17
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found

      Vector Display of Cardiac Performance

      research-article

      Read this article at

      ScienceOpenPublisherPubMed
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Cardiac performance analysis consisting of X-Y display of ventricular pressure and flow or of their derivatives, in the form of vector loops is described. Three vector loops are described: pressure-flow (P-F) loop, pressure-pressure derivative (P-dP/dt) loop, and pressure-flow acceleration (P-dF/dt) loop. Information from these loops include: stroke power, stroke work, initial impedance to ventricular ejection, and time-course of flow and flow acceleration during early ejection. In addition, (dP/dt)P<sup>-1</sup> at the onset of systole is derived from the P-dP/dt loop to estimate the force generating power of the ventricle as an expression of myocardial contractility.

          Related collections

          Author and article information

          Journal
          CRD
          Cardiology
          10.1159/issn.0008-6312
          Cardiology
          S. Karger AG
          0008-6312
          1421-9751
          1974
          1974
          29 October 2008
          : 59
          : 2
          : 102-113
          Affiliations
          Cardiology Section, Department of Pediatrics, and Cardiovascular Section, Department of Surgery, Pritzker School of Medicine, University of Chicago, Chicago, III.
          Article
          169669 Cardiology 1974;59:102–113
          10.1159/000169669
          4279769
          c14d10e1-b4a0-4d50-b96a-0cc3ca0a4f19
          © 1974 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.

          History
          Page count
          Pages: 12
          Categories
          Paper

          General medicine,Neurology,Cardiovascular Medicine,Internal medicine,Nephrology
          Stroke work,Cardiac performance,Flow acceleration,Stroke power,Contractility,Output impedance

          Comments

          Comment on this article