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Quality control of leucoreduced cellular blood components in France
A Chabanel1, G Andreu, F Carrat
1French National Blood Service, Paris, France Paris VII University, Paris, France. anne.chabanel@efs.sante.fr
Background And Objectives:
Since 1 April 1998, all cellular blood components in France have been leucoreduced. The current French standard is < 1 x 10(6) white blood cells (WBC) per unit with a 95% confidence that at least 97% of units will meet this standard.
Materials And Methods:
Quality control (QC) data for leucoreduced cellular blood components were collected from the 41 French blood centres over a 5-month period. Conformance to the standard was determined using a non-parametric approach.
Results:
More than 98% of the 15 286 red cell concentrates and of the 2895 platelet concentrates tested had < 1 x 10(6) WBC per unit. One filtration device gave unsatisfactory results and its use was discontinued.
Conclusion:
This QC survey shows an overall compliance with the standard. The data illustrate the practical value of identifying devices or centres with consistent QC problems.