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      Supraventricular Tachycardia: Diagnosis and Treatment

      ,

      Cardiology

      S. Karger AG

      Dual pathways, Reentry, AV node, Perinodal, AV node ablation

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          Abstract

          Specific mechanisms of supraventricular tachycardia include sinoatrial, intra-atrial, atrioventricular (AV) nodal as well as concealed and manifest bypass tract reentry. In dual pathway reentry, at least one of the pathways involves the AV node, usually the slow pathway and the other pathway, perinodal fibers within the atria. Localization of the perinodal fibers is critical for ablative procedures to eliminate AV nodal tachycardias. Other mechanisms of supraventricular tachycardia include chaotic atrial tachycardia and automatic atrial tachycardia with and without AV block. However, drug therapy includes intravenous adenosine 6 mg, as well as the older standbys of digoxin, calcium and β-blocking agents, and type la and lc antiarrhythmias. In resistance cases, amiodarone is usually effective. However, for incessant supraventricular mechanisms, catheter or surgical ablative techniques are recommended to eliminate long-term drug administration.

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          Author and article information

          Journal
          CRD
          Cardiology
          10.1159/issn.0008-6312
          Cardiology
          S. Karger AG
          978-3-8055-5308-7
          978-3-318-02035-9
          0008-6312
          1421-9751
          1990
          1990
          12 November 2008
          : 77
          : 3
          : 259-268
          Affiliations
          Hahnemann University, Division of Cardiovascular Diseases, Philadelphia, Pa., USA
          Article
          174606 Cardiology 1990;77:259–268
          10.1159/000174606
          2272062
          © 1990 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: 10
          Categories
          Management of Cardiac Arrhythmias-UPDATE 1990

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