve Replacement: Midterm Results of a Prospectively Randomized Trial

Midterm results after xenograft aortic valve replacement are satisfactory. Overall survival is significantly better after stentless aortic valve replacement in this series. However, there was no cause and effect relationship between lower transvalvular pressure gradient. Fewer thrombembolic events and better survival rates were proven.