TITLE

In vitro hydrodynamics of the Embol-X cannula

AUTHOR(S)
Gerdes, Anja; Hanke, Thorsten; Sievers, Hans-H
PUB. DATE
March 2002
SOURCE
Perfusion;Mar2002, Vol. 17 Issue 2, p153
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Background: Prevention of intraoperative plaque dislodgement in patients with atherosclerotic ascending aorta by development of innovative aortic cannula designs gains growing interest in cardiac surgery. To increase knowledge about the hydrodynamics of the innovative Embol-X[sup TM] cannula, which includes an intra-aortic filter device targeting at atheromatous emboli capture, was the aim of the present study. Methods: Pressure gradients and back pressures of the Embol-X[sup TM] cannula were measured at varying flow rates in a mock circulation and compared with two commonly used single-stream cannulae. Results: At a flow rate of 5.5 l/min, pressure gradients across the Argyle[sup TM] and the RMI cannulae were 48% and 62% and back pressures 25% and 47% lower than the corresponding values across the Embol-X[sup TM] cannula. Conclusions: The novel concept of integrating a filter device may provide clinical advantages concerning neurologic outcome. Further in vivo studies seem to be desirable to obtain more information concerning the clinical effects of the Embol-X[sup TM] cannula hydrodynamics.
ACCESSION #
6567734

 

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