Conference Proceedings

Pump-induced haemolysis: a comparison of short-term ventricular assist devices

M Bennett, S Horton, C Thuys, S Augustin, M Rosenberg, C Brizard

Perfusion | ARNOLD, HODDER HEADLINE PLC | Published : 2004

Abstract

Centrifugal pumps are superior to roller pumps for extended support durations in terms of pump-induced haemolysis. In this study, we evaluated the commonly used Biomedicus BP 50 and compared it with the Jostra Rotaflow and a standard roller pump in an in vitro test circuit. Each circuit was run for a six-day period and repeated five times. Plasma haemoglobin values showed the roller pump to become more haemolytic than the Biomedicus (p = 0.022) and the Rotaflow. A statistically significant difference between the Biomedicus and the Rotaflow was observed on day six of the trial (p = 0.016), with the Rotaflow showing lower levels of haemolysis than the Biomedicus. These results support the use ..

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