Title
Arterial stiffness as underlying mechanism of disagreement between an oscillometric blood pressure monitor and a sphygmomanometer
Author
TNO Biomedical Instrumentation
van Popele, N.M.
Bos, W.J.W.
de Beer, N.A.M.
van der Kuip, D.A.M.
Hofman, A.
Grobbee, D.E.
Witteman, J.C.M.
Publication year
2000
Abstract
Oscillometric blood pressure devices tend to overestimate systolic blood pressure and underestimate diastolic blood pressure compared with sphygmomanometers. Recent studies indicate that discrepancies in performance between these devices may differ between healthy and diabetic subjects. Arterial stiffness in diabetics could be the underlying factor explaining these differences. We studied differences between a Dinamap oscillometric blood pressure monitor and a random-zero sphygmomanometer in relation to arterial stiffness in 1808 healthy elderly subjects. The study was conducted within the Rotterdam Study, a population-based cohort study of subjects aged 55 years and older. Systolic and diastolic blood pressure differences between a Dinamap and a random-zero sphygmomanometer were related to arterial stiffness, as measured by carotid-femoral pulse wave velocity. Increased arterial stiffness was associated with higher systolic and diastolic blood pressure readings by the Dinamap compared with the random-zero sphygmomanometer, independent of age, gender, and average mean blood pressure level of both devices. The β-coefficient (95% CI) was 0.25 (0.00 to 0.50) mm Hg/(m/s) for the systolic blood pressure difference and 0.35 (0.20 to 0.50) mm Hg/(m/s) for the diastolic blood pressure difference. The results indicate that a Dinamap oscillometric blood pressure device, in comparison to a random-zero sphygmomanometer, overestimates systolic and diastolic blood pressure readings in subjects with stiff arteries.
Subject
Arterial stiffness
Blood pressure monitoring
Oscillometry
Sphygmomanometry
Adult
Artery disease
Carotid artery pulse
Controlled study
Diabetes mellitus
Diastolic blood pressure
Hypertension
Intermethod comparison
Major clinical study
Risk factor
Systolic blood pressure
Age Distribution
Aged
Aged, 80 and over
Arteries
Blood Pressure
Blood Pressure Determination
Blood Pressure Monitors
Cohort Studies
Elasticity
Female
Humans
Male
Middle Aged
Oscillometry
Reproducibility of Results
Sex Distribution
Sphygmomanometers
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TNO identifier
280405
ISSN
0194-911X
Source
Hypertension, 36 (36), 484-488
Document type
article