TY - GEN
T1 - Effect of continuous flow biventricular assist device on pressure-volume loop
T2 - 10th IASTED International Conference on Biomedical Engineering, BioMed 2013
AU - Naiyanetr, Phornphop
PY - 2013
Y1 - 2013
N2 - Biventricular assist device (BiVAD) support is a mechanical circulatory support using both left ventricular assist device (LVAD) and right ventricular assist device (RVAD). BiVAD support is now increasingly used as an alternative treatment for end-stage heart failure patients, such as bridge to transplantation, bridge to recovery, and permanent support. Both flow balancing and Starling response of the right and left ventricles should be concerned to prevent the suction event on both right and left ventricles. In this study, the cardiovascular system model using the rotary blood pump was implemented to study the mechanical circulatory support management during left ventricular assist device (LVAD) support alone and during BiVAD support. The pathological ventricles were generated by reducing the maximum elastance (Emax) in the model. The pressure-volume loop of difference heart conditions (normal ventricle: 100% of Emax, pathological ventricle: 50% of Emax) and the levels of pump support (non-support, partial support and full support) were simulated. From all simulations, the suction events in the right ventricle (represented by negative values of right ventricular volume and pressure) were observed during the unbalanced flow conditions of BiVAD support. Therefore, the flow balancing or pump speed adjustment is a key for BiVAD management.
AB - Biventricular assist device (BiVAD) support is a mechanical circulatory support using both left ventricular assist device (LVAD) and right ventricular assist device (RVAD). BiVAD support is now increasingly used as an alternative treatment for end-stage heart failure patients, such as bridge to transplantation, bridge to recovery, and permanent support. Both flow balancing and Starling response of the right and left ventricles should be concerned to prevent the suction event on both right and left ventricles. In this study, the cardiovascular system model using the rotary blood pump was implemented to study the mechanical circulatory support management during left ventricular assist device (LVAD) support alone and during BiVAD support. The pathological ventricles were generated by reducing the maximum elastance (Emax) in the model. The pressure-volume loop of difference heart conditions (normal ventricle: 100% of Emax, pathological ventricle: 50% of Emax) and the levels of pump support (non-support, partial support and full support) were simulated. From all simulations, the suction events in the right ventricle (represented by negative values of right ventricular volume and pressure) were observed during the unbalanced flow conditions of BiVAD support. Therefore, the flow balancing or pump speed adjustment is a key for BiVAD management.
KW - BiVAD
KW - BiVAD management
KW - Biventricular assist device
KW - RBP
KW - Rotary blood pump
UR - https://www.scopus.com/pages/publications/84883890957
U2 - 10.2316/P.2013.791-089
DO - 10.2316/P.2013.791-089
M3 - Conference contribution
AN - SCOPUS:84883890957
SN - 9780889869530
T3 - Proceedings of the IASTED International Conference on Biomedical Engineering, BioMed 2013
SP - 527
EP - 530
BT - Proceedings of the IASTED International Conference on Biomedical Engineering, BioMed 2013
Y2 - 13 February 2013 through 15 February 2013
ER -