Document Detail


Validation of the A&D wrist-cuff UB-511 (UB-512) device for self-measurement of blood pressure.
MedLine Citation:
PMID:  17106320     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: To determine the accuracy of the A&D UB-511 (UB-512) oscillometric wrist-cuff device for self-measurement of blood pressure, the only difference between the two devices being the size of storage memory. METHODS: Device evaluation was performed according to the modified British Hypertension Society protocol released in 1993. Eighty-five study participants with characteristics outlined in the British Hypertension Society protocol were recruited among those attending our out-patient clinic. The device was evaluated according to the various steps of the protocol. The non-dominant arm was used for blood pressure measurement. To maintain the wrist at cardiac level during validation, the arm was kept horizontal at the mid-sternum level and supported by a soft table. The wrist was kept extended. Sequential readings were taken for the main validation test. Outcome was classified according to the criteria of the British Hypertension Society recommendations, which are based on four strata of accuracy differing from the mercury standard by 5, 10 and 15 mmHg, or more. RESULTS: The device achieved a British Hypertension Society grade B for systolic and a grade B for diastolic blood pressure. The device tended to overestimate arm blood pressure, the mean difference (+/-1 SD) between device and observers being 4.3+/-8.7 mmHg for systolic blood pressure and 3.7+/-8.1 mmHg for diastolic blood pressure for observer 2, and 4.4+/-8.6 mmHg for systolic blood pressure and 3.8+/-7.9 mmHg for diastolic blood pressure for observer 1. In a logistic regression analysis, age was the sole predictor of an achieved difference between device and mercury column by 5 mmHg or less (hazard ratio 1.020; 95% confidence interval 1.003-1.04; P=0.024). CONCLUSIONS: These data show that the A&D UB-511 (UB-512) device satisfies the British Hypertension Society recommendations with a grade B/B. The device tends to overestimate cuff blood pressure and its accuracy increases with age.
Authors:
Fabio Angeli; Mariagrazia Sardone; Enrica Angeli; Salvatore Repaci; Roberto Gattobigio; Paolo Verdecchia
Publication Detail:
Type:  Clinical Trial, Phase I; Clinical Trial, Phase II; Clinical Trial, Phase III; Clinical Trial, Phase IV; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Blood pressure monitoring     Volume:  11     ISSN:  1359-5237     ISO Abbreviation:  Blood Press Monit     Publication Date:  2006 Dec 
Date Detail:
Created Date:  2006-11-19     Completed Date:  2007-02-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9606438     Medline TA:  Blood Press Monit     Country:  England    
Other Details:
Languages:  eng     Pagination:  349-54     Citation Subset:  IM    
Affiliation:
Clinic Research Unit, Preventive Cardiology, Department of Cardiology, R Silvestrini Hospital, Perugia, Italy. fangeli@cardionet.it
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Blood Pressure Monitoring, Ambulatory / instrumentation*
Blood Pressure Monitors*
Clinical Protocols*
Female
Great Britain
Humans
Hypertension / physiopathology*
Italy
Male
Middle Aged
Reproducibility of Results
Societies, Medical
Wrist / physiopathology

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


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