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Reliability of palpation of the radial artery compared with auscultation of the brachial artery in measuring SBP.
MedLine Citation:
PMID:  20706131     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
BACKGROUND: Systolic blood pressure contributes more to cardiovascular disease than DBP, especially in elderly persons. Palpation of the radial artery to assess SBP - Riva-Rocci's technique - may be an attractive alternative for auscultatory SBP in these patients. Therefore, we investigated the difference between SBP determined by palpation of the radial artery (pSBP) and SBP assessed by auscultation of the brachial artery (aSBP).
METHODS: Patients were included from the waiting room of a hypertension outpatient clinic. In each patient eight simultaneous pSBP and aSBP measurements were assessed by two observers in the same arm. After every two readings the observers switched between pSBP and aSBP.
RESULTS: Forty patients were included, 25 men (62.5%), mean age 55.3 years (range 24-78). From a total of 320 measurements, mean difference between pSBP and aSBP was -5.2 mmHg (range -12-26 mmHg) (P < 0.01). This difference correlated significantly with BMI (r = 0.51, P < 0.01), but not with age (r = 0.15, P = 0.35), pulse rate (r = 0.29, P = 0.09) or mean SBP (r = 0.03, P = 0.85). After averaging the first three comparisons, reproducibility did not improve when increasing the number of comparisons. When correcting for the underestimation of 6 mmHg over the first three comparisons, Riva-Rocci's technique estimates SBP with an acceptable accuracy.
CONCLUSION: In clinical practice, Riva-Rocci's palpatory technique offers an acceptable alternative for auscultatory SBP measurement. It is recommended to take three measurements and then correct for the average underestimation of 6 mmHg.
Authors:
Niels V van der Hoeven; Bert-Jan H van den Born; Gert A van Montfrans
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of hypertension     Volume:  29     ISSN:  1473-5598     ISO Abbreviation:  J. Hypertens.     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2010-12-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8306882     Medline TA:  J Hypertens     Country:  England    
Other Details:
Languages:  eng     Pagination:  51-5     Citation Subset:  IM    
Affiliation:
Department of Internal Medicine, Academic Medical Center, Amsterdam, The Netherlands. Niels.vanderHoeven@student.uva.nl
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Comment In:
J Hypertens. 2011 Jan;29(1):27-8   [PMID:  21160359 ]

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