Smartphone light sensor may spot when an irregular heartbeat fixes itself
NCT ID NCT07752940
First seen Aug 07, 2026 · Last updated Aug 07, 2026
Summary
This trial tests whether a smartphone app that uses light to measure heart rhythm can reliably detect when atrial fibrillation (AF) spontaneously returns to a normal heartbeat. About 200 adults with AF scheduled for an electrical cardioversion will either receive standard care or use the app twice daily for a week before the procedure. The goal is to see if this simple home monitoring can catch a natural recovery and prevent an unnecessary hospital visit, while also tracking symptoms and long-term rhythm outcomes.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Smartphone-based PPG monitoring using the FibriCheck application
- What this could lead to
- If successful, this approach could let some people with atrial fibrillation avoid an unnecessary hospital procedure by detecting when their heart rhythm has already returned to normal.
- What could go wrong
- The monitoring is intermittent and app-guided, so it may miss brief episodes of normal rhythm. The trial is relatively small and early, and results may not apply to all patients with atrial fibrillation.
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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
-
University Hospitals Leuven
Leuven, Vlaams-Brabant, 3000, Belgium
-
Ziekenhuis Oost Limburg
Genk, Limburg, 3600, Belgium
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Could a smartphone alert replace daily blood thinners for AF?
- Blood fat clues could flag hidden heart rhythm risk
- Can a new heart ablation technique work without x-rays?
- Which blood thinner is safer for heart patients? a Head-to-Head test
- Can a Wrist-Worn sensor outsmart atrial fibrillation?
- Can adding a second ablation target stop atrial fibrillation from coming back?