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      Accelerated Venovenous Hemofiltration as a Transitional Renal Replacement Therapy in the Intensive Care Unit

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          Abstract

          Background: Continuous renal replacement therapy (CRRT) is commonly employed in the intensive care unit (ICU), though there are no guidelines around the transition between CRRT and intermittent hemodialysis (iHD). Accelerated venovenous hemofiltration (AVVH) is a modality utilizing higher hemofiltration rates (4–5 L/h) with shorter session durations (8–10 h) to “accelerate” the clearance and volume removal that normally is spread out over a 24-h period in CRRT. We examined AVVH as a transition therapy between CRRT and iHD, with the aim of decreasing time on CRRT and providing a more graduated transition for hemodynamically unstable patients requiring RRT. Methods: Retrospective cohort study describing the clinical outcomes and quality initiative experience of the integration of AVVH into the CRRT program at an academic tertiary care center. Outcomes of interest included mortality, ICU length of stay and readmission rates, and technical characteristics of treatments. Results: In total, 97 patients received a total of 298 AVVH treatments (3.1 ± 3.3 treatments per patient). Totally, 271/298 (91%) treatments were completed successfully. During an average treatment time of 9.5 ± 1.6 h with 4.2 ± 0.5 L/h ­replacement fluid rate, urea reduction ratio was 23 ± 26% per 10-h treatment, and net ultrafiltration volume was 2.4 ± 1.3 L/treatment. Inpatient mortality was 32%, mean total hospital length of stay was 54 ± 47 days. Sixty-four out of 97 (66%) patients recovered renal function by discharge. Among those who transferred out of the ICU, 7/62 (11%) patients required readmission to the ICU after developing hypotension on iHD. Conclusion: AVVH can serve as a transition therapy between CRRT and iHD in the ICU and has the potential to decrease total time on CRRT, improve patient mobility, and sustain low ICU readmission rates. Future study is needed to analyze the implications on resource use and cost of this modality.

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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
          2020
          April 2020
          25 February 2020
          : 51
          : 4
          : 318-326
          Affiliations
          aDivision of Nephrology, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
          bDivision of Nephrology, Associates of Mobile, Mobile, Alabama, USA
          cDivision of Nephrology, Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts, USA
          dDepartment of Nursing, Massachusetts General Hospital, Boston, Massachusetts, USA
          eDepartment of Pharmacy, Massachusetts General Hospital, Boston, Massachusetts, USA
          fDivision of Nephrology, Department of Medicine, New York University Langone Medical Center, New York, New York, USA
          Author notes
          *Andrew S. Allegretti, Division of Nephrology, Department of Medicine, Massachusetts General Hospital, 55 Fruit Street, GRB 1008, Boston, MA 02114 (USA), E-Mail aallegretti@mgh.harvard.edu.
          Article
          506412 Am J Nephrol 2020;51:318–326
          10.1159/000506412
          32097936
          © 2020 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
          Figures: 1, Tables: 4, Pages: 9
          Categories
          Patient-Oriented, Translational Research: Research Article

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