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      Prevenzione della tolerance ai nitrati in pazienti anginosi trattati con nitroglicerina per via transdermica: Conf ronto di due schemi terapeutici (Finestra terapeutica verso riduzione di dosaggio)

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          Abstract

          We studied the long-term antianginal and anti-ischemic effects of two dosage regimens designed to prevent tolerance to transdermal nitroglycerin (TNTG): (1) 10 mg TNTG applied for 16 h with a ‘nitrate-free’ interval of 8 h; (2) 10 mg TNTG applied for 16 h followed by a ‘nitrate-low’ interval of 5 mg applied for 8 h. 129 patients completing a 3-month study period were evaluated by repeated exercise tests. Both regimens significantly increased maximum exercise duration at 3 months, from 699.1 ± 23.4 to 833 ± 21.9 s and from 686.1 ± 20 to 789.6 ± 22.6 s, respectively, reduced the number of patients with 1 mm S-T segment depression and increased the time duration to 1 mm S-T segment depression. Marked reductions in anginal attacks was observed in both groups: from 6.5 to 0.15 attacks per week and from 6.0 to 0.15 attacks per week, respectively. No statistically significant differences were found between the groups, and both regimens were well tolerated. In conclusion, our results demonstrate sustained antianginal efficacy, without tolerance, of either ‘nitrate-free’ of ‘nitrate-low’ interval therapy with transdermal nitroglycerin.

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          Author and article information

          Journal
          CRD
          Cardiology
          10.1159/issn.0008-6312
          Cardiology
          S. Karger AG
          978-3-8055-5893-8
          978-3-318-01947-6
          0008-6312
          1421-9751
          1994
          1994
          18 November 2008
          : 84
          : Suppl 1
          : 21-28
          Affiliations
          Gruppo Italiano Studio Multicentrico Deponit, Italia
          Article
          176442 Cardiology 1994;84:21–28
          10.1159/000176442
          8087821
          © 1994 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
          Pages: 8
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