After implantation of a transcatheter bioprosthetic heart valve its original circular circumference may become distorted, which can lead to changes in leaflet coaptation and leaflets that are stretched or sagging.... … Valve hydrodynamic performance data were collected using a commercially available left heart Pulse Duplicator (Vivitro Systems) at 0, 41, 80, and 123 M cycles; at these intervals, the valves mounted in the metallic adapter …
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