Document Detail

Evaluation of digital blood pressure measured with the Omron F3 device as an index of brachial arterial pressure, under different thermal and hormonal conditions.
MedLine Citation:
PMID:  11550104     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Devices that record from the finger have potential practical advantages for home monitoring of blood pressure. However, digital arterial pressure may vary substantially from that in the brachial artery, due to the influence of peripheral wave reflection. AIMS: (1) To compare digital arterial pressure, as measured with the Omron F3 device, with brachial arterial pressure and (2) to determine the effect on digital pressure of changing local vascular resistance. METHOD: The subjects were normotensive young adult non-smokers (12 males, 14 females). Pressures were recorded simultaneously from arm (using an Omron HEM-705CP) and finger with subjects seated and both recording sites at the level of the xiphisternum. Measurements were made at ambient temperatures of 19 degrees C and 30 degrees C; at rest, during brief contralateral hand cooling and after hand rewarming. RESULTS: In many cases, resting finger values differed substantially from arm values; sometimes by 20 mm Hg or more. The extent of individual variations was not correlated with gender or temperature. However, group pressure differences between the sites were greater in females at ovulation than at menstruation and greater at 30 degrees C than at 19 degrees C. For all groups, pressure differences between sites were attenuated during hand cooling and restored by rewarming. CONCLUSIONS: Finger blood pressure, as measured with the Omron F3, misestimates brachial blood pressure in a high proportion of normal subjects. This error is increased under circumstances associated with cutaneous vasodilation. The Omron F3 does not appear to be suitable for unsupervised home monitoring of blood pressure.
E Tansey; C Bell
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Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  Journal of human hypertension     Volume:  15     ISSN:  0950-9240     ISO Abbreviation:  J Hum Hypertens     Publication Date:  2001 Sep 
Date Detail:
Created Date:  2001-09-10     Completed Date:  2001-10-11     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8811625     Medline TA:  J Hum Hypertens     Country:  England    
Other Details:
Languages:  eng     Pagination:  593-600     Citation Subset:  IM    
Department of Physiology, Trinity College Dublin, Ireland.
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MeSH Terms
Arteries / physiology*
Blood Pressure / physiology*
Blood Pressure Determination / instrumentation
Brachial Artery / physiology*
Fingers / blood supply*,  physiology*
Hormones / physiology*
Reference Values
Regional Blood Flow / physiology
Reproducibility of Results
Vascular Resistance / physiology
Reg. No./Substance:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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