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  • Title: Impact of peritonitis on long-term survival of peritoneal dialysis patients.
    Author: Muñoz de Bustillo E, Borrás F, Gómez-Roldán C, Pérez-Contreras FJ, Olivares J, García R, Miguel A, Grupo Levante de Diálisis Peritoneal.
    Journal: Nefrologia; 2011; 31(6):723-32. PubMed ID: 22130289.
    Abstract:
    UNLABELLED: The impact of each episode of peritonitis on long-term survival of peritoneal dialysis (PD) patients has yet to be defined. OBJECTIVES: To determine the risk that each episode of peritonitis poses for patient survival and for the PD technique. PATIENTS: 1515 patients included in the Levante registry from 1 January 1993 to 31 December 2005. METHODS: Retrospective analysis of a multicentre registry using Cox regression for time-dependent variables. RESULTS: We analysed 1609 episodes of peritonitis in 716 patients (47.2%). In the univariate analysis, each case of peritonitis treated in the outpatient unit was associated with an increase in mortality (hazard ratio [HR] 1.99, P<.001), which was greater for episodes that required hospitalisation (HR 3.62, P<.001). Mortality increased with each successive episode in the same patient. Multivariate analysis confirmed the association of each case of peritonitis with lower long-term survival (HR 2.01, P<.001), with a different risk for episodes due to gram-positive and gram-negative bacteria and fungi (HR 1.73, 2.43 and 5.71, respectively; P<.001). Other variables associated with mortality were age, low residual renal function, absence of vascular access and comorbidity. Peritonitis was the only independent variable associated with technique failure (HR 1.29, P<.001), with a different risk for episodes due to gram-positive and gram-negative bacteria and fungi (HR 1.73, 2.43 and 5.71, respectively; P<.001). CONCLUSIONS: Episodes of peritonitis negatively influence long-term survival of patients on PD.
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