On-X versus St Jude Medical Mechanical Prosthesis in mitral position: are we moving forward in design technology?

Background: Continuous effort is still provided in designing optimal artificial heart valves with better hemodynamic function and reduced thromboembolic potential. The question is do we have moved forward toward this goal or not.

Methods: A prospective, randomized comparative study was done on 360 patients scheduled for elective mitral valve replacement.