Total cavopulmonary (CP) connection has been developed to treat hearts with essentially a single ventricular chamber[1]. In a typical CP connection, the superiour vena cava (SVC) and inferior vena cava (IVC) are connected directly to the right pulmonary artery (RPA). High incidence of failures occurred due to fibromuscular ingrowth, valvular degeneration and pseudo-intimal peel formation. All of which depend upon the hemodynamics of the connection through the presence of stasis, wall shear stress or energy loss due to the conduits. There is very little in-vitro study on the hemodynamics of the CP connection[2,3]. In terms of the local fluid dynamics, the surgically created circuit should not cause blood flow abnomalities. It is important to obtain quantitative informations to optimise the hemodynamic design of the CP connection. The objective of this study is to compare the flow fields across the models of the CP connection.

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