Related Experiment Video
Updated: Jul 1, 2025
Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
Atrial fibrillation post CABG and the risk of arrhythmia recurrence: the AFRODITE study
Maria Nikolaou1, Gregory Pattakos2, Christos Hitas1
1Cardiology Department, Amalia Fleming General Hospital, Melissia, Attiki, Greece.
Insights
Postoperative atrial fibrillation (POAF) after coronary artery bypass surgery (CABG) did not impact long-term AF recurrence. Higher CHA2DS2-VASc scores predict POAF development in CABG patients.
Area of Science:
- Cardiology
- Cardiac Surgery
- Electrophysiology
Background:
- Postoperative atrial fibrillation (POAF) is a common complication after coronary artery bypass surgery (CABG), affecting 20-40% of patients.
- The clinical significance and long-term implications of POAF require further investigation.
Purpose of the Study:
- To evaluate the one-year recurrence of atrial fibrillation (AF) in patients who underwent isolated CABG.
- To compare outcomes between patients who developed POAF and those who did not.
Main Methods:
- The AFRODITE study prospectively followed 228 patients over 50 years old undergoing isolated CABG.
- Patients were categorized into POAF and non-POAF groups and monitored for 12 months for AF recurrence, hospitalizations, and mortality.
- Logistic regression identified predictors of POAF, including the CHA2DS2-VASc score.
Main Results:
- 28.5% of patients experienced POAF during their initial hospitalization.
- The CHA2DS2-VASc score was the strongest predictor of POAF development (OR=1.61, p<0.001).
- While POAF patients had worse in-hospital outcomes, long-term AF recurrence rates were similar (3.6% vs. 4.8%).
Conclusions:
- One-year follow-up revealed no significant difference in AF recurrence between POAF and non-POAF groups.
- Elevated CHA2DS2-VASc scores are associated with an increased likelihood of developing POAF post-CABG.
- These findings suggest that POAF may not significantly alter long-term AF recurrence risk despite short-term impacts.
Background:
New-onset postoperative atrial fibrillation (POAF) after coronary artery bypass surgery (CABG) occurs with an incidence of 20-40%. The clinical relevance of POAF remains a concern, and the need for further studies regarding the clinical management of POAF is necessary.
Aim:
The AFRODITE study, a prospective multicenter cohort study, had as its primary endpoint the evaluation of AF recurrence in patients post CABG over a one-year period.
Methods:
Two hundred twenty-eight patients aged >50 years who underwent isolated CABG were included in the study. Patients were stratified into two groups, POAF and non-POAF, and followed for 12 months for AF recurrence, hospitalizations, and death.
Results:
Two hundred twenty-eight patients (mean age 67 years, 88.6% male) were included in the study. 28.5% of patients experienced at least one episode of POAF during index hospitalization (POAF group) and were compared with the non-POAF group (n = 163). Multivariate stepwise logistic regression analysis showed that the strongest prognostic parameter for POAF was the CHA2DS2-VASc score (odds ratio = 1.61, p < 0.001). POAF patients had a worse in-hospital outcome, but the incidence of long-term AF recurrence was not statistically different (3.6% vs. 4.8%, p = 0.9).
Conclusion:
Interestingly, a one-year prospective follow-up of patients in the study did not reveal significant differences between POAF and non-POAF patients. A notable finding was that patients with a higher CHA2DS2-VASc score were more likely to develop POAF.
More Related Videos
Related Concept Videos
01:28Disturbances in Heart Rhythm
Arrhythmias are categorized by their speed, rhythm, and origin. A slow...
01:28Mechanism of Cardiac Arrhythmias