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      Neural Basis for the Genesis and Control of Arrhythmias Associated with Myocardial Infarction

      ,

      Cardiology

      S. Karger AG

      Ventricular fibrillation, Vagal tone, Sympathetic tone, Cholinergics, adrenergics

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          Abstract

          Alterations of autonomic tone appear to have important effects on the electrical stability of the heart. Since altered electrical stability, ventricular fibrillation, is the cause of death in the majority of patients who die from ischemic heart disease, the effects of the autonomic nervous system on ventricular electrical stability have been examined. Increased vagal tone increases the electrical stability of the heart and reduces the incidence of spontaneous ventricular fibrillation after coronary occlusion. These salutary effects of increased cholinergic tone appear to be mediated by cholinergic innervation of the ventricular conducting system. Conversely, increased adrenergic tone decreases the electrical stability of the heart and increases the propensity of the heart to develop ventricular arrhythmias during coronary occlusion. The interaction of the adrenergic and cholinergic system during myocardial ischemia may be one of the important determinants of survival in patients with coronary artery disease and acute myocardial infarction.

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          Author and article information

          Journal
          CRD
          Cardiology
          10.1159/issn.0008-6312
          Cardiology
          S. Karger AG
          978-3-8055-2437-7
          978-3-318-02033-5
          0008-6312
          1421-9751
          1976
          1976
          29 October 2008
          : 61
          : 1
          : 61-74
          Affiliations
          Section on Experimental Physiology and Pharmacology, Cardiology Branch, National Heart and Lung Institute, National Institutes of Health, Bethesda, Md.
          Article
          169748 Cardiology 1976;61:61–74
          10.1159/000169748
          788902
          © 1976 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: 14
          Categories
          Paper

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