Page 44 - ANZCP Gazette MAY 2014

A COMPARISON STUDY OF HAEMOLYSIS PRODUCTION IN THREE CONTEMPORARY CENTRIFUGAL PUMPS
Stephen Bottrell1, Martin Bennett1, Simon Augustin1, Clarke Thuys1,
Brad Schultz1, Alison Horton1, Stephen Horton1,2.
1. Perfusion Department, Royal Children’s Hospital, Victoria, Australia 2. Department of Paediatrics, Melbourne University, Australia
One challenge in providing extracorporeal circulation is to supply optimal flow while minimising adverse affects, such as haemolysis. To determine if recent generation centrifugal pumps with their inherent design improvements would lead to reduced cell trauma we undertook a study comparing three devices. Utilizing a simulated short term ventricular assist circuit primed with whole human blood, we examined changes in plasma free haemoglobin values over a six day period. The three pumps
investigated were the Maquet Rotaflow, Levitronix PediVAS and the Medos Deltastream DP3. This study demonstrated that all three pumps produced low levels of haemolysis and are suitable to be used in a clinical environment. The Levitronix PediVAS was significantly less haemolytic than either the Rotaflow (p <0.05) or the DP3 (p<0.05). There was no significant difference in plasma free haemoglobin between the Rotaflow and DP3 (p=0.71).
THE ANZCP REGULATIONS AND STANDARDS CONCERNING CLINICAL PRACTICE – A SURVEY
Kuljeet Farrar B.Sc CCP
Flinders Medical Centre, Flinders Drive, Bedford Park, South Australia, 5042, Australia.
The science of Perfusion has come a long way since the first successful use of a heart-lung bypass machine in 1953 by Gibbon. In that time there has been meteoric advances in both equipment and the practice of Perfusion.
Our current ANZCP Regulations and Standards concerning Clinical Practice were last reviewed in 2009. In the four year interim gap, are all these guidelines still relevant to our current practices or have some become obsolete?
To evaluate the currency of our standards a survey of several Cardiac-Thoracic Units in Australia and New Zealand is being undertaken. A questionnaire has been sent to each of these units to be completed by a senior Perfusion staff member.
Questions were designed to evaluate each regulation and give opportunity for feedback, for example:
Regulation 9.2.6. “Safety glasses and protective gloves should be worn by all personnel involved in cardiopulmonary bypass who might be at risk of contact with blood or blood products.”
Do the Perfusionist in your unit routinely wear safety glasses whilst the patient is on cardiopulmonary bypass (CPB)?
Yes, all; Yes, some; No
Comments
Do the Perfusionist in your unit routinely wear gloves whilst the patient is on cardiopulmonary bypass (CPB)?
Yes, all; Yes, some; No
The final results of the survey will be discussed.
42 MAY 2014 | www.anzcp.org