Study Findings from Technical University Valencia (TU Valencia) Provide New Insights into Left Ventricular Assist Device (Transient Performance Analysis of Centrifugal Left Ventricular Assist Devices Coupled With Windkessel Model: Large Eddy...).

A study conducted by Technical University Valencia (TU Valencia) has provided new insights into the performance of left ventricular assist devices (LVADs) using computational fluid dynamics (CFD) simulations. The study analyzed the transient behavior of two centrifugal LVADs, the HeartWare VAD and HeartMate3, using a scale-resolving methodology. The LVAD models were coupled with a 2-element Windkessel model to account for vascular resistance and compliance. The study found that the quasi-steady approach, which provides a preliminary approximation of pulsatile flow, can be a useful tool for deciding the characteristics of the pulsatile speed law before running a transient CFD simulation. [Extracted from the article]