Arrhythmias & electrophysiology
Determinants and impact of postoperative atrial fibrillation burden during 2.5 years of continuous rhythm monitoring after cardiac surgery: Results from the RACE V prospective cohort study
Main finding · Early-POAF burden and late-POAF (re)occurrenceResult — go to the resultAdjusted hazard ratio 1.93 95% CI 1.42–2.62Authors' conclusion
POAF burden was significantly associated with the longest individual POAF episode duration. Additionally, greater early-POAF burden was associated with increased late-POAF incidence
Study context
- Population
- Patients undergoing cardiac surgery, with and without preoperative history of atrial fibrillation (AF)
- Participants
- 98 consecutive patients
- Outcome
- Association between early-POAF burden (AF within first 90 postoperative days) and late-POAF recurrences (AF after 90 days)
- Follow-up
- 2.5 years
Methodological detailscontinuous rhythm monitoring with implantable loop recorder, consecutive patients
- Continuous rhythm monitoring with implantable loop recorder
- Consecutive patients
Main finding
Early-POAF burden and late-POAF (re)occurrence
Adjusted hazard ratio
1.93
95% CI 1.42–2.62
P < 0.001
Early-POAF burden
adjusted HR 1.93 (95% CI 1.42–2.62); P < 0.001
As reported in the abstract
Observational data: associations, not effects.
Further findings
Postoperative atrial fibrillation (POAF) burden, early vs late postoperative phase
- POAF burden significantly higher in early than late postoperative phase
- P < 0.001
Longest individual POAF episode and POAF burden
- Longest individual POAF episode strongly associated with increased POAF burden (standardized Beta)
- 0.91
- Adjusted for age, sex, AF history
- P <.001
Original publication
Determinants and impact of postoperative atrial fibrillation burden during 2.5 years of continuous rhythm monitoring after cardiac surgery: Results from the RACE V prospective cohort study. Heart Rhythm. Published 8 August 2024. doi:10.
Summarised from the published abstract; every number is checked against it