PMID- 38510847 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240322 IS - 2590-0889 (Electronic) IS - 2590-0889 (Linking) VI - 6 IP - 2 DP - 2024 Jun TI - The effect of taurolidine on the time-to-positivity of blood cultures. PG - 100352 LID - 10.1016/j.infpip.2024.100352 [doi] LID - 100352 AB - 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 BACTEC(TM) 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. CI - (c) 2024 The Authors. FAU - van den Bosch, C H AU - van den Bosch CH AD - Princess Maxima Centre for Paediatric Oncology, Heidelberglaan 25, 3584 CS, Utrecht, The Netherlands. FAU - Moree, J E P AU - Moree JEP AD - Princess Maxima Centre for Paediatric Oncology, Heidelberglaan 25, 3584 CS, Utrecht, The Netherlands. AD - Department of Medical Microbiology, University Medical Centre Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands. FAU - Peeters, S AU - Peeters S AD - Department of Medical Microbiology, University Medical Centre Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands. FAU - Lankheet, M AU - Lankheet M AD - Department of Medical Microbiology, University Medical Centre Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands. FAU - van der Steeg, A F W AU - van der Steeg AFW AD - Princess Maxima Centre for Paediatric Oncology, Heidelberglaan 25, 3584 CS, Utrecht, The Netherlands. FAU - Wijnen, M H W A AU - Wijnen MHWA AD - Princess Maxima Centre for Paediatric Oncology, Heidelberglaan 25, 3584 CS, Utrecht, The Netherlands. FAU - van de Wetering, M D AU - van de Wetering MD AD - Princess Maxima Centre for Paediatric Oncology, Heidelberglaan 25, 3584 CS, Utrecht, The Netherlands. FAU - van der Bruggen, J T AU - van der Bruggen JT AD - Department of Medical Microbiology, University Medical Centre Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands. LA - eng PT - Journal Article DEP - 20240229 PL - England TA - Infect Prev Pract JT - Infection prevention in practice JID - 101777928 PMC - PMC10950745 OTO - NOTNLM OT - Blood culture OT - Central line-associated bloodstream infection OT - Central venous access OT - Paediatric oncology OT - Taurolidine OT - Taurolock EDAT- 2024/03/21 06:43 MHDA- 2024/03/21 06:44 PMCR- 2024/02/29 CRDT- 2024/03/21 04:17 PHST- 2023/11/03 00:00 [received] PHST- 2024/02/07 00:00 [accepted] PHST- 2024/03/21 06:44 [medline] PHST- 2024/03/21 06:43 [pubmed] PHST- 2024/03/21 04:17 [entrez] PHST- 2024/02/29 00:00 [pmc-release] AID - S2590-0889(24)00016-7 [pii] AID - 100352 [pii] AID - 10.1016/j.infpip.2024.100352 [doi] PST - epublish SO - Infect Prev Pract. 2024 Feb 29;6(2):100352. doi: 10.1016/j.infpip.2024.100352. eCollection 2024 Jun.