What does this research mean for the field?

Smart device-based photoplethysmography screening identifies suspected atrial fibrillation with a positive predictive value of 91.6% in a large population cohort. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To investigate the effectiveness of smart device-based photoplethysmography screening coupled with a mobile clinical care pathway to detect and manage atrial fibrillation in a large population.

August 18, 2026Journal of the American College of CardiologyOpen Access

Mobile Photoplethysmographic Technology to Detect Atrial Fibrillation

Q: What is the clinical evidence from this study?

Study design: Cohort. Population: Suspected atrial fibrillation (n=187912). Intervention: Smart device based photoplethysmography (PPG) technology. Primary outcome: Positive predictive value (PPV) of PPG signals for confirming AF (95% CI 91.5-91.8).

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Key result

Smart device PPG screening detects suspected AF with ~92% PPV.

95% CI 91.5-91.8
n=187,912

Why the study?

Low detection and nonadherence limit current management for suspected AF, whereas mHealth devices could enable earlier detection and improved management.

Does smart device-based photoplethysmography (PPG) technology effectively screen for atrial fibrillation in a large population-based cohort?

Population

187,912 individuals aged over 18 years across China monitoring pulse rhythm with smart devices

Comparison

Smart device PPG-based AF screening combined with an mHealth AF management pathway

Design

Population-based cohort study

Follow-up

At least 14-days monitoring

Authors

YGYutao GuoHefei University of Technology HWHao WangBeijing University of Technology HZHui ZhangChinese PLA General Hospital

Discussion

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Key expert perspectives

Captured external expert commentary on this paper, strongest first. Original sources are linked where available.

YG Yutao GuoAssociate Professor, Chinese PLA General Hospital, Beijing

“Based on our present study, continuous home-monitoring with smart device based PPG technology could be a feasible, cost-effective approach for AF screening. There were 95% patients following entry into a program of integrated AF care, and approximately 80% of high risk patients were successfully anticoagulated. This would help efforts at screening and detection of AF, as well as early interventions to reduce stroke and other AF-related complications.”

News Coverage

GLGregory LipCardiovascular medicine professor, University of Liverpool

“Improved AF care requires early detection and the opportunity for streamlined management decision-making. Better detection can be followed by implementing the priorities of AF management, which is as 'easy as ABC': Avoid stroke; Better symptom optimization; Cardiovascular and risk factor management.”

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Implication

mHealth PPG screening may aid AF detection; leaves open whether it improves outcomes or adherence in practice.

Key Points

To investigate the effectiveness of smart device-based photoplethysmography screening coupled with a mobile clinical care pathway to detect and manage atrial fibrillation in a large population.
A total of 187,912 adults across China monitored their pulse rhythm for at least 14 days using commercial smartwatches and wristbands equipped with photoplethysmography algorithms.
Participants with suspected atrial fibrillation were referred to network hospitals and the mAFA Telecare center for diagnostic confirmation via clinical evaluation, electrocardiography, or 24-hour Holter monitoring.
Among 187,912 monitored individuals, 424 (0.23%) received suspected atrial fibrillation notifications, and 227 of 262 successfully followed up were confirmed to have the condition, representing a positive predictive value of 91.6% (95% CI, 91.5%–91.8%).
Detection of suspected and confirmed atrial fibrillation increased significantly with participant age (p for trend < 0.001).
Following confirmation, 95.1% (216/227) of individuals entered an integrated mobile AF management pathway, and approximately 80% of high-risk patients successfully initiated anticoagulation therapy.

Study Design

Type

Cohort (n=187,912)

Multicenter

Yes

Structured PICO

Does smart device-based photoplethysmography (PPG) technology effectively screen for atrial fibrillation in a large population-based cohort?

Population

187,912 adults aged >18 years across China (mean age 35, 13.3% female) who used smart devices with PPG technology to monitor their pulse rhythm for at least 14 days.

Exposure

Atrial fibrillation screening using smart device-based photoplethysmography (PPG) technology (wristband or wristwatch) for at least 14 days, combined with a mobile AF App (mAFA) management pathway.

Outcome

Detection of atrial fibrillation and positive predictive value (PPV) of PPG signals

Continuous home-monitoring with smart device-based PPG technology is a feasible approach for AF screening, demonstrating a high positive predictive value of 91.6%.

Cite This Study

Guo et al. (2019) conducted a cohort in Suspected atrial fibrillation (n=187,912). Smart device based photoplethysmography (PPG) technology was evaluated on Positive predictive value (PPV) of PPG signals for confirming AF (95% CI 91.5-91.8). Smart device-based photoplethysmography screening in 187,912 adults identified suspected atrial fibrillation with a positive predictive value of 91.6% (95% CI 91.5-91.8%).

synapsesocial.com/papers/6a8477eaf54da20a1578d64d https://doi.org/10.1016/j.jacc.2019.08.019

Topics

Persistent AF management Atrial fibrillation

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Mobile Photoplethysmographic Technology to Detect Atrial Fibrillation

Discussion

Member takes

Key expert perspectives

Implication

Key Points

Study Design

Structured PICO

Cite This Study

Topics

Mobile Photoplethysmographic Technology to Detect Atrial Fibrillation

Discussion

Member takes

Key expert perspectives

Implication

Key Points

Study Design

Structured PICO

Cite This Study

Also Consider

Topics

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