What is the clinical evidence from this study?

Study design: Cross-Sectional. Population: Healthy normotensive adults (n=150). Intervention: WellFie application (remote photoplethysmography) vs. Certified medical devices (Masimo pulse oximeter and Omron BP monitor). Primary outcome: Predictive accuracy and relative mean absolute percentage error (RMAPE) for vital signs (HR, RR, systolic BP, diastolic BP) (Accuracy: Systolic BP 93.94%, Diastolic BP 92.95%, HR 97.34%, RR 84.44%).

January 18, 2023Open Access

The WellFie smartphone app predicted systolic BP, diastolic BP, and heart rate with 93.9%, 92.9%, and 97.3% accuracy respectively compared to certified medical devices in normotensive adults.

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Why the study?

Remote health monitoring gained interest during the COVID-19 pandemic, prompting evaluation of whether vital parameters can be determined contactless via smartphone-based remote photoplethysmography compared with certified medical devices.

Does smartphone-based remote photoplethysmography (WellFie application) accurately measure vital signs compared to certified medical devices in normotensive adults?

Population

150 normotensive adults

Comparison

Smartphone-based rPPG WellFie application vs certified medical devices

Design

Comparative cross-sectional validation study

Key result

The WellFie smartphone app predicted systolic BP, diastolic BP, and heart rate with 93.9%, 92.9%, and 97.3% accuracy respectively compared to certified medical devices in normotensive adults.

Authors

SRSujata Rajan MSMadhava Sai Sivapuram SKShiv Shankar Kumar

Discussion

Member takes

Overview

Hypothesis-generating for smartphone BP/HR monitoring; prospective validation needed before any clinical use.

Study Design

Type

Cross-Sectional (n=150)

Multicenter

Structured PICO

Does smartphone-based remote photoplethysmography (WellFie application) accurately measure vital signs compared to certified medical devices in normotensive adults?

Population

150 healthy normotensive adults aged 18 to 70 years evaluated in a cross-sectional validation study comparing a smartphone-based vital monitoring app to certified medical devices.

Exposure

Smartphone-based remote photoplethysmography (rPPG) technology enabled WellFie application capturing facial video for 60 seconds.

Comparator

Certified medical devices (blood pressure cuff on left arm and pulse oximeter on right index finger).

Outcome

Predictive accuracy of systolic blood pressure, diastolic blood pressure, heart rate, and respiratory rate compared to reference standards.surrogate

Main Result

Effect estimate: Accuracy: Systolic BP 93.94%, Diastolic BP 92.95%, HR 97.34%, RR 84.44%

Smartphone-based remote photoplethysmography can accurately determine blood pressure, heart rate, and respiratory rate in normotensive adults, offering a convenient contactless monitoring solution.

Limitations

Included only normotensive participants, not hypertensive or hypotensive.
Did not include participants with comorbid conditions or taking medications.
Not validated against gold standard techniques like invasive intra-arterial or mercury sphygmomanometer.
Did not control for different environmental conditions like outdoors, moving vehicles, or low light.
Included only normotensive participants, excluding hypertensive or hypotensive individuals and those with comorbid conditions or on medications.
Not validated against gold standard techniques (e.g., invasive intra-arterial or mercury sphygmomanometer).
Did not control for different environmental conditions such as outdoors, moving vehicles, or low light.

Cite This Study

Rajan et al. (2023) conducted a cross-sectional in Healthy normotensive adults (n=150). WellFie application (remote photoplethysmography) vs. Certified medical devices (Masimo pulse oximeter and Omron BP monitor) was evaluated on Predictive accuracy and relative mean absolute percentage error (RMAPE) for vital signs (HR, RR, systolic BP, diastolic BP) (Accuracy: Systolic BP 93.94%, Diastolic BP 92.95%, HR 97.34%, RR 84.44%). The WellFie smartphone app predicted systolic BP, diastolic BP, and heart rate with 93.9%, 92.9%, and 97.3% accuracy respectively compared to certified medical devices in normotensive adults.

synapsesocial.com/papers/6a86c5f7bb0787ff27ca06bb https://doi.org/10.1101/2023.01.14.23284548

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January 18, 2023Open Access

The WellFie smartphone app predicted systolic BP, diastolic BP, and heart rate with 93.9%, 92.9%, and 97.3% accuracy respectively compared to certified medical devices in normotensive adults.

View Full Paper

Ask AI

Bookmark

Why the study?

Does smartphone-based remote photoplethysmography (WellFie application) accurately measure vital signs compared to certified medical devices in normotensive adults?

Population

150 normotensive adults

Comparison

Smartphone-based rPPG WellFie application vs certified medical devices

Design

Comparative cross-sectional validation study

Key result

The WellFie smartphone app predicted systolic BP, diastolic BP, and heart rate with 93.9%, 92.9%, and 97.3% accuracy respectively compared to certified medical devices in normotensive adults.

Authors

SRSujata Rajan MSMadhava Sai Sivapuram SKShiv Shankar Kumar

Discussion

Member takes

Overview

Hypothesis-generating for smartphone BP/HR monitoring; prospective validation needed before any clinical use.

Study Design

Type

Cross-Sectional (n=150)

Multicenter

Structured PICO

Does smartphone-based remote photoplethysmography (WellFie application) accurately measure vital signs compared to certified medical devices in normotensive adults?

Population

150 healthy normotensive adults aged 18 to 70 years evaluated in a cross-sectional validation study comparing a smartphone-based vital monitoring app to certified medical devices.

Exposure

Smartphone-based remote photoplethysmography (rPPG) technology enabled WellFie application capturing facial video for 60 seconds.

Comparator

Certified medical devices (blood pressure cuff on left arm and pulse oximeter on right index finger).

Outcome

Predictive accuracy of systolic blood pressure, diastolic blood pressure, heart rate, and respiratory rate compared to reference standards.surrogate

Main Result

Effect estimate: Accuracy: Systolic BP 93.94%, Diastolic BP 92.95%, HR 97.34%, RR 84.44%

Smartphone-based remote photoplethysmography can accurately determine blood pressure, heart rate, and respiratory rate in normotensive adults, offering a convenient contactless monitoring solution.

Limitations

Included only normotensive participants, not hypertensive or hypotensive.
Did not include participants with comorbid conditions or taking medications.
Not validated against gold standard techniques like invasive intra-arterial or mercury sphygmomanometer.
Did not control for different environmental conditions like outdoors, moving vehicles, or low light.
Included only normotensive participants, excluding hypertensive or hypotensive individuals and those with comorbid conditions or on medications.
Not validated against gold standard techniques (e.g., invasive intra-arterial or mercury sphygmomanometer).
Did not control for different environmental conditions such as outdoors, moving vehicles, or low light.

Cite This Study

synapsesocial.com/papers/6a86c5f7bb0787ff27ca06bb https://doi.org/10.1101/2023.01.14.23284548

Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

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