in-vitro Assessment of Expanded-Polytetrafluoroethylene Stentless Tri-leaflet Valve Prosthesis for Aortic Valve Replacement

Truly stentless polymeric valve prosthesis can be a viable alternative for aortic valve replacement (AVR). In the present paper, the dynamic and hemodynamic performance of a novel designed expanded-polytetrafluoroethylene (ePTFE) stentless tri-leaflet valve was assessed experimentally.... ... The in-vitro tests were performed under time-varying physiological pressure by using the Vivitro pulse duplicator. ... The Vivitro pulse duplicator (Vivitro Systems Inc., Victoria, BC, Canada) was used to generate the physiological pressure and flow in the left ventricle and aorta. ...

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