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      Hyporeninemic Hypoaldosteronism in Patients with Nephrotic Syndrome

      case-report
      ,
      American Journal of Nephrology
      S. Karger AG
      Hyporeninemic hypoaldosteronism, Nephrotic syndrome

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          Abstract

          Five nephrotic patients, who did not present sodium retention when on sodium balance, have been studied. All had membranous nephropathy, were normotensive and renal function was normal in 2 and slightly reduced in 3. The following parameters were measured: 24-hour excretion of aldosterone, the response of plasma renin activity (PRA) and of plasma aldosterone to upright posture, postural changes of the fractional excretion of sodium and lithium, and natriuretic response to spironolactone. The resting values of plasma aldosterone were low in all patients, and after stimulation by upright posture they increased hardly to the low-normal limit only in 1 patient. Resting PRA was normal in all patients and increased slightly, after stimulation. The 24-hour urinary excretion of aldosterone was low in 4 patients and borderline in 1. No natriuretic response to spironolactone was observed in any patients. After upright posture the fractional excretions of sodium and lithium decreased significantly and to the same extent in all patients. Four nephrotic patients with fluctuating, spontaneous episodes of sodium retention and of sodium excretion have been studied as controls. These patients had normal values of urinary aldosterone and of resting PRA and aldosterone. After upright posture the changes of PRA and of aldosterone were clearly evident in 2, and exaggerated in the other 2 patients. In these patients, a significant increase of sodium excretion occurred after treatment with spironolactone. These results suggest that a not negligible number of patients with nephrotic syndrome have hyporeninemic hypoaldosteronism. This diagnosis should be taken into account when investigating the role of aldosterone in sodium retention in nephrotic syndrome.

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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
          1998
          June 1998
          06 May 1998
          : 18
          : 3
          : 251-255
          Affiliations
          Servizio di Nefrologia e Dialisi, Ospedale di Leno, Italia
          Article
          13347 Am J Nephrol 1998;18:251–255
          10.1159/000013347
          9627045
          3f11761d-7c59-44f5-829d-8c96cc556851
          © 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.

          History
          Page count
          Tables: 3, References: 14, Pages: 5
          Categories
          Case Report

          Cardiovascular Medicine,Nephrology
          Nephrotic syndrome,Hyporeninemic hypoaldosteronism
          Cardiovascular Medicine, Nephrology
          Nephrotic syndrome, Hyporeninemic hypoaldosteronism

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