Effect of a Management Algorithm for Wet Contamination of Peritoneal Dialysis System on the Prevention of Peritonitis: A Prospective Observational Study

Overview

Journal Kidney Dis (Basel)

Specialty Nephrology

Date 2024 Aug 12

PMID 39131886

Authors

Chunyan Yi

Wenbo Zhang

Qunying Guo

Jianxiong Lin

Wei Chen

Haiping Mao

Xiao Yang

Affiliations

Soon will be listed here.

Abstract

Introduction: Wet contamination was a common problem of peritoneal dialysis (PD) system. We developed a management algorithm for wet contamination of PD system (wet contamination) on the basis of the related research literature and clinical practice experience. The purpose of this study was to observe clinical effect of the management algorithm on the prevention of peritonitis.

Methods: Patients treated wet contamination in a single PD center between October 2017 and September 2022 were included. A management algorithm was established to treat wet contamination. It comprised identification of the contamination type, addressing contaminated or aging catheters, prophylactic antibiotics, and retraining. Demographic data and clinical data about wet contamination were collected and compared.

Results: One hundred and forty-one cases of wet contamination were included in this study. The mean age was 51.7 ± 14.1 years, and 49.6% were female. The proportion of diabetic nephropathy was 9.9%. The median PD duration was 27.0 (1.7-79.7) months. Eighteen episodes (12.8%) of wet contamination-associated peritonitis developed after wet contamination. The main pathogenic bacteria of peritonitis were Gram-positive bacteria (33.3%) and Gram-negative bacteria (27.8%). The incidence of wet contamination-associated peritonitis in the compliance with the management algorithm group was significantly lower than that in the non-compliance with the management algorithm group (0.9 vs. 48.6%; < 0.001). Non-compliance with management algorithm (OR = 185.861, < 0.001) together with advance age (OR = 1.116, < 0.001) and longer distance from home to hospital (OR = 1.007, < 0.001) were independent risk factors for wet contamination-associated peritonitis.

Conclusion: The management algorithm for wet contamination of PD system could reduce the risk of peritonitis.

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