Noninvasive assessment of local pulse pressure : Importance of brachial-to-radial pressure amplification

The advocated SphygmoCor procedure uses a radial-to-aorta transfer function with calibration on brachial instead of radial artery pressure to assess the central pulse pressure. We compared these values with carotid artery pulse pressures obtained from a validated calibration method, assuming mean mi...

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Bibliographic Details
Published in:Hypertension (Dallas, Tex. 1979) Tex. 1979), 2005-07, Vol.46 (1), p.244-248
Main Authors: VERBEKE, Francis, SEGERS, Patrick, HEIREMAN, Steven, VANHOLDER, Raymond, VERDONCK, Pascal, VAN BORTEL, Luc M
Format: Article
Language:English
Subjects:
Adult
Aged
Aorta - physiology
Arterial hypertension. Arterial hypotension
Biological and medical sciences
Blood and lymphatic vessels
Blood Pressure
Blood Pressure Determination - methods
Blood Pressure Determination - standards
Brachial Artery - physiology
Calibration
Cardiology. Vascular system
Cardiovascular system
Carotid Arteries - physiology
Clinical manifestations. Epidemiology. Investigative techniques. Etiology
Cross-Over Studies
Female
Humans
Investigative techniques of hemodynamics
Investigative techniques, diagnostic techniques (general aspects)
Male
Medical sciences
Middle Aged
Radial Artery - physiology
Reference Values
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Summary:The advocated SphygmoCor procedure uses a radial-to-aorta transfer function with calibration on brachial instead of radial artery pressure to assess the central pulse pressure. We compared these values with carotid artery pulse pressures obtained from a validated calibration method, assuming mean minus diastolic blood pressure constant throughout the large artery tree. From 44 healthy subjects (21 males; 22 to 68 years) pressure waves were obtained at the radial, brachial, and carotid artery with applanation tonometry. Using the calibration method, radial and carotid artery pressures were assessed from brachial artery waves and pressures. The effect of brachial-to-radial pulse pressure amplification, brachial pulse pressure, mean pressure, age, gender, height, body mass index, and smoking on differences between the 2 methods was assessed. Brachial artery pressure was 118+/-12/72+/-10 mm Hg. SphygmoCor central pulse pressure was 9.7+/-4.6 mm Hg lower (P
ISSN:0194-911X
1524-4563
DOI:10.1161/01.HYP.0000166723.07809.7e