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Randomized Controlled Trial
. 2022 Apr 12:377:e069634.
doi: 10.1136/bmj-2021-069634.

Multifaceted intervention to reduce haemodialysis catheter related bloodstream infections: REDUCCTION stepped wedge, cluster randomised trial

Affiliations
Randomized Controlled Trial

Multifaceted intervention to reduce haemodialysis catheter related bloodstream infections: REDUCCTION stepped wedge, cluster randomised trial

Sradha Kotwal et al. BMJ. .

Abstract

Objective: To identify whether multifaceted interventions, or care bundles, reduce catheter related bloodstream infections (CRBSIs) from central venous catheters used for haemodialysis.

Design: Stepped wedge, cluster randomised design.

Setting: 37 renal services across Australia.

Participants: All adults (age ≥18 years) under the care of a renal service who required insertion of a new haemodialysis catheter.

Interventions: After a baseline observational phase, a service-wide, multifaceted intervention bundle that included elements of catheter care (insertion, maintenance, and removal) was implemented at one of three randomly assigned time points (12 at the first time point, 12 at the second, and 13 at the third) between 20 December 2016 and 31 March 2020.

Main outcomes measure: The primary endpoint was the rate of CRBSI in the baseline phase compared with intervention phase at the renal service level using the intention-to-treat principle.

Results: 1.14 million haemodialysis catheter days of use were monitored across 6364 patients. Patient characteristics were similar across baseline and intervention phases. 315 CRBSIs occurred (158 in the baseline phase and 157 in the intervention phase), with a rate of 0.21 per 1000 days of catheter use in the baseline phase and 0.29 per 1000 days in the intervention phase, giving an incidence rate ratio of 1.37 (95% confidence interval 0.85 to 2.21; P=0.20). This translates to one in 10 patients who undergo dialysis for a year with a catheter experiencing an episode of CRBSI.

Conclusions: Among patients who require a haemodialysis catheter, the implementation of a multifaceted intervention did not reduce the rate of CRBSI. Multifaceted interventions to prevent CRBSI might not be effective in clinical practice settings.

Trial registration: Australia New Zealand Clinical Trials Registry ACTRN12616000830493.

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Conflict of interest statement

Competing interests: All authors have completed the ICMJE uniform disclosure form at www.icmje.org/disclosure-of-interest/ and declare: support from the organisations listed in the funding statement for the submitted work; no financial relationships with any organisations that might have an interest in the submitted work in the previous three years; no other relationships or activities that could appear to have influenced the submitted work.

Figures

Fig 1
Fig 1
Trial timelines
Fig 2
Fig 2
Box plot of raw rate of confirmed haemodialysis catheter related bloodstream infection (CRBSI) per 1000 catheter days, at service level, across the study. Time points are defined: 0 is all services in baseline phase; 1 is first tranche (12 services) of intervention implemented; 2 is second tranche implemented with total of 24 services in intervention phase; 3 is final tranche implemented with all services in intervention phase. Dots are weighted to size of renal services (according to local dialysis registry). Box represents interquartile range and line represents median rate during trial phase

References

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