Issue |
J Extra Corpor Technol
Volume 20, Number 1, March 1988
|
|
---|---|---|
Page(s) | 41 - 46 | |
DOI | https://doi.org/10.1051/ject/198820141 | |
Published online | 25 August 2023 |
Original Article
Blood Damaging Effects in Cardiotomy Suction Return
1
Medical University of South Carolina, Department of Surgery, Charleston, SC
2
Clemson University, Department of Bioengineering, Clemson, SC
* Direct communications to: Dr. Andreas F. von Recum, Department of Bioengineering, 301 Rhodes Engineering Research Center, Clemson University, Clemson, SC 29634-0905.
(J. Extra-Corpor. Technol. 20[1]: p. 40–45, 44 references, Spring Issue) Over the past three decades improvements have been made to many of the components of the extracorporeal circulation system resulting in decreased blood damage. However, the cardiotomy suction return sub-circuit, recognized as one of the most injurious components of heart-lung bypass, has remained relatively unchanged. The purpose of this study was to investigate the amount of blood damage that occurred with different cardiotomy suction designs. The five test designs compared two different suction tips with various air-mixing techniques, in vitro. Significant blood damage was observed in the air-containing designs as compared to the airless and control circuits. A minimal flow rate capable of excluding air was demonstrated as being the most important factor for blood protection, irrespective of aspirator tip design.
Key words: Cardiotomy Suction / Air/Blood Mixing / Hemolysis / Cardiopulmonary Bypass / Extra-Corporeal Circulation
© 1988 AMSECT
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