Accurate Blood-Pressure Measurement at Home Á. Jobbágy – P. Csordás – A. Mersich Budapest...
Transcript of Accurate Blood-Pressure Measurement at Home Á. Jobbágy – P. Csordás – A. Mersich Budapest...
![Page 1: Accurate Blood-Pressure Measurement at Home Á. Jobbágy – P. Csordás – A. Mersich Budapest University of Technology and Economics Dept. Measurement and.](https://reader036.fdocuments.in/reader036/viewer/2022062520/5697bf711a28abf838c7e3b7/html5/thumbnails/1.jpg)
Accurate Blood-Pressure Accurate Blood-Pressure Measurement at HomeMeasurement at Home
Á. Jobbágy – P. Csordás – A. MersichBudapest University of Technology and Economics
Dept. Measurement and Information Systems
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MEDICON2004 2
How to characteriseblood pressure
statistics of daily variation
statistics of short-term variation
momentary value
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Extra information: Pulse wave velocity
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Extra information: Pulse wave velocity
vL
TPT
Eh
d =
E = E eaBP0
)]T()-hE
dL([
a=BP PTln2ln
1
0
2
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Measurement set-up
left arm:tonometer on wrist
right or left arm:upper arm cuff
PPG on index finger
ECG, spirometer
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reflects changes in systolic pressure
EP
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MEDICON2004 7
Effects of breathing
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MEDICON2004 8
Effects of breathing
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MEDICON2004 9
Correlation between and air flowEP
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MEDICON2004 10
Effect of occlusion by the cuff
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Effect of occlusion by the cuff
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MEDICON2004 12
Effect of occlusion by the cuff
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MEDICON2004 13
Effect of occlusion by the cuff
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MEDICON2004 14
Is the tested person at rest?
decision can be made based on processing:
HRV,
PPG,
EP.
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Heart rateyoung healthy subject 1
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Heart rateyoung healthy subject 2
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A device for home use
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A device for home use
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MEDICON2004 19
Extra information: rigidity of the brachial arteries
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Improperly wrapped up cuff