Aortic cannulation

Parker, Robert L.

doi:10.1136/thx.24.6.742

Cited by 13 publications

(4 citation statements)

References 6 publications

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“…In order to overcome these fatal complications, there have been numerous studies reporting on improvement of novel aortic cannula to provide optimal profusion of the blood, starting from the single stream cannula, and subsequent designs have moved on to cannula tip, by designing multiple streams, and dispersed stream cannula . White et al modified the aortic cannula with an expanded angle funnel tip and proved that this cannula outperforms the standard CPB cannula by reducing the exit velocity and particulate dislodgment .…”

mentioning

confidence: 99%

Modification of Aortic Cannula With an Inlet Chamber to Induce Spiral Flow and Improve Outlet Flow

et al. 2017

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Physiologically, blood ejected from the left ventricle in systole exhibited spiral flow characteristics. This spiral flow has been proven to have several advantages such as lateral reduction of directed forces and thrombus formation, while it also appears to be clinically beneficial in suppressing neurological complications. In order to deliver spiral flow characteristics during cardiopulmonary bypass operation, several modifications have been made on an aortic cannula either at the internal or at the outflow tip; these modifications have proven to yield better hemodynamic performances compared to standard cannula. However, there is no modification done at the inlet part of the aortic cannula for inducing spiral flow so far. This study was carried out by attaching a spiral inducer at the inlet of an aortic cannula. Then, the hemodynamic performances of the new cannula were compared with the standard straight tip end-hole cannula. This is achieved by modeling the cannula and attaching the cannula at a patient-specific aorta model. Numerical approach was utilized to evaluate the hemodynamic performance, and a water jet impact experiment was used to demonstrate the jet force generated by the cannula. The new spiral flow aortic cannula has shown some improvements by reducing approximately 21% of impinging velocity near to the aortic wall, and more than 58% reduction on total force generated as compared to standard cannula.

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confidence: 99%

Modification of Aortic Cannula With an Inlet Chamber to Induce Spiral Flow and Improve Outlet Flow

et al. 2017

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“…16 Possible causes of plaque rupture and dislodgment are thought to be aortic manipulations such as aortic cross and partial clamping as well as the cannulation itself. 17,18 Eckstein et al reported a case of aortic rupture induced by plaque rupture due to cannulation attempts in a 70year-old man. 19 Moreover, jet flows exiting singlestream aortic cannulae have been associated with high back pressure increasing the risk of atherosclerotic plaque dislodgment by the sandblasting effect.…”

Section: Discussionmentioning

confidence: 99%

Hydrodynamics of the new Medos aortic cannula

2002

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“…Nevertheless recent reports indicate that fatal complications, both immediate and late, may occur. Immediate complications include carotid hypoperfusion (Parker, 1969;Magilligan et al, 1972) or hyperperfusion (Krous, Mansfield, and Sauvage, 1973), acute aortic dissection (Salama and Blesovsky, 1970;Reinke et al, 1974;Williams, Suwansirikul, and Engelman, 1974), and entrance of the cannula into one of the arch branches or the left ventricle (Magner, 1971).…”

Section: Case Reportmentioning

confidence: 99%