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      Color Doppler Tissue Velocity Imaging Demonstrates Significant Asynchronous Regional Left Ventricular Contraction and Relaxation in Patients with Bundle Branch Block and Heart Failure Compared with Control Subjects

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      Cardiology

      S. Karger AG

      Heart failure, Bundle branch block, Asynchrony, Tissue Doppler

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          Abstract

          Bundle branch block in patients with severe heart failure (HF) may result in asynchronous regional left ventricular (LV) contraction. Colour Doppler tissue velocity imaging (c-TVI) allows tissue velocity profiles to be measured with a resolution of 10 ms. Normal subjects (n = 30) showed a synchronous regional longitudinal LV pattern of movement, and HF patients with bundle branch block (n = 30) showed asynchronous contraction and relaxation patterns which were quantified by c-TVI as ranging from –22 to 19 ms. This asynchronous LV contraction probably contributes to the deterioration of LV function in HF patients.

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          Tissue doppler imaging predicts improved systolic performance and reversed left ventricular remodeling during long-term cardiac resynchronization therapy

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            Author and article information

            Journal
            CRD
            Cardiology
            10.1159/issn.0008-6312
            Cardiology
            S. Karger AG
            0008-6312
            1421-9751
            2004
            October 2004
            15 October 2004
            : 102
            : 4
            : 220-227
            Affiliations
            Institute of Medicine, Department of Cardiology, Haukeland University Hospital, Bergen, Norway
            Article
            81014 Cardiology 2004;102:220–227
            10.1159/000081014
            15452395
            © 2004 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
            Figures: 5, Tables: 3, References: 21, Pages: 8
            Categories
            Diagnostic Cardiology

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