Long-Term Continuous Monitoring of New-Onset Atrial Fibrillation After Coronary Artery Bypass Grafting
Authors' conclusion
Although the incidence of new-onset AF after CABG in this study was higher than previously reported, the AF burden in these patients was very low, especially after 30 days.
Study context
- Population
- Patients with 3-vessel CAD or left main disease and no history of arrhythmias undergoing coronary artery bypass grafting (CABG) with an insertable cardiac monitor, 2 German academic centres, 2019–20231,217 assessed
- Participants
- 198 patients
- Outcome
- Cumulative incidence of new-onset AF
- Follow-up
- Within a year of surgery
Methodological detailsmulticentre, Enrolled November 2019 through November 2023; 1-year follow-up
- Multicentre
- Enrolled November 2019 through November 2023; 1-year follow-up
Main finding
As reported in the abstract
first year after CABG
New-onset atrial fibrillation (AF), 95 patients; cumulative incidence
48%
95% CI 41%–55%
Observational data: associations, not effects.
Secondary outcomes
AF burden · first year
- Median AF burden, first year (IQR 0.02%-0.23%), or 370 minutes
- 0.07%
- Median AF burden, days 1–7 (IQR 0.95%-9.09%), 368 minutes
- 3.65%
- Median AF burden, days 8–30 (IQR 0%-1.21%), 13 minutes
- 0.04%
- Median AF burden, days 31–365 (IQR 0%-0.0003%), 0 minutes
- 0%
AF episode >24 hours after discharge
- Patients with an AF episode longer than 24 hours after discharge
- 3
Original publication
Long-Term Continuous Monitoring of New-Onset Atrial Fibrillation After Coronary Artery Bypass Grafting. JAMA. Published 25 November 2025. doi:10.
Summarised from the published abstract; every number is checked against it