Modes of Leaflet Fluttering: Quantitative Characterization of a Bovine Bioprosthetic Heart Valve.

ABSTRACT: Oscillations of aortic bioprosthetic heart valve (BHV) leaflets during systole are known as leaflet fluttering (LF). LF may be relevant for assessing valvular function and could play a role in structural valve deterioration. However, a quantitative characterization of LF and its underlying physical processes is still missing. The objectives of this study are to systematically characterize LF for a BHV in vitro and to investigate the associated flow structures using a computational model. Leaflet motion of a bovine BHV was captured with high-speed cameras in an in vitro flow loop under varying experimental conditions (cardiac output (CO), inflow, and valve and aortic root orientation). A fluid-structure interaction (FSI) study was conducted for the same BHV for one condition to examine the

SUBMITTER: Jahren SE 

PROVIDER: S-EPMC12852234 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature