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A Photoplethysmography-Based Machine Learning Algorithm for Early Atrial Fibrillation Detection: A Prospective Validation Study (HeartCore AF)
Prospective Validation of a Machine-Learning Algorithm Using Photoplethysmography Signals for Early Detection of Atrial Fibrillation During Remote Telemonitoring
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
Atrial fibrillation (AF) and heart failure (HF) frequently coexist and share a bidirectional causal relationship; their concurrence is associated with worse clinical outcomes. Early detection of AF may enable timely intervention and improve outcomes. This study is prospectively validating a machine-learning algorithm for AF detection from PPG signals, intended for integration into the Seerlinq remote monitoring platform. This algorithm builds on the same core PPG signal-processing technology as Seerlinq's HeartCore device (a CE-certified, Class IIb device under the EU MDR that monitors left ventricular filling pressures in heart failure patients). It is a stand-alone algorithm designed specifically to detect clinically relevant (≥ 30s) atrial fibrillation.
Validation of the algorithm will proceed in three stages: (1) internal cross-validation; (2) external validation against an independent cohort with paired PPG-ECG recordings, to confirm generalizability; and (3) validation in a cohort of patients with paroxysmal atrial fibrillation and frequent sinus-AF transitions, to assess performance during clinically challenging rhythm changes.
The study is enrolling toward an estimated 1,000 unique PPG recordings. A 12-lead ECG is used to confirm cardiac rhythm classification (gold standard) as the reference for evaluating algorithm performance.
Studietype
Inschrijving (Geschat)
Contacten en locaties
Studiecontact
- Naam: Marta Kollárová, MSc., PhD.
- Telefoonnummer: +421 950 896 026
- E-mail: marta.kollarova@premedix.org
Studie Locaties
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Bratislava, Slowakije
- Werving
- PreMedix
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Contact:
- Allan Bohm, M.D., MSc. PhD.
- Telefoonnummer: +421 907 411 499
- E-mail: allan.bohm@premedix.org
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Hoofdonderzoeker:
- Allan Bohm, M.D., MSc., PhD.
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
- Adults ≥18 years with a diagnosis of heart failure (HFrEF, HFmrEF, or HFpEF)
- 12-lead ECG performed to confirm cardiac rhythm classification (AF vs. non-AF)
Exclusion Criteria:
- Missing a valid PPG recording
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Cohorten en interventies
Groep / Cohort |
Interventie / Behandeling |
|---|---|
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Documented AF
HF patients with a history of permanent/paroxysmal AF and AF documented on 12-lead ECG at enrollment
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The PPG-based atrial fibrillation detection algorithm is a non-invasive signal processing approach that analyzes photoplethysmographic waveforms obtained during remote monitoring.
The algorithm evaluates pulse-to-pulse variability, waveform characteristics, and signal quality parameters to identify irregular rhythm patterns associated with atrial fibrillation and provide early detection of potential arrhythmic events.
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Non-AF
HF patients in sinus rhythm on the index 12-lead ECG with no prior documented AF episodes
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The PPG-based atrial fibrillation detection algorithm is a non-invasive signal processing approach that analyzes photoplethysmographic waveforms obtained during remote monitoring.
The algorithm evaluates pulse-to-pulse variability, waveform characteristics, and signal quality parameters to identify irregular rhythm patterns associated with atrial fibrillation and provide early detection of potential arrhythmic events.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
|---|---|
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Diagnostic accuracy (area under the ROC curve) of the PPG-based machine-learning algorithm for detecting clinically relevant AF (≥ 30s), compared with gold-standard 12-lead ECG
Tijdsspanne: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Sensitivity and specificity of the algorithm at the Youden-optimal threshold
Tijdsspanne: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
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Positive predictive value and negative predictive value
Tijdsspanne: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
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Average precision
Tijdsspanne: Through study completion (estimated November 2026)
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area under the precision-recall curve
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Through study completion (estimated November 2026)
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Model calibration
Tijdsspanne: Through study completion (estimated November 2026)
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e.g., calibration curve / Brier score
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Through study completion (estimated November 2026)
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Matthews correlation coefficient
Tijdsspanne: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
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Overall classification accuracy
Tijdsspanne: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
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Specificity and false-positive rate in the subgroup with frequent atrial/ventricular extrasystoles
Tijdsspanne: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
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Accuracy of AF detection during sinus-AF transitions at the individual patient level
Tijdsspanne: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
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Medewerkers en onderzoekers
Sponsor
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- HeartCoreAF01
Plan Individuele Deelnemersgegevens (IPD)
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Beschrijving IPD-plan
Informatie over medicijnen en apparaten, studiedocumenten
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