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- W2105971570 abstract "Right axillary artery (RAA) cannulation is increasingly used in cardiac surgery. Little is known about resulting flow patterns in the aorta. Therefore, flow was visualized and analyzed. A mock circulatory circuit was assembled based on a compliant transparent anatomical silicon aortic model. A RAA cannula was connected to a continuous flow rotary blood pump (RBP), pulsatile heart action was provided by a pneumatic ventricular assist device (PVAD). Peripheral vascular resistance, regional flow and vascular compliance were adjusted to obtain physiological flow and pressure waveforms. Colorants were injected automatically for flow visualization. Five flow distributions with a total flow of 4 l/min were tested (%PVAD:%RBP): 100:0, 75:25, 50:50, 25:75, 0:100. Colorant distribution was assessed using quantitative 2D image processing. Continuous flow from the RAA divided in a retrograde and an antegrade portion. Retro- to antegrade flow ratio increased with increasing RAA-flow. At full RBP support flow was stagnant in the ascending aorta. There were distinct flow patterns between the right- and left-sided supra-aortic branches. At full RBP support retrograde flow was demonstrated in the right carotid and right vertebral arteries. Further studies are needed to confirm and evaluate the described flow patterns." @default.
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- W2105971570 date "2011-06-01" @default.
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- W2105971570 title "Aortic flow patterns resulting from right axillary artery cannulation" @default.
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- W2105971570 doi "https://doi.org/10.1510/icvts.2010.254250" @default.
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