Special Functions; Central Blood Pressure; Central Pulse Pressure - Microlife WatchBP Office Central Instruction Manual

Special Functions

Central blood pressure

Central blood pressure is the pressure in the
ascending aorta, the largest artery that originates
from the left ventricular of the heart and from
where oxygen is distributed to all parts of the body
through the systemic circulation.
How is central blood pressure measured?
The WatchBP Office Central uses brachial pulse
volume plethysmography (PVP) waveforms
determine central blood pressure. The WatchBP
Office Central is designed to perform PVP at a cuff
pressure of 60 mmHg. Based on the analysis of
PVP waveforms the central systolic blood pressure
value and the central pulse pressure value are then
determined .
1
Accuracy of the WatchBP Office Central
The accuracy of central blood pressure measurement
performed with an automated oscillometric device
can only reliably be determined against intra-arterial
blood pressure measurement. The WatchBP Office
Central has been validated against simultaneous
recorded intra-arterial blood pressure measurement in
85 subjects and showed high accuracy
CPP (Central Pulse Pressure)
to
1
Central Pulse Pressure by this monitor is estimated
directly through pulse volume plethysmography (PVP)
waveform analysis.
1. Sung, S.H., et al., Measurement of central systolic blood pressure by
pulse volume plethysmography with a noninvasive blood pressure
monitor. Am J Hypertens, 2012. 25: 542-8.
2. Cheng, H.M., et al., Measurement accuracy of a stand-alone
oscillometric central blood pressure monitor: a validation report for
Microlife WatchBP Office Central. Am J Hypertens, 2013. 26: 42-50.
WatchBP Office Central
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