Chlorhexidine-impregnated sponge dressing for prevention of catheter exit-site infection in peritoneal dialysis patients

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NEPHROLOGY - ORIGINAL PAPER

Chlorhexidine‑impregnated sponge dressing for prevention of catheter exit‑site infection in peritoneal dialysis patients: a pilot study Htay Htay1   · Jason Chon Jun Choo1 · David W. Johnson2,3,4,5 · Elaine M. Pascoe6 · Mathini Jayaballa1 · Elizabeth Ley Oei1 · Li Choo Ng1 · Sin Yan Wu1 · Marjorie Wai Yin Foo1 Received: 1 August 2020 / Accepted: 29 September 2020 © Springer Nature B.V. 2020

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 patientyear 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 wellaccepted by patients, although had a 12% rate of delayed localized contact dermatitis. Trial registration number and date  The study was registered under www.clini​caltr​ials.gov with the reference number of NCT03406520 on 23 January 2018. Keywords  Topical prophylaxis antibiotics · Catheter-related infections · Chlorhexidine dressing · Exit-site infection · Peritoneal dialysis

Electronic supplementary material  The online version of this article (https​://doi.org/10.1007/s1125​5-020-02674​-w) contains supplementary material, which is available to authorized users. * Htay Htay [email protected] 1



Department of Renal Medicine, Singapore General Hospital, Academia, Level 3, 20 College Road, Singapore 169856, Singapore

2



Princess Alexandra Hospital, Brisbane, Australia

3

Centre for Kid