The effect of Copper-Oxide treated soft and hard surfaces on the incidence of Healthcare Associated Infections: A two-phase study

Source avec lien : Journal of Hospital Infection, , 2/14/2020. 10.1016/j.jhin.2020.02.006

Les draps et les surfaces dures imprégnés d’oxyde de cuivre dans l’environnement hospitalier sont devenus une nouvelle technologie pour réduire la contamination de l’environnement et ainsi potentiellement réduire le risque d’infections associées aux soins de santé (IASS).

Background Copper-oxide impregnated linens and hard-surfaces within the hospital environment have emerged as a novel technology to reduce environmental contamination and thereby potentially reduce the risk of Healthcare Associated Infections (HCAI). Methods This was a 2-phase study. The first phase was a prospective, cluster-randomized, crossover clinical trial in which one pod (8-beds) of our General ICU (GICU) utilized copper-oxide impregnated linens while the other pod (8-beds) used standard hospital linens. The second phase of the study was a 2-year before-after-study, following the relocation of three ICU’s into a new ICU tower in which all the hard surfaces were treated with copper-oxide (in addition to copper impregnated linens). HCAI were recorded using the National Healthcare Safety Network (NHSN) definitions. Results 1282 patients were enrolled in the first phase of the study. There was no difference in the rate of HCAI between the patients who received standard as compared to copper-oxide linen. In the second phase of the study, there was a significant reduction in the number of infections due to Clostridium difficile (2.4/1000 vs 0.7/1000 patient days, incidence rate ratio 3.3; 95% CI 1.4 to 8.7; p=0.002) but no difference in the rate of central line associated blood stream infections (CLABSI) nor catheter associated urinary tract infections (CAUTI’s). Conclusion Copper oxide impregnated linens alone had no effect on the rate of HCAI. Our data suggests that copper-oxide treated hard surfaces reduced the rate of infections due to C. difficile; however, important confounders cannot be excluded.

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