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      Coronary Angiographic Features within 48 Hours from Onset of Non-Q Wave Myocardial Infarction with R Wave Regression and No ST Segment Depression

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          Abstract

          The clinical features of acute non-Q wave myocardial infarction (NQMI) with R wave regression and no ST segment depression are distinct from those of acute Q wave myocardial infarction (QMI). NQMI patients showed ST segment elevation at admission, and significantly earlier regression of the ST segment elevation and appearance of coronary T waves were observed compared to QMI patients. In addition to the significantly lower level of mean peak serum creatine kinase activity and the significantly lower incidence of pump failure during the acute phase, the incidences of in-hospital mortality and multivessel disease were significantly lower in the NQMI patients. With respect to acute-phase coronary angiographic features within 48 h after the onset, the rate of spontaneous opening of infarct-related vessels was significantly higher in the NQMI patients. Thirteen of the 19 NQMI patients responded to urokinase infusion. These facts suggest that transient, intermittent or incomplete obstruction may favor this type of NQMI over QMI, and that thrombus might be an important factor in the pathogenesis of this type of NQMI.

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          Author and article information

          Journal
          CRD
          Cardiology
          10.1159/issn.0008-6312
          Cardiology
          S. Karger AG
          0008-6312
          1421-9751
          1990
          1990
          12 November 2008
          : 77
          : 2
          : 121-129
          Affiliations
          aDivision of Cardiology, Sakurabashi-Watanabe Hospital and bThe Third Department of Internal Medicine, Osaka University Medical School, Osaka, Japan
          Article
          174592 Cardiology 1990;77:121–129
          10.1159/000174592
          2118828
          4f799b17-43f0-4a34-9552-edc4bcdaece7
          © 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.

          History
          : 23 August 1989
          : 04 January 1990
          Page count
          Pages: 9
          Categories
          Original Paper

          General medicine,Neurology,Cardiovascular Medicine,Internal medicine,Nephrology
          Vasospasm,Intracoronary thrombus,Opening of infarct-related vessel,Low-grade stenosis

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