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      Urea Kinetics with Dialyzer Reuse – A Prospective Study

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          Abstract

          We performed a prospective study to examine the impact of dialyzer reuse on KT/V under rigidly standardized conditions on 3 membrane types. Heparin dosage was standardized with ACT during an eight week run-in period and remained unchanged through the study. Post dialysis BUN and weight were obtained at five minutes after exactly 80 ± 0.5 l of blood were processed through the dialyzer. Dialyzers were reused after automated glutaraldehyde processing and after ensuring >80% open fiber bundles. Each membrane type was utilized 3 times on a set of 3 patients; each individual dialyzer was reused 8 times. KT/V was done on the 1st, 2nd, 4th and 8th uses of each dialyzer (36 measurements) starting mid week; BUN measurements were grouped. The KT/V (mean ± SD) for the 1st, 2nd, 4th, and 8th uses of the cellulose acetate dialyzer were 1.3 ± 0.2, 1.3 ± 0.3, 1.3 ± 0.2, 1.3 ± 0.2 respectively; the corresponding values of the cuprophane dialyzer were 1.4 ± 0.3, 1.4 ± 0.3, 1.3 ± 0.4, 1.3 ± 0.3 respectively; and those of the polysulfone dialyzer 1.7 ± 0.3, 1.6 ± 0.2, 1.6 ± 0.2 respectively. By a 3 way ANOVA there were no significant differences between the 1st and subsequent uses of any of the dialyzers tested. Conclusions: Reuse of dialyzers up to 8 times does not result in a loss of urea clearance. We believe this model is useful for further studies on reuse and quality assurance.

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          Author and article information

          Journal
          AJN
          Am J Nephrol
          10.1159/issn.0250-8095
          American Journal of Nephrology
          S. Karger AG
          0250-8095
          1421-9670
          1999
          December 1999
          26 November 1999
          : 19
          : 6
          : 668-673
          Affiliations
          aState University of New York at Buffalo School of Medicine, Department of Medicine, Buffalo General Hospital, Buffalo, N.Y., bBuffalo General Hospital, Buffalo, N.Y., cState University of New York at Buffalo School of Medicine, Department of Biostatistics and Preventive Medicine, SUNY, Buffalo, N.Y., USA
          Article
          13539 Am J Nephrol 1999;19:668–673
          10.1159/000013539
          10592361
          © 1999 S. Karger AG, Basel

          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.

          Page count
          Tables: 3, References: 28, Pages: 6
          Product
          Self URI (application/pdf): https://www.karger.com/Article/Pdf/13539
          Categories
          Clinical Study

          Cardiovascular Medicine, Nephrology

          KT/V, Dialyzer reuse

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