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      Improvement of Uremic Autonomic Dysfunction after Renal Transplantation: A Heart Rate Variability Study

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          Abstract

          Autonomic dysfunction in hemodialysis patients is one of the components of uremic neuropathy. In this prospective study, we investigated the effect of renal transplantation on uremic autonomic dysfunction with long-term time-domain and frequency-domain heart rate variability. Fourteen hemodialysis patients (10 male, 4 female; mean age 33 ± 11 (range 16–50) years) were examined before and at the early after transplantation period (mean 4.6 ± 1.5 (range 3–7.5) months). The mean time spent on hemodialysis was 16.7 ± 15.6 (range 6–65) months. In time-domain analysis, significant increases in all parameters except pNN50 (SD, SDANN, SDNN, rMSSD) were observed after renal transplantation (p < 0.01). In frequency-domain analysis, low-frequency (LF) (0.04–0.15 Hz) and high-frequency (HF) (0.15–0.40 Hz) spectral power were found to be significantly increased after renal transplantation (4.54 ± 1.04 vs. 12.58 ± 8.69 for LF (p = 0.005), 2.80 ± 1.0 vs. 6.50 ± 3.55 for HF (p = 0.005)), but the LF/HF ratio was not different from a pretransplant period (1.71 ± 0.349 vs. 1.85 ± 0.49, p = 0.26). It was concluded that autonomic dysfunction in hemodialysis patients is reversible and renal transplantation reverses the sympathetic and parasympathetic autonomic dysfunction simultaneously and at a relatively early stage.

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          Author and article information

          Journal
          NEF
          Nephron
          10.1159/issn.1660-8151
          Nephron
          S. Karger AG
          1660-8151
          2235-3186
          1998
          September 1998
          04 September 1998
          : 80
          : 1
          : 57-60
          Affiliations
          a Department of Internal Medicine, Division of Nephrology and b Cardiovascular Research Center, Istanbul University, Istanbul School of Medicine, Istanbul, Turkey
          Article
          45126 Nephron 1998;80:57–60
          10.1159/000045126
          9730704
          © 1998 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: 2, References: 20, Pages: 4
          Product
          Self URI (application/pdf): https://www.karger.com/Article/Pdf/45126
          Categories
          Original Paper

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