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      Morning Increase of Onset of Myocardial Infarction

      Cardiology

      S. Karger AG

      Plaque rupture, Morning increase, Myocardial infarction, Platelet aggregability

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          Abstract

          During the past 5 years it has been clearly established that there is a prominent morning increase in the frequency of onset of acute myocardial infarction. Similar increases have also been observed for the related conditions of sudden cardiac death, stroke and episodes of transient myocardial ischemia. The period from 6 a.m. to noon is also a time when a number of physiologic processes that could contribute to the onset of coronary thrombosis are intensified. Arterial pressure, which could lead to plaque rupture, rises; coronary tone increases; and platelet aggregability, which could contribute to a hypercoagulable state, increases. The immediate significance of these observations is the emphasis that should be placed on pharmacologic protection of patients during the morning hours. The primary longer-term significance of the recognition of the morning increase of onset of acute cardiovascular disease is the contribution it makes to the concept that onset of coronary thrombosis at any time of the day is frequently triggered by the activities of the patient. Investigation of this possibility may yield more information about the mechanism of disease onset and facilitate design of more effective preventive therapy.

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          Author and article information

          Journal
          CRD
          Cardiology
          10.1159/issn.0008-6312
          Cardiology
          S. Karger AG
          978-3-8055-5038-3
          978-3-318-01533-1
          0008-6312
          1421-9751
          1989
          1989
          11 November 2008
          : 76
          : 2
          : 96-104
          Affiliations
          Brigham and Women’s Hospital, Harvard Medical School, Boston, Mass., USA
          Article
          174480 Cardiology 1989;76:96–104
          10.1159/000174480
          2568181
          © 1989 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: 9
          Categories
          Recent Advances in the Management of Patients with Acute Myocardial Infarction

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