Abstract
Purpose
The study aimed to examine effect of chlorhexidine dressing in the prevention of peritoneal dialysis (PD)-related infection in PD patients.
Methods
This single-center pilot study recruited 50 incident PD patients to use weekly chlorhexidine dressing. The primary outcome was exit-site/tunnel infection rate. Secondary outcomes were peritonitis rate, time to first PD-related infection, infection-related hospitalization, technique and patient survival, adverse events, and chlorhexidine dressing acceptability. These clinical outcomes were compared with those of a historical cohort (2016–2017) using daily gentamicin cream.
Results
A total of 50 patients were recruited to use chlorhexidine and followed up for one year. The exit-site/tunnel infection rate was 0.09 (95% confidence interval [CI] 0.02–0.22) and peritonitis rate was 0.07 (95% CI 0.01–0.19) episodes per patient-year with chlorhexidine dressing. The 1-year infection-free survival rates for exit-site/tunnel infection and peritonitis were 92% and 94%, respectively. The 1-year technique and patient survival rates were 86% and 96%, respectively. Overall, 12% of participants developed localized contact dermatitis with chlorhexidine. Most participants (73%) reported that chlorhexidine dressings were very acceptable. Compared to a historical cohort using gentamicin cream (n = 238), the chlorhexidine group had similar exit-site/tunnel infection rates (incidence rate ratio [IRR] 0.65, 95% CI 0.22–1.92) but had lower peritonitis rates (IRR 0.24, 95% CI 0.07–0.77), and lower PD infection-related hospitalization rates (IRR 0.21, 95% CI 0.06–0.69) after adjusting for age, sex, race, primary kidney disease, and diabetes mellitus.
Conclusion
Weekly chlorhexidine dressing was associated with acceptable PD-related infection outcomes and was well-accepted by patients, although had a 12% rate of delayed localized contact dermatitis.
Trial registration number and date
The study was registered under www.clinicaltrials.gov with the reference number of NCT03406520 on 23 January 2018.
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Data availability
Data for this study is available from the corresponding author on appropriate request.
Code availability
Not applicable.
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Acknowledgements
The authors gratefully acknowledge the contributions of Ms Chue Xiuping, a clinical research coordinator, Medical ACP, Singhealth, Pte Ltd, a PD nurse, Ms Kok Su Fong, division of nursing, Singapore General Hospital, and physicians and nurses from peritoneal dialysis unit, Singapore General Hospital.
Funding
The study was supported by Singhealth New Investigator grant (to Htay Htay) and Johnson & Johnson Pte Ltd.
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Htay Htay has received consultancy fees and travel sponsorships from AWAK Technologies Pte Ltd. She has also received speaker’s honoraria and travel sponsorships from Baxter Healthcare. Marjorie Foo has received consultancy fees and travel sponsorships from AWAK Technologies Pte Ltd, and travel sponsorships from Baxter Healthcare. David Johnson has received grants from National Health and Medical Research Council of Australia, consultancy fees, research grants, speaker’s honoraria and travel sponsorships from Baxter Healthcare and Fresenius Medical Care, consultancy fees from Astra Zeneca and AWAK, speaker’s honoraria and travel sponsorships from ONO, and travel sponsorships from Amgen. All other authors have no conflict of interest to declare.
Ethics approval
The study was approved by Singhealth Centralized Institutional Review Board (CIRB; reference number 2017/2698).
Consent to participate
Informed consent was obtained from all 50 participants in the pilot study. The CIRB granted a waiver of informed consent for the historical control group as non-interventional study.
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Htay, H., Choo, J.C.J., Johnson, D.W. et al. Chlorhexidine-impregnated sponge dressing for prevention of catheter exit-site infection in peritoneal dialysis patients: a pilot study. Int Urol Nephrol 53, 803–812 (2021). https://doi.org/10.1007/s11255-020-02674-w
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DOI: https://doi.org/10.1007/s11255-020-02674-w