Effect of antiseptic bathing with chlorhexidine or octenidine on central line-associated bloodstream infections in intensive care a cluster-randomized controlled trial
CLINICAL MICROBIOLOGY AND INFECTION(2022)
Abstract
Objectives: Our study aimed to compare the effect of daily bathing with chlorhexidine, octenidine, or water and soap (routine care = control) on central line (CL)-associated bloodstream infection (CLABSI) rates in intensive care units (ICUs). Methods: A multicentre cluster-randomized controlled trial was done with a 12-month intervention period from February 1, 2017 to January 31, 2018 (octenidine and routine care group) or from June 1, 2017 to May 31, 2018 (chlorhexidine group). Wards were randomly assigned to one of two decolonization regimes or routine care (control). Intervention included daily bathing with 2% chlorhexidine-mpregnated cloths or 0.08% octenidine wash mitts for 12 months, whereas the control group used water and soap (routine care). The primary outcome was incidence density of CLABSI per 1000 CL days. Poisson regression and generalized estimating equation models were applied. Results: A total of 72 ICUs with 76 815 patients (22 897 patients in the chlorhexidine group, 25 127 in the octenidine group, and 28 791 in the routine care group) were included. Incidence densities were 0.90 CLABSI per 1000 CL days (95% CI 0.67-1.19) in the chlorhexidine group, 1.47 (95% CI 1.17-1.81) in the octenidine group, and 1.17 (95% CI 0.93-1.45) in the routine care group. Adjusted incidence rate ratios of CLABSI were 0.69 (95% CI 0.37-1.22, p = 0.28) in the chlorhexidine group and 1.22 (95% CI 0.54-2.75, p = 0.65) in the octenidine group (compared with routine care). Discussion: Antiseptic bathing with 2% chlorhexidine-impregnated cloths and 0.08% octenidine wash mitts lacks a significant preventive effect on CLABSI rates in ICUs. However, our trial has a high likelihood of being underpowered because CLABSI rates in the routine care group were approximately 40% lower than initially assumed. (C) 2022 European Society of Clinical Microbiology and Infectious Diseases. Published by Elsevier Ltd. All rights reserved.
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Key words
Antiseptic bathing,Chlorhexidine gluconate,CLABSI,Octenidine dihydrochloride,Prevention
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