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  • Title: Experimental fluid dynamics of transventricular apical aortic cannulation.
    Author: Fukuda I, Yanaoka H, Inamura T, Minakawa M, Daitoku K, Suzuki Y.
    Journal: Artif Organs; 2010 Mar; 34(3):222-4. PubMed ID: 20447047.
    Abstract:
    To clarify the flow pattern from a transventricular apical aortic cannula, hydrodynamic analysis of transventricular apical aortic cannulation (apical cannulation) was performed using particle-image velocimetry in a glass aortic model. Simulated apical cannulation using a 7-mm Sarns Soft-Flow cannula and the newly developed 7-mm apical aortic cannula was compared with standard aortic cannulation. The flow-velocity, streamline, and distribution of magnitude of the strain rate tensor (function of shear stress) were analyzed. Streamline analysis revealed a steady and organized flow profile in apical cannulation as compared with that in standard aortic cannulation. The magnitude of the strain rate tensor decreased within a few centimeters from the exit of the apical cannula.
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