Smartwatches vs. implants: a new way to catch Stroke-Causing irregular heartbeats?

NCT ID NCT06832579

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether smartwatches can detect atrial fibrillation (AF) in people who recently had a stroke. Participants already have an implanted heart monitor (the gold standard) and will also wear a smartwatch for 12 weeks. The goal is to see how well the smartwatch catches AF episodes compared to the implant, which could lead to easier and cheaper monitoring for stroke survivors.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
Smartwatch (Apple Watch or PulseOn) for heart rhythm monitoring
What this could lead to
If successful, smartwatches could offer a non-invasive, low-cost way to detect hidden atrial fibrillation after a stroke, potentially preventing future strokes.
What could go wrong
This is a small pilot study (84 people) testing sensitivity, not treatment. Smartwatches may miss short AF episodes or have lower accuracy than implanted monitors.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Evangelisches Klinikum Bethel, Clinic for Neurology

    Bielefeld, 33611, Germany

  • Johannes Wesling Klinikum Minden Universitätsklinik für Neurologie und Neurogeriatrie Hans-Nolte-Str. 1

    Minden, 32429, Germany

  • Klinik für Neurologie Klinikum Ibbenbüren Große Str. 41

    Ibbenbueren, 49477, Germany

  • Klinik für Neurologie Universitätsklinik der Paracelsus Medizinischen Privatuniversität Breslauer Str. 201

    Nuremberg, 90471, Germany

  • Kliniken Südostbayern AG, Klinikum Traunstein

    Traunstein, 83278, Germany

  • Krankenhaus Martha-Maria Halle-Dölau

    Halle, 06120, Germany

  • Medizinische Fakultät Carl Gustav Carus Klinik und Poliklinik für Neurologie

    Dresden, Germany

  • RHÖN-KLINIKUM Campus Bad Neustadt Von-Guttenberg-Straße 11 Akutneurologie II - Stroke Unit - klinische Forschung

    Bad Neustadt an der Saale, 97616, Germany

  • University Hospital Leipzig, Clinic for Neurology

    Leipzig, 04103, Germany

  • University of Essen, Clinic of Neurology

    Essen, 45147, Germany

  • University of Göttingen, Clinic for Neurology

    Göttingen, 37075, Germany

  • University of Mainz, Clinic for Neurology

    Mainz, 55131, Germany

  • Universitätklinikum Erlangen Neurologische Klinik, Schwabachanlage 6

    Erlangen, 91054, Germany

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