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Preparation and Pathogen Inactivation of Double Dose Buffy Coat Platelet Products using the INTERCEPT Blood System
Published on: December 7, 2012
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Residual risks of bacterial contamination for pathogen-reduced platelet components
Marc Cloutier1,2, Dirk De Korte3,4,
1Medical Affairs and Innovation, Héma-Québec, Québec, Canada.
Vox Sanguinis
|March 21, 2022
Summary
Pathogen inactivation (PI) technologies reduce bacterial contamination in platelet transfusions. This review assesses residual risks, including spore-forming bacteria, after PI treatment.
Area of Science:
- Transfusion Medicine
- Microbiology
- Infectious Diseases
Background:
- Platelet transfusions are vital for patients with low or dysfunctional platelets.
- Pathogen contamination of platelets, though reduced, remains a concern.
- Pathogen inactivation (PI) technologies mitigate transfusion-related risks.
Purpose of the Study:
- To review residual risks of bacterial infection from platelet transfusions post-PI.
- To assess the impact of bacterial load and PI technology efficacy.
- To evaluate risks from spore-forming microorganisms and post-PI contamination.
Main Methods:
- Review of existing literature on PI technologies for platelet components.
- Analysis of bacterial load reduction capacity and timing of PI methods.
- Assessment of risks associated with spore-forming bacteria and post-PI microbial introduction.
Main Results:
- PI technologies significantly reduce bacterial contamination risk in platelet transfusions.
- Residual risk is influenced by bacterial load, PI method efficacy, and timing.
- Spore-forming bacteria and post-PI contamination present ongoing challenges.
Conclusions:
- While PI enhances platelet transfusion safety, residual risks persist.
- Understanding PI limitations is crucial for mitigating transfusion-transmitted bacterial infections.
- Further research is needed to address risks from spore-formers and post-PI contamination.
