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Persistent contamination of heater–cooler units for extracorporeal circulation cured by chlorhexidine–alcohol in water tanks

Abstract : Recently, surgical site infections due to non-tuberculous mycobacteria (NTM) have been linked to heater-cooler unit contamination. The European Centre for Disease Prevention and Control and manufacturers now recommend the use of hydrogen peroxide in filtered water to fill heater-cooler unit tanks. After implementation of these measures in our hospital, heater-cooler units became heavily contaminated by opportunistic waterborne pathogens such as Pseudomonas aeruginosa and Stenotrophomonas maltophilia. No NTM were detected but fast-growing resistant bacteria could impair their detection. The efficiency of hydrogen peroxide and chlorhexidine-alcohol was compared in situ. Chlorhexidine-alcohol treatment stopped waterborne pathogen contamination and NTM were not cultured whereas their detection efficiency was probably improved.
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https://hal.umontpellier.fr/hal-01790459
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Soumis le : mercredi 22 janvier 2020 - 10:07:57
Dernière modification le : jeudi 23 juillet 2020 - 15:48:10
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S. Romano-Bertrand, M. Evrevin, C. Dupont, Jean-Marc Frapier, J.-C. Sinquet, et al.. Persistent contamination of heater–cooler units for extracorporeal circulation cured by chlorhexidine–alcohol in water tanks. Journal of Hospital Infection, WB Saunders, 2018, 99 (3), pp.290-294. ⟨10.1016/j.jhin.2018.01.005⟩. ⟨hal-01790459⟩

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