Tissue adhesives for bacterial inhibition in extracorporeal membrane oxygenation cannulae

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Pearse, India
Corley, Amanda
Qu, Yue
Fraser, John
Griffith University Author(s)
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2021
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Abstract

BACKGROUND: One of the most serious complications of extracorporeal membrane oxygenation (ECMO) therapy is ECMO cannulae infection, which can occur at quadruple the rate of central venous catheter infections, and significantly impact morbidity and paediatric mortality. The objective of this in vitro observational study was to assess antimicrobial properties of two n-butyl-2-octyl cyanoacrylate tissue adhesive (TA) formulations for bacterial inhibition at peripheral ECMO cannulae insertion sites. METHODS: Antimicrobial properties were assessed using modified agar disk-diffusion (n = 3) and simulated agar cannulation insertion site (n = 20) models. Both assays used Staphylococcus epidermidis which was seeded at the edge of the TA or dressing. Microorganism inhibition was visually inspected and evidenced by the presence or absence of a TA bacterial inhibition zone at 24 and 72 h. RESULTS: Both TAs provided effective barriers to bacterial migration under cannula dressings, to cannula insertion sites and down cannula tunnels. Additionally, both TAs demonstrated distinct zones of inhibition produced when left to polymerise onto agar plates seeded with S. epidermidis. CONCLUSIONS: N-Butyl-2-octyl cyanoacrylate TA appears to inhibit bacterial growth and migration of S. epidermidis. Application of TA to cannulae insertion sites may therefore be a potential bedside strategy for infection prevention in ECMO cannulae, but requires further testing before being used clinically for this purpose.

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Intensive Care Medicine Experimental

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9

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1

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© The Author(s), 2021. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.

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Clinical sciences

Science & Technology

Life Sciences & Biomedicine

Critical Care Medicine

General & Internal Medicine

Extracorporeal membrane oxygenation

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Pearse, I; Corley, A; Qu, Y; Fraser, J, Tissue adhesives for bacterial inhibition in extracorporeal membrane oxygenation cannulae, Intensive Care Medicine Experimental, 2021, 9 (1), pp. 25

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