Measurement of Central Systolic Blood Pressure by Pulse Volume Plethysmography With a Noninvasive Blood Pressure Monitor
Why the study?
Does a pulse volume plethysmography method applied to a noninvasive blood pressure monitor accurately estimate central systolic blood pressure compared to invasive measurement in patients undergoing cardiac catheterization?
Population
50 patients (37 men, age range 30-84 years) referred for cardiac catheterization.
Comparison
Noninvasive estimation of central systolic blood… vs Invasive right brachial and central aortic…
Design
Cross-sectional
Authors
Discussion
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Member takes
Implication
Does not support immediate clinical adoption; leaves open whether central estimates improve risk stratification over brachial SBP.
Structured PICO
Does a pulse volume plethysmography method applied to a noninvasive blood pressure monitor accurately estimate central systolic blood pressure compared to invasive measurement in patients undergoing cardiac catheterization?
P
Population
50 patients (37 men, age range 30-84 years) referred for cardiac catheterization.
I
Intervention
Noninvasive estimation of central systolic blood pressure (SBP) by analysis of pulse volume plethysmography (PVP) waveform using a customized noninvasive blood pressure monitor (NBPM), utilizing original (CSBP-O) and newly generated (CSBP-N) regression equations.
C
Comparator
Invasive right brachial and central aortic pressures measured simultaneously using a dual-sensor pressure catheter.
O
Outcome
Reproducibility of the invasive central SBP by noninvasive estimates (CSBP-O and CSBP-N) examined using the concordance correlation coefficient.surrogate
A novel pulse volume plethysmography method applied to a standard noninvasive blood pressure monitor can accurately estimate central systolic blood pressure, outperforming standard noninvasive brachial SBP.
Cite This Study
Sung et al. (2012) studied this question.