Surgical Approach in Massive Intraoperative Atherosclerotic Embolism

Demertzis, Stefanos; Trunfio, Rafael; Rotz, Fredi von; Siclari, Francesco

doi:10.1016/j.athoracsur.2005.08.034

Cited by 1 publication

(1 citation statement)

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“…The result of that "sandblasting" is to increase the likelihood of disturbing the calcification and potentially causing an embolism. This is increasingly significant when considering the disturbance that could have arose from clamping the ascending aorta to begin the procedure [4]These atherosclerotic emboli can lead to obstructed blood flow causing stroke and brain damage [5].…”

Section: Procedural Complicationsmentioning

confidence: 99%

Effect of Negative Angle Cannulation during Cardiopulmonary Bypass - A Computational Fluid Dynamics Study

Mokhtar¹,

Dinger²,

Madagi³

et al. 2017

IJBES

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Creation of emboli in the aortic root and changes in flow distribution between supra-aortic arteries and descending aorta can lead to stroke and perfusion related tissue damage during cardiopulmonary bypass. A thorough understanding of how the angle of cannulation affects the overall success of cardiopulmonary bypass during cannulation of the ascending aorta is needed. Previous simulation research has observed the effect of outflow cannula position by changing the location of the cannulation site to the subclavian artery and other vessels, as well as positions for innovative cannula designs. The purpose of this study is to evaluate the success of the procedure while using a straight cannula, modulating the angle of cannulation below horizontal in the frontal plane. A simplified geometry of the aorta was used. The success of the procedure was quantified by observing wall shear stress, normal stress, intra-fluid shear stress, and flow distribution. A numerical study was performed to solve the Reynolds Averaged Naiver Stokes governing equations, which were used in conjunction with a constant density fluid to simulate blood, and a realizable two-layer k-ε turbulence model.

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Section: Procedural Complicationsmentioning

confidence: 99%