Using a connected watch to monitor heart rhythm after cardiac surgery
Official title: Single-center Pilot Study to Evaluate the Interest of a Hybrid Connected Watch for Heart Rate Monitoring in Postoperative Cardiac Surgery
Run by Nantes University Hospital · NCT05664308 · Data updated 2026-11-12
This study is testing if a connected watch can help monitor heart rhythm in patients who have had heart surgery and experienced irregular heartbeats afterward.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 106 (estimated) |
| Sponsor | Nantes University Hospital Academic / other |
| Locations | 1 site (Nantes, Loire Atlantique) |
| Status | Recruiting |
| Started | March 19, 2024 |
| Main results expected | March 19, 2028 |
| Study ends | March 19, 2029 |
| Registry record updated | September 29, 2026 |
| Trial ID | NCT05664308 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults undergoing major cardiac surgery who develop new-onset postoperative atrial fibrillation and can commit to 12 months of monitoring.
✕Probably not a fit
Patients with pre-existing atrial fibrillation or those unable to independently perform ECG measurements will not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational pilot study aims to utilize a hybrid connected watch for monitoring cardiac rhythm in patients who have experienced postoperative atrial fibrillation (POAF) following major cardiac surgery. The study will track the absence of recurrence or maintenance of sinus rhythm over a 12-month period, providing valuable data to assist cardiologists in managing these patients. Participants will undergo clinical follow-up and ongoing ECG monitoring to assess their heart rhythm status. The study is conducted at a single center, Nantes University Hospital.
Why it matters
Potential benefit: If successful, this approach could enhance the management of postoperative atrial fibrillation, leading to better patient outcomes and reduced complications.
How similar studies have gone: While the use of connected devices for monitoring cardiac conditions is gaining traction, this specific approach in the postoperative setting is relatively novel and has not been extensively tested.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Major with an indication for conventional cardiac surgery with de novo postoperative AF onset. * Agreeing to participate in the study and having signed an informed consent. * Agreeing to undergo 12 months of postoperative monitoring. Exclusion Criteria: * Patient with pre-operative AF * Patient who does not have a smartphone compatible with the connected watch. * Patient unable to perform an ECG measurement independently. * Patient with a physical constraint to the measurement (arteriovenous fistula...) * Minors * Pregnant or breast-feeding women * Adults under guardianship, under curatorship * Patients whose life expectancy is less than 1 year * Patients participating in another therapeutic trial likely to impact the evaluation criteria of the MONHYCARD study * Contraindication to long-term anticoagulants * Patients implanted with a mechanical valve prosthesis pre-operatively or after surgery
Where it's running
-
CHU Nantes
Nantes, Loire Atlantique, France Recruiting
Study contacts
- Study coordinator: Charles-Henri DAVID
- Email: charleshenri.david@chu-nantes.fr
- Phone: 02.44.76.85.69
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.