Atrial Natriuretic Factor Production during Upright Exercise

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Abstract

In an attempt to determine factors that are related to atrial natriuretic factor (ANF) release in normal subjects, 10 male volunteers were studied at rest supine, sitting and during treadmill exercise. Echocardiography was used to measure atrial volumes, and a Swan-Ganz catheter was used to measure right atrial pressure and pulmonary artery wedge pressure. Right ventricular ANF increased from 33 ± 22 pg/ml supine to 72 ± 32 pg/ml at peak exercise (p < 0.001). When heart rate, atrial volume and atrial phasic pressure were combined to calculate atrial minute circumferential wall stress, a significant relationship between left and right atrial values for this variable and ANF was present. An association between norepinephrine (NE) and ANF was also present, but in a multivariate analysis it was not significant. This probably does not represent cause and effect but rather an association due to the relationship between NE and heart rate.

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Journal

Journal ID (publisher-id): CRD

Journal ID (nlm-ta): Cardiology

Journal ID (doi): 10.1159/issn.0008-6312

Title: Cardiology

Publisher: S. Karger AG

ISSN (Print): 0008-6312

ISSN (Electronic): 1421-9751

Publication date Subscription-year: 1990

Publication date (Print): 1990

Publication date (Electronic): 12 November 2008

Volume: 77

Issue: 6

Pages: 433-442

Affiliations

Department of Medicine, University of Colorado, Health Sciences Center, Denver, Colo., USA

Article

Publisher ID: 174635 Other ID: Cardiology 1990;77:433–442

DOI: 10.1159/000174635

PubMed ID: 2150010

SO-VID: 8fcf9011-a493-48c0-a99d-243872575a1f

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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

Date received : 05 March 1990

Date accepted : 07 June 1990

Page count

Pages: 10

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