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. 2021 Nov-Dec;31(6):511-515.
doi: 10.4103/ijn.IJN_238_20. Epub 2020 Nov 11.

Catheter-related Infections and Microbiological Characteristics in Coiled Versus Straight Peritoneal Dialysis Catheters in Malaysia

Anna M Abdul Rashid  1 , Christopher T S Lim  2
Affiliations

Catheter-related Infections and Microbiological Characteristics in Coiled Versus Straight Peritoneal Dialysis Catheters in Malaysia

Anna M Abdul Rashid et al. Indian J Nephrol. 2021 Nov-Dec.

Abstract

Background: Catheter-related infections remain a threat in peritoneal dialysis (PD) patients. Attempts to improve catheter insertion techniques and catheter type with best infectious outcomes yield heterogenous results. We seek to determine catheter-related infections in two different types of catheters and its microbiological spectrum.

Methods: Retrospective cross-sectional study conducted in Hospital Serdang, Malaysia. We included end-stage renal disease (ESRD) patients who opted for PD and examined catheter-related infections (peritonitis, exit site infection, and tunnel tract infection) and organisms causing these infections.

Results: We included 126 patients in this study; 75 patients received the coiled PD catheter (59.5%) and 51 patients received the straight PD catheter (40.5%). The majority of patients were young, under the age of 65 years old (77.3% and 72.5%) in the coiled and straight PD catheter group, respectively, and the main cause of ESRD was diabetes mellitus in both groups (78.7% vs. 92.2%). The demographic and anthropometric data were similar between both groups. Peritonitis rate (0.29 episodes/patient-years vs. 0.31 episodes/patient-years, P value = 0.909), exit site infection rate (0.31 episodes/patient-year vs. 0.37 episodes/patient-year, P value = 0.730), and tunnel tract infection rate (0.02 episodes/patient-year, P value = 0.430) were similar in the coiled versus straight PD catheter groups. The predominant organism causing peritonitis was the gram-negative organism; Escherichia coli and Klebsiella pneumoniae. In exit site and tunnel tract infections, there is a predominance of gram-negative organisms; Pseudomonas aeruginosa and K. pneumoniae.

Conclusions: There was no difference in infectious outcomes between the two different types of catheters. Type of organism in both groups was gram-negative.

Keywords: Exit site infection; microbiological spectrum; peritoneal dialysis; peritonitis; tunnel tract infection.

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Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1
Figure 1
(a) Organisms causing peritonitis in the coiled PD catheter and (b) organisms causing peritonitis in the straight PD catheter
Figure 2
Figure 2
(a) Organisms causing exit site infection in the coiled PD catheter and (b) organisms causing exit site infection in the straight PD catheter
See this image and copyright information in PMC

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