Why the study?
Does an axial pump prototype in the IVC improve fluid dynamics and pressure in an idealized Fontan circulation model?
Does an axial pump prototype in the IVC improve fluid dynamics and pressure in an idealized Fontan circulation model?
An intravascular axial blood pump prototype in the IVC can provide a 3 to 9 mmHg pressure rise, supporting its potential to augment Fontan circulation.
This thesis project examined the interactive fluid dynamics between a blood pump and the univentricular Fontan circulation. 2-D particle image velocimetry (PIV) measurements were conducted on an idealized total cavopulmonary connection (TCPC) with an axial pump prototype in the inferior vena cava (IVC). Fluid velocity profiles were examined under various physiologic conditions for Fontan patients. The velocity profiles for all cases demonstrated the shunting of flow from the IVC toward the right pulmonary artery. A rotational component in the pump outflow was observed forcing flow to the periphery as compared to the flow profile without a pump present in the IVC. The inclusion of the pump provides a pressure rise of 3 to 9 mmHg. These results demonstrate the ability of the intravascular blood pump to support a Fontan circulation and support the continued optimization and development of the pump.
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Steven G. Chopski (2010) studied Fontan circulation. Axial pump prototype in the inferior vena cava vs. No pump present in the inferior vena cava was evaluated on Fluid velocity profiles and pressure rise.
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