April 1, 1988Clinical Physiology
Comparison of forearm plethysmography methods with brachial artery pulsed Doppler flowmetry in man
Why the study?
Does strain-gauge plethysmography correlate with pulsed Doppler flowmetry for measuring forearm blood flow in normal subjects and hypertensive patients?
Population
123 individuals, comprising 32 normal subjects and 91 patients with sustained essential hypertension
Comparison
Strain-gauge plethysmography vs Brachial artery pulsed Doppler flowmetry
Design
Cross-sectional
Authors
Discussion
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Member takes
Implication
Correlated forearm blood flow measures support method agreement in hypertension; leaves open whether Doppler's added data improve clinical decisions.
Structured PICO
Does strain-gauge plethysmography correlate with pulsed Doppler flowmetry for measuring forearm blood flow in normal subjects and hypertensive patients?
P
Population
123 individuals, comprising 32 normal subjects and 91 patients with sustained essential hypertension
I
Intervention
Strain-gauge plethysmography
C
Comparator
Brachial artery pulsed Doppler flowmetry
O
Outcome
Correlation of forearm blood flow measurements between the two methodssurrogate
Strain-gauge plethysmography correlates well with pulsed Doppler flowmetry for measuring forearm blood flow velocity, though Doppler flowmetry provides additional information on instantaneous variations and arterial diameter changes.
Cite This Study
Safar et al. (1988) studied this question.