Monitoring bacterial contamination of blood components in Germany: effect of contamination reduction measures.

Abstract:

BACKGROUND AND OBJECTIVES:National guidelines for monitoring bacterial contamination of blood components were introduced in Germany in 1997. Between 1998 and 2002, numerous measures were implemented to prevent bacterial contamination. This study investigates their impact on contamination rates. MATERIALS AND METHODS:Culture-based testing for bacterial detection on a random sample of blood components is part of routine quality control in German blood establishments. Using standardized questionnaires, data from the production periods 1998, 2001 and 2005/2006 were collected and analysed. RESULTS:The bacterial contamination rate of RBCs was reduced from 0·157% in 1998 to 0·029% in 2005/2006 (P<0·001). While the contamination rate of apheresis PCs remained nearly unchanged over the years, it dramatically decreased for pooled PCs by 70% to a contamination rate of 0·158% (P=0·001) within the last observation period, similar to that of apheresis PCs. The contamination rate of plasma decreased from 0·100% in 1998 to 0·019% in 2005/2006 (P=0·002). CONCLUSIONS:Precautionary measures significantly reduced bacterial contamination rates of blood components. Long-term monitoring with standardized methods is appropriate to evaluate the cumulative effect of contamination-preventing measures.

journal_name

Vox Sang

journal_title

Vox sanguinis

authors

Walther-Wenke G,Wirsing von König CH,Däubener W,Heiden M,Hoch J,Hornei B,Volkers P,Working Party on Bacteria Safety in Transfusion Medicine, Advisory Board of the German Ministry of Health, Berlin.

doi

10.1111/j.1423-0410.2010.01432.x

subject

Has Abstract

pub_date

2011-05-01 00:00:00

pages

359-66

issue

4

eissn

0042-9007

issn

1423-0410

journal_volume

100

pub_type

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