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Indirect and Direct Simultaneous, Comparative Blood Pressure Measurements with the Bosotron 2 ® Device
Abstract
Testing the accuracy of the automatic blood pressure measuring device Bosotron2®, we performed simultaneous, same–arm, comparative blood pressure measurements with three instruments (A, B, and C) of the device and by auscultation in the antecubital fossa by a trained observer in 24 volunteers each. The volunteers were evenly matched for age, sex, and blood pressure level. The mean systolic differences and their standard deviations (24 subjects each, n = 288 single measurements) were –1.32±3.8 mm Hg for instrument A, –0.99±3.9 mm Hg for instrument B, and –1.12±5.0 mm Hg for instrument C. The corresponding values for the diastolic differences were –2.71±4.4, –3.46±4.3, and –2.72±3.9 mm Hg, respectively. Combining the results for the three instruments, the comparison yielded a good accuracy (mean difference) and sufficient repeatability of the differences (standard deviation) for the systolic and diastolic blood pressures (systolic –1.14±4.3 mm Hg; diastolic –2.96±4.2 mm Hg). In addition to the British Hypertension Society protocol, in 33 patients with coronary artery disease the measurements using the three Bosotron 2 devices were compared with measurements within the aortic arch. The mean systolic/diastolic differences (±SD) were +1.45±4.3 and +7.27±4.7 mm Hg for instrument A, +4.70±12.8 and +1.73±7.4 mm Hg for instrument B, and –3.74±8.0 and +5.61±2.6 mm Hg for instrument C. Combining the results of the three instruments, the blood pressure was determined to be only slightly higher (systolic +1.74±9.6 mm Hg; diastolic +4.87±5.6 mm Hg) by the Bosotron 2® device as compared with the aortic arch pressure. The Bosotron 2® device seems to be suitable for clinical use and for monitoring blood pressure during clinical–pharmacological studies.
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Most cited references 1
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Systolic hypertension. Direct and indirect BP measurements
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25924 Kidney Blood Press Res 1999;22:166–171Copyright: 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.