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January 10, 2018Physiological MeasurementOpen Access

The best estimation model based on the combination of PPG and PPT achieved a decrease (GAM & GSD) of 0.81 ± 0.95 mmHg in SBP and 0.75 ± 0.54 mmHg in DBP compared to PPT-based methods.

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Why the study?

Do new photoplethysmogram indicators combined with pulse transit time improve the accuracy of cuffless and continuous blood pressure estimation compared to previous methods?

Population

22 subjects performing mental arithmetic stress and Valsalva's manoeuvre tasks to induce BP fluctuations

Comparison

Blood pressure estimation models based on newly… vs Previously reported PPG-based methods and…

Design

Other

Authors

WLWan-Hua LinHWHui WangOSOluwarotimi Williams Samuel

Discussion

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Overview

Modest accuracy gains in cuffless BP models; leaves open clinical utility pending prospective validation.

Structured PICO

Do new photoplethysmogram indicators combined with pulse transit time improve the accuracy of cuffless and continuous blood pressure estimation compared to previous methods?

P
Population
22 subjects performing mental arithmetic stress and Valsalva's manoeuvre tasks to induce BP fluctuations
I
Intervention
Blood pressure estimation models based on newly extracted photoplethysmogram (PPG) indicators and pulse transit time (PTT) using linear regression
C
Comparator
Previously reported PPG-based methods and PPT-based methods
O
Outcome
Estimation errors of grand absolute mean (GAM) and standard deviation (GSD) for systolic and diastolic blood pressuresurrogate

Newly proposed PPG indicators combined with PTT can modestly improve the accuracy of continuous and cuffless blood pressure estimation.

Cite This Study

Lin et al. (2018) studied this question.

synapsesocial.com/papers/6a7e4c02410afd830ac76b0bhttps://doi.org/10.1088/1361-6579/aaa454
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