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  • Title: Infecting organisms in continuous ambulatory peritoneal dialysis patients on the Y-set.
    Author: Holley JL, Bernardini J, Piraino B.
    Journal: Am J Kidney Dis; 1994 Apr; 23(4):569-73. PubMed ID: 8154494.
    Abstract:
    Disconnect systems for performing continuous ambulatory peritoneal dialysis (CAPD) use a flush-before-fill technique that should theoretically reduce the peritonitis caused by touch contamination. However, little information about the infecting organisms in CAPD-related infections using disconnect systems is available. We performed a retrospective matched-case controlled study to define the organisms responsible for the peritonitis and catheter infections seen in CAPD patients using the Y-set without disinfectant. One hundred nineteen patients who began CAPD on the Y-set were matched with 119 patients who began CAPD on the standard spike system. Patients were matched for age, sex, race, insulin dependence, and time on CAPD. Infection data were prospectively collected for all patients. Peritonitis, exit site, and tunnel infection rates (expressed as number of episodes per patient-year) were all significantly lower in the Y-set patients (0.56 v 0.94, 0.68 v 1.08, and 0.14 v 0.22, respectively). The lower peritonitis rate in the Y-set patients compared with that found in the standard spike system patients was due to a reduction in Staphylococcus epidermidis (0.17 v 0.26, P = 0.02), polymicrobial (0.014 v 0.06, P = 0.01), other gram-positive (0.007 v 0.09, P = 0.001), and sterile (0.10 v 0.19, P = 0.008) peritonitis. Rates of Staphylococcus aureus and gram-negative peritonitis were not different among the two groups. S epidermidis (0.12 v 0.23, P = 0.0014) and gram-negative (0.12 v 0.18, P = 0.04) exit site infection rates were also lower in the Y-set patients.(ABSTRACT TRUNCATED AT 250 WORDS)
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