Evidence map›Paper›PMID 42077384›Full record

ArticleEuropean heart journal. Digital health2026

Prediction of vasovagal syncope using artificial intelligence-enabled smartwatch photoplethysmography-derived heart rate variability.

Hak Seung Lee, Junho Song, Moonki Jung, Yong-Yeon Jo, Joon-Myoung Kwon, Jun Hwan Cho

Abstract read
In one paragraph

Article in European heart journal. Digital health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Hak Seung LeeMedical AI Co., Ltd., Seoul, Republic of Korea.ORCID https://orcid.org/0000-0002-2200-6601
Junho SongMedical AI Co., Ltd., Seoul, Republic of Korea.
Moonki JungDepartment of Cardiology, Heart and Brain Hospital, Chung-Ang University Gwangmyeong Hospital, Chung-Ang University College of Medicine, 110 Deokan-ro, Gwangmyeong-si, Gyeonggi-do 14353, Repulic of Korea.
Yong-Yeon JoMedical AI Co., Ltd., Seoul, Republic of Korea.
Joon-Myoung KwonMedical AI Co., Ltd., Seoul, Republic of Korea.
Jun Hwan ChoDepartment of Cardiology, Heart and Brain Hospital, Chung-Ang University Gwangmyeong Hospital, Chung-Ang University College of Medicine, 110 Deokan-ro, Gwangmyeong-si, Gyeonggi-do 14353, Repulic of Korea.ORCID https://orcid.org/0000-0003-2158-8272

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aims: Vasovagal syncope (VVS) can cause injury and impaired quality of life, and effective prevention requires timely warning before loss of consciousness. To evaluate whether smartwatch photoplethysmography (PPG)-derived heart rate variability (HRV) can predict VVS before symptom onset, and to identify an optimal observation window and lead time. Methods and results: We prospectively enrolled 132 patients with suspected neurally mediated syncope who underwent head-up tilt (HUT) testing while wearing a wrist-worn Samsung Galaxy Watch 6 for continuous multiwavelength PPG acquisition (25 Hz). The HRV features ( Conclusion: Artificial intelligence-enabled analysis of smartwatch PPG-derived HRV can prospectively predict VVS during HUT using a short 5-min observation window while maintaining clinically meaningful performance at a 5-min lead time, supporting the feasibility of wearable, real-time warning systems.

Indexed as

Artificial intelligenceHeart rate variabilityPhotoplethysmographyPrediction algorithmSmartwatchVasovagal syncope

Identifiers

PMID42077384
PMCPMC13131986

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.