Key result
Bi-leaflet mechanical valves increase viscous dissipation energy loss up to ~53% versus no valve.
Why the study?
The effect of bi-leaflet mechanical heart valve orientation on flow patterns in a realistic human aorta model with branches remained to be determined.
Does bi-leaflet mechanical heart valve orientation affect flow patterns and energy loss in a computational human aorta model?
Population
Realistic human aorta model with branches
Comparison
BMHV installed at 0° vs 45° vs 90° orientations vs no valve
Design
Unsteady numerical simulation study
Authors
Loading...
May increase energy loss depending on mechanical valve orientation; leaves open whether orientation optimization affects clinical outcomes.
Does bi-leaflet mechanical heart valve orientation affect flow patterns and energy loss in a computational human aorta model?
In a computational aorta model, bi-leaflet mechanical heart valve orientation significantly affects viscous dissipation energy loss, with the 90° orientation causing the maximum increase compared to no valve.
Satheesh et al. (2020) studied Aortic flow with bi-leaflet mechanical heart valve. Bi-leaflet mechanical heart valve (BMHV) at 0°, 45°, and 90° orientations vs. No valve was evaluated on Viscous dissipation energy loss (EL) and wall shear stress. The presence of a bi-leaflet mechanical heart valve increased viscous dissipation energy loss by 43% (0° orientation) to 53% (90° orientation) compared with no valve.