Early hemodynamic evaluation of Trifecta and Freestyle bioprostheses in patients with a small aortic root: preliminary results from a prospective randomized study.

Abstract

In the present study, the stentless and stented prostheses each yielded comparable and excellent early hemodynamics results. The data obtained suggest that Trifecta valve implantation is a valid means of avoiding PPM after AVR in patients with a small native aortic annulus.