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Pall eBDS: an enhanced bacterial detection system for screening platelet concentrates
C P McDonald1, S Pearce, K Wilkins
1National Blood Service, Colindale, London, UK. carl.mcdonald@nbs.nhs.uk
Transfusion Medicine (Oxford, England)
|August 17, 2005
Summary
The Pall enhanced bacterial detection system (Pall eBDS) effectively detects bacteria in platelet concentrates, improving blood safety. This system shows high sensitivity, comparable to BacT/ALERT, for bacterial screening in transfusion medicine.
Area of Science:
- Transfusion Medicine
- Microbiology
- Medical Device Technology
Background:
- Bacterial contamination of blood components is a critical issue in transfusion safety.
- Current detection methods are essential but can be improved for enhanced safety.
Purpose of the Study:
- To evaluate the performance of the Pall enhanced bacterial detection system (Pall eBDS) for detecting bacteria in leucodepleted platelet concentrates.
- To compare the sensitivity of Pall eBDS with the BacT/ALERT system.
Main Methods:
- Platelet concentrates were spiked with known concentrations of various bacterial species.
- Samples were incubated in Pall eBDS pouches, and oxygen reduction was measured.
- Sensitivity studies compared Pall eBDS with the BacT/ALERT system at low bacterial concentrations.
Main Results:
- Pall eBDS achieved 97.6% and 100% detection at 24 and 30 hours, respectively, when samples were immediately inoculated.
- Sampling after 24 hours of incubation yielded 99.1% detection.
- The sensitivity of Pall eBDS and BacT/ALERT was found to be similar, around 1 CFU/mL.
Conclusions:
- The Pall eBDS demonstrates high efficacy in detecting bacterial contamination in platelet concentrates.
- Routine implementation of Pall eBDS or BacT/ALERT can significantly enhance the safety of platelet transfusions.
- Both systems offer comparable sensitivity for critical bacterial screening in blood products.