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      About Blood Purification: 2.2 Impact Factor I 5.8 CiteScore I 0.782 Scimago Journal & Country Rank (SJR)

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      Analysis of Risk Factors for Catheter-Related Bacteremia in 2000 Permanent Dual Catheters for Hemodialysis

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          Abstract

          Background: Infection constitutes a leading cause of morbidity and mortality in hemodialysis (HD) patients. The type of vascular access is an important determinant of the risk of infection. Therefore, identification of risk factors leading to catheter-related bacteremia (CRB) is strongly required. The aim of this prospective large cohort study of HD patients using only catheters as vascular access was to isolate risk factors for CRB. Methods: 2,230 permanent silicone dual catheters implanted in 1,749 patients between November 1982 and November 2005 were studied. The following data were collected at the time of catheter implantation: presence of hypertension, diabetes mellitus, obesity, atherosclerosis, immunodepression, Wright-Khan index, site and side of catheter insertion, and history of bacteremia. Results: The site of catheter insertion was internal jugular (n = 2,133), subclavian (n = 79) and femoral (n = 17). Duration of catheter use was as follows: 30–90 days (n = 1,607) and >90 days (n = 1,054); 226 episodes of bacteremia occurred in 197 catheters. Microorganisms responsible were mainly Staphylococcus aureus, coagulase-negative staphylococci, Enterobacter spp. and Pseudomonas aeruginosa. The overall incidence of bacteremic episodes was 0.514/1,000 catheter days. Hypertension, atherosclerosis, diabetes mellitus, site of catheter implantation, duration of catheter use, Wright-Khan comorbidity index and previous history of CRB were significant risk factors associated with bacteremia in univariate analysis. Multivariate analysis revealed that a previous history of a bacteremic episode (odds ratio, OR = 2.70, 95% confidence interval, CI = 1.56–4.68), diabetes mellitus (OR = 2.37, 95% CI = 1.65–3.39), duration of catheter use >90 days (OR = 1.85, 95% CI = 1.35–2.55) and hypertension (OR = 1.49, 95% CI = 1.08–2.04) were still significant factors associated with bacteremia. Conclusion: Reducing CRB is still a challenge for nephrologists to reduce patient morbidity and mortality. Our study could demonstrate that diabetes, previous history of CRB, site of catheter implantation and duration of catheter use were the most important risk factors for bacteremia. Therefore, to prevent CRB, particular attention should be paid to patients with diabetes and a previous history of bacteremia following strict hygienic and aseptic rules for catheter handling associated with the regular use of antiseptic lock solutions.

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          Vascular access and increased risk of death among hemodialysis patients.

          J Michael Soucie, Stephen Pastan, W McClellan (2002)
          Hemodialysis with a venous catheter increases the risk of infection. The extent to which venous catheters are associated with an increased risk of death among hemodialysis patients has not been extensively studied. We conducted a retrospective cohort study of 7497 prevalent hemodialysis patients to assess the association between dialysis with a venous catheter and risk of death due to all causes and to infection. A tunneled cuffed catheter was used for access in 12% of the patients and non-cuffed, not tunneled catheter in 2%. Younger age (P = 0.0005), black race (P = 0.0022), female gender (P = 0.0004), short duration since starting dialysis (P = 0.0003) and impaired functional status (P = 0.0001) were independently associated with increased use of catheter access. The proportion of patients who died was higher among those who were dialyzed with a non-cuffed (16.8%) or cuffed (15.2%) catheter compared to those dialyzed with either a graft (9.1%) or a fistula (7.3%; P < 0.001). The proportion of deaths due to infection was higher among patients dialyzed with a catheter (3.4%) compared to those dialyzed with either a graft (1.2%) or a fistula (0.8%; P < 0.001). The adjusted odds ratio (95% CI) for all-cause and infection-related death among patients dialyzed with a catheter was 1.4 (1.1, 1.9) and 3.0 (1.4, 6.6), respectively, compared to those with an arteriovenous (AV) fistula. Venous catheters are associated with an increased risk of all-cause and infection-related mortality among hemodialysis patients.
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            Impact of dialysis dose and membrane on infection-related hospitalization and death: results of the HEMO Study.

            Michael Allon, Thomas Depner, Milena Radeva … (2003)
            Infection is the second most common cause of death among hemodialysis patients. A predefined secondary aim of the HEMO study was to determine if dialysis dose or flux reduced infection-related deaths or hospitalizations. The effects of dialysis dose, dialysis membrane, and other clinical parameters on infection-related deaths and first infection-related hospitalizations were analyzed using Cox regression analysis. Among the 1846 randomized patients (mean age, 58 yr; 56% female; 63% black; 45% with diabetes), there were 871 deaths, of which 201 (23%) were due to infection. There were 1698 infection-related hospitalizations, yielding a 35% annual rate. The likelihood of infection-related death did not differ between patients randomized to a high or standard dose (relative risk [RR], 0.99 [0.75 to 1.31]) or between patients randomized to high-flux or low-flux membranes (RR, 0.85 [0.64 to 1.13]). The relative risk of infection-related death was associated (P < 0.001 for each variable) with age (RR, 1.47 [1.29 to 1.68] per 10 yr); co-morbidity score (RR, 1.46 [1.21 to 1.76]), and serum albumin (RR, 0.19 [0.09 to 0.41] per g/dl). The first infection-related hospitalization was related to the vascular access in 21% of the cases, and non-access-related in 79%. Catheters were present in 32% of all study patients admitted with access-related infection, even though catheters represented only 7.6% of vascular accesses in the study. In conclusion, infection accounted for almost one fourth of deaths. Infection-related deaths were not reduced by higher dose or by high flux dialyzers. In this prospective study, most infection-related hospitalizations were not attributed to vascular access. However, the frequency of access-related, infection-related hospitalizations was disproportionately higher among patients with catheters compared with grafts or fistulas.
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              Risk of infection due to central venous catheters: effect of site of placement and catheter type.

              John M. Miller, Brant M. Wagener, R R Muder … (1998)
              To determine the influence of catheter site and type (single- vs triple-lumen) on infection rates associated with central venous catheterization. Prospective observational study of all nontunneled central venous catheters over a 28-month period. Data collected included patient characteristics, insertion site, catheter type, and receipt of parenteral nutrition. End points were clinical infection (bacteremia or site infection) and catheter contamination (clinical infection or colonization with >15 colonies on semiquantitative culture). Medical-surgical wards of Veterans' Affairs hospital. Three hundred catheters were inserted into 204 patients. Seventy percent were inserted into upper-body sites, and 30% were inserted into the femoral vein. Forty-five percent were triple-lumen catheters. Bacteremia occurred in 2.7% of catheter insertions; insertion-site infections developed in 1.3%, and catheter colonization developed in 12%. Catheter contamination was associated with emergent insertion (odds ratio [OR], 6.2; 95% confidence interval [CI95], 1.1-36.7; P=.04) by logistic regression and with femoral location (hazard, 4.2; CI95, 2.0-8.8; P=.0001) and history of transplantation (hazard, 2.8; CI95, 1.1-6.7; P=.024) by Cox regression. Clinical infection was not associated with any of the risk factors evaluated, although there was a trend for association with femoral location by Cox regression (hazard, 4.7; CI95, 0.82-26; P=.08). We did not identify an association between infection and use of triple-lumen catheters or parenteral nutrition. Our data support an association between intravenous catheter contamination and insertion at a femoral site.
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                Author and article information

                Journal
                Journal ID (publisher-id): BPU
                Journal ID (nlm-ta): Blood Purif
                Journal ID (doi): 10.1159/issn.0253-5068
                Title: Blood Purification
                Publisher: S. Karger AG
                ISSN (Print): 0253-5068
                ISSN (Electronic): 1421-9735
                Publication date Subscription-year: 2009
                Publication date (Print): July 2009
                Publication date (Electronic): 27 March 2009
                Volume: 28
                Issue: 1
                Pages: 21-28
                Affiliations
                aService de Néphrologie, Hémodialyse et Soins Intensifs, CHU Lapeyronie, and bInstitut de Recherche et de Formation en Dialyse, Montpellier, and cDépartement Informatique Médicale, CHU Caremeau, Nîmes, France
                Article
                Publisher ID: 210034 Other ID: Blood Purif 2009;28:21–28
                DOI: 10.1159/000210034
                PubMed ID: 19325236
                SO-VID: 9884c8d8-6033-4f3f-b396-875fdcb90517
                Copyright © © 2009 S. Karger AG, Basel
                License:

                Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

                History
                Date received : 01 February 2008
                Date accepted : 15 October 2008
                Page count
                Figures: 6, Tables: 4, References: 34, Pages: 8
                Categories
                Subject: Original Paper

                ScienceOpen disciplines: Cardiovascular Medicine,Nephrology
                Keywords: Infection,Bacteremia,Catheter,Hemodialysis
                Data availability:
                ScienceOpen disciplines: Cardiovascular Medicine, Nephrology
                Keywords: Infection, Bacteremia, Catheter, Hemodialysis

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