The risk of microbial contamination associated with six different needle-free connectors.

Casey, Anna L, Karpanen, Tarja J, Nightingale, Peter and Elliott, Tom Sj (2018) The risk of microbial contamination associated with six different needle-free connectors. British journal of nursing (Mark Allen Publishing), 27 (2). S18-S26. ISSN 0966-0461. This article is available to all UHB staff and students via ASK Discovery tool http://tinyurl.com/z795c8c by using their UHB Athens login IDs.

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Official URL: https://www.magonlinelibrary.com/doi/full/10.12968...

Abstract

BACKGROUND

needle-free connectors are widely used in clinical practice. The aim of this study was to identify any differences between microbial ingress into six different connectors (three neutral-displacement, one negative-displacement and two anti-reflux connectors).

METHODS

each connector underwent a 7-day clinical simulation involving repeated microbial contamination of the connector's injection ports with Staphylococcus aureus followed by decontamination and then saline flushes through each connector. The simulation was designed to be a surrogate marker for the potential risk of contamination in clinical practice.

RESULTS

increasing numbers of S. aureus were detected in the flushes over the 7 days of sampling despite adherence to a rigorous decontamination programme. Significant differences in the number of S. aureus recovered from the saline flush of some types of connectors were also detected. Two different durations (5- and 15-second) of decontamination of the injection ports with 70% isopropyl alcohol (IPA) wipes were also investigated. There was no significant difference between the median number of S. aureus recovered in the saline flushes following a 5-second (165.5, 95% CI=93-260) or a 15-second decontamination regimen (75, 10-190).

CONCLUSIONS

The findings suggest that there may be differences in the risk of internal microbial contamination with different types of connectors and that even 15 seconds of decontamination may not fully eradicate microorganisms from the injection ports of some devices.

Item Type: Article
Additional Information: This article is available to all UHB staff and students via ASK Discovery tool http://tinyurl.com/z795c8c by using their UHB Athens login IDs.
Subjects: QW Microbiology. Immunology
WY Nursing
Divisions: Clinical Support > Infection Control
Related URLs:
Depositing User: Jennifer Manders
Date Deposited: 10 Sep 2019 11:40
Last Modified: 10 Sep 2019 11:40
URI: http://www.repository.uhblibrary.co.uk/id/eprint/2374

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