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Updated: May 21, 2026
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Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction
Published on: February 13, 2021
Computational modelling and evaluation of cardiovascular response under pulsatile impeller pump support
Yubing Shi1, Alistair G Brown, Patricia V Lawford
1Medical Physics Group, Department of Cardiovascular Science, Faculty of Medicine, Dentistry and Health , University of Sheffield , Sheffield S10 2RX , UK.
Interface Focus
|June 7, 2012
Summary
This study simulates heart failure support using a Berlin Heart INCOR ventricular assist device (VAD). Optimal settings (0.35 pulsation ratio, 200° phase shift) maximize arterial pulse pressure while maintaining physiological balance.
Area of Science:
- Cardiovascular Engineering
- Biomedical Modeling
- Medical Device Simulation
Background:
- Heart failure significantly impacts cardiovascular function.
- Ventricular assist devices (VADs) are crucial for managing advanced heart failure.
- The Berlin Heart INCOR impeller pump is a type of VAD requiring optimized operational parameters.
Purpose of the Study:
- To numerically simulate cardiovascular response in heart failure patients supported by the Berlin Heart INCOR VAD.
- To investigate the impact of VAD pulsation ratio and phase shift on physiological variables.
- To determine optimal VAD settings for achieving physiologically meaningful arterial pulse pressure.
Main Methods:
- Implementation of a cardiovascular model using the CellML modeling language.
- Systematic variation of VAD pulsation ratio and phase shift to analyze cardiovascular responses.
- Development of an optimization process with a cost function to balance key cardiovascular variables.
Main Results:
- The optimal cardiovascular response was achieved with a pulsation ratio of 0.35 and a phase shift of 200°.
- This configuration yielded a maximal arterial pulse pressure of 12.6 mm Hg.
- Regurgitant pump flow was avoided, and other cardiovascular variables remained within physiological ranges.
Conclusions:
- The Berlin Heart INCOR VAD can be optimized to produce significant arterial pulse pressure.
- Numerical simulation and optimization are valuable tools for VAD parameter tuning.
- Achieving optimal VAD settings is critical for improving patient outcomes in heart failure management.
