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      Use and Abuse of Direct Current Shock

      Cardiology

      S. Karger AG

      Sick sinus syndrome, DC shock, Cardioversion, Atrial fibrillation, Atrial flutter, Defibrillation, Treatment of tachyarrhythmias

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          Abstract

          Direct current (DC) shock is probably the most effective method to terminate various supraventricular as well as ventricular tachyarrhythmias except those induced by digitalis. DC shock is often a life-saving measure in terminating ventricular tachycardia, flutter, and fibrillation. On the other hand, DC shock is not only ineffective in terminating digitalis-induced tachyarrhythmias, but it can also induce new cardiac arrhythmias, particularly ventricular tachycardia or fibrillation, and have a fatal outcome. The indications for DC shock can be divided into 2 major categories; namely, the treatment of acute tachyarrhythmias and elective cardioversion for chronic atrial fibrillation and flutter. About 90% of cases of atrial fibrillation are successfully converted to sinus rhythm, whereas 95–97% of cases of ventricular tachycardia can be terminated by DC shock. DC shock is most effective in terminating atrial flutter with relatively small energy discharges.

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          Author and article information

          Journal
          CRD
          Cardiology
          10.1159/issn.0008-6312
          Cardiology
          S. Karger AG
          0008-6312
          1421-9751
          1970
          1970
          29 October 2008
          : 55
          : 5
          : 310-320
          Affiliations
          Division of Cardiology, Department of Medicine, West Virginia University School of Medicine, Morgantown, W.Va.
          Article
          169294 Cardiology 1970;55:310–320
          10.1159/000169294
          5119827
          © 1970 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: 11
          Categories
          Editorial Review

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