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A fatal transfusion reaction associated with blood contaminated with Pseudomonas fluorescens
J Scott1, F E Boulton, J R Govan
1Scottish National Blood Transfusion Service, South East Regional Centre, Edinburgh, UK.
Abstract:
A fatal transfusion reaction due to contamination of platelet-depleted whole blood with Pseudomonas fluorescens is reported. Routine sterility testing on blood products and environmental microbiological monitoring suggested no source for the contaminating organism, as has been the case for the majority of reported incidents of this type. The value of routine sterility testing in the prevention and investigation of such incidents is discussed.
Insights
A fatal transfusion reaction occurred due to Pseudomonas fluorescens contamination in platelet-depleted whole blood. Despite routine testing, the source remained elusive, highlighting challenges in preventing such rare but severe transfusion complications.
Area of Science:
- Transfusion Medicine
- Microbiology
- Patient Safety
Background:
- Blood product contamination poses a significant risk to patient safety.
- Pseudomonas fluorescens is a known opportunistic pathogen that can contaminate blood products.
- Identifying the source of contamination is crucial for preventing future incidents.
Purpose of the Study:
- To report a fatal transfusion reaction caused by Pseudomonas fluorescens.
- To discuss the challenges in identifying the source of contamination in blood products.
- To evaluate the effectiveness of routine sterility testing in preventing and investigating such events.
Main Methods:
- Case report of a fatal transfusion reaction.
- Review of routine sterility testing results for blood products.
- Environmental microbiological monitoring data analysis.
Main Results:
- A patient experienced a fatal reaction attributed to Pseudomonas fluorescens in transfused platelet-depleted whole blood.
- Routine sterility testing and environmental monitoring failed to identify the source of contamination.
- Similar challenges in source identification have been reported in other cases.
Conclusions:
- Pseudomonas fluorescens contamination can lead to severe transfusion reactions.
- Routine sterility testing may not always identify the source of contamination.
- Enhanced vigilance and investigation protocols are necessary to prevent transfusion-related infections.