The effect of taurolidine on the time-to-positivity of blood cultures

Bibliographic Details
Title: The effect of taurolidine on the time-to-positivity of blood cultures
Authors: C.H. van den Bosch, J.E.P. Moree, S. Peeters, M. Lankheet, A.F.W. van der Steeg, M.H.W.A. Wijnen, M.D. van de Wetering, J.T. van der Bruggen
Source: Infection Prevention in Practice, Vol 6, Iss 2, Pp 100352- (2024)
Publisher Information: Elsevier, 2024.
Publication Year: 2024
Collection: LCC:Infectious and parasitic diseases
LCC:Public aspects of medicine
Subject Terms: Central line-associated bloodstream infection, Taurolidine, Taurolock, Paediatric oncology, Central venous access, Blood culture, Infectious and parasitic diseases, RC109-216, Public aspects of medicine, RA1-1270
More Details: Summary: Background: Taurolidine containing lock solutions (TL) are a promising method for the prevention of central line associated bloodstream infections. Per accident, the TL may not always be aspirated from the central venous catheter (CVC) before blood cultures are obtained. The TL could, unintentionally, end up in a blood culture vial, possibly altering the results. The aim of this study was to investigate the effect of the TLs on the detection of microbial growth in blood culture vials. Methods: Different lock solutions (taurolidine-citrate-heparin (TCHL), taurolidine, heparin, citrate or NaCl) were added to BD BACTECTM blood culture vials (Plus Aerobic/F, Lytic/10 Anaerobic/F or Peds Plus/F) before spiking with Staphylococcus aureus (ATCC 29213 or a clinical strain) or Escherichia coli (ATCC 25922 or a clinical strain) in the presence and absence of blood. Subsequently, blood culture vials were incubated in the BD BACTEC FX instrument with Time-to-positivity (TTP) as primary outcome. In addition, the effect of the TCHL on a variety of other micro-organisms was tested. Discussion: In the presence of taurolidine, the TTP was considerably delayed or vials even remained negative as compared to vials containing heparin, citrate or NaCl. This effect was dose-dependent. The delayed TTP was much less pronounced in the presence of blood, but still notable. Conclusion: This study stresses the clinical importance of discarding TLs from the CVC before obtaining a blood culture.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2590-0889
Relation: http://www.sciencedirect.com/science/article/pii/S2590088924000167; https://doaj.org/toc/2590-0889
DOI: 10.1016/j.infpip.2024.100352
Access URL: https://doaj.org/article/d0df915dc13c49f2bafccc31c3390e86
Accession Number: edsdoj.0df915dc13c49f2bafccc31c3390e86
Database: Directory of Open Access Journals
More Details
ISSN:25900889
DOI:10.1016/j.infpip.2024.100352
Published in:Infection Prevention in Practice
Language:English