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Title: Blood pressure measurements in research: suitability of auscultatory, beat-to-beat, and ambulatory blood pressure measurements
Contributor(s): Carlson, Debra J (author); Dieberg, Gudrun  (author)orcid ; McFarlane, James R  (author); Smart, Neil A  (author)orcid 
Publication Date: 2019-02-01
Open Access: Yes
DOI: 10.1097/MBP.0000000000000355Open Access Link
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Abstract: Objective The objective of this study was to validate the accuracy of beat-to-beat measurements with those taken with an aneroid sphygmomanometer by auscultatory method. A secondary aim was to explore differences between auscultatory and beat-to-beat blood pressure (BP) with daytime ambulatory BP measurements. Participants and methods A total of 46 participants, comprising 21 males, aged 47± 13 years, height 171± 8.5 cm and weight 82 ± 16.8 kg attended the Exercise Physiology Laboratory at the University of New England (Armidale, New South Wales, Australia). During the visit, participants had their BP – systolic BP (SBP) and diastolic BP (DBP) – measured using auscultatory methods and a Finometer. An ambulatory BP monitor was fitted during the same visit and worn for a minimum of 12 h. Results Auscultatory measurements were slightly higher than beat-to-beat for both SBP and DBP. There was no difference between auscultatory and beat-to-beat SBP with a mean difference of 0.23 mmHg (P = 0.87). There were disparities between auscultatory and beat-to-beat DBP, with a mean difference of 4.82 mmHg (P < 0.01). Daytime ambulatory BP was higher than both auscultatory and beat-to-beat measurements for both SBP and DBP, with P less than 0.001 for all measures. Conclusion There was a high level of reliability in the beat-to-beat SBP with that seen by auscultatory; however, there were disparities in DBP measurements using the same devices, which raise concerns over the accuracy of beat-to-beat DBP. Ambulatory systolic and diastolic measures were higher than beat-to-beat and auscultatory; however, they may be more suitable for monitoring diurnal changes in BP, depending upon the research model.
Publication Type: Journal Article
Source of Publication: Blood Pressure Monitoring, 24(1), p. 18-23
Publisher: Lippincott Williams & Wilkins
Place of Publication: United States of America
ISSN: 1359-5237
Field of Research (FOR): 110201 Cardiology (incl. Cardiovascular Diseases)
110602 Exercise Physiology
Socio-Economic Outcome Codes: 920103 Cardiovascular System and Diseases
970111 Expanding Knowledge in the Medical and Health Sciences
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article
School of Science and Technology

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