Arrhythmias & electrophysiology

Prognostic Impact of Sinus Rhythm in Atrial Fibrillation Patients: Separating Rhythm Outcomes From Randomized Strategy Findings From the CABANA Trial

Circ Arrhythm ElectrophysiolPublished Secondary analysis of the CABANA randomised trial

Primary resultResult — go to the resultAdjusted hazard ratio 0.57 95% CI 0.38–0.85

Authors' conclusion

In patients in the CABANA trial with detailed long-term rhythm follow-up, increased time in SR was associated with a clinically consequential decrease in mortality and other adverse prognostic events.

Study context

Population
Atrial fibrillation (AF) patients in CABANA (ablation vs drug therapy) monitored with the CABANA ECG rhythm monitoring systemof 2204 randomised
Participants
1,240 patients
Comparison
Sinus rhythm (SR) vs non-SR
Primary endpoint
Primary CABANA end point:
  • Death
  • Disabling stroke
  • Serious bleeding
  • Cardiac arrest
Methodological detailsprespecified analysis, time-dependent Cox model, stratified by randomised treatment
  • Prespecified analysis
  • Time-dependent Cox model
  • Stratified by randomised treatment

Primary result

As reported in the abstract

Adjusted hazard ratio

0.57

95% CI 0.38–0.85

P = 0.006

SRvs Non-SR
adjusted HR 0.57 (95% CI 0.38–0.85); P = 0.006

Further findings

Primary end point by AF documented during follow-up

OutcomeAdjusted HR (95% CI)P value
All-cause mortality0.59 (0.35–1.01)P = 0.053
  • Primary end point by AF documented during follow-up: documented AF n=883; no AF n=357

Documented AF during postblanking follow-up

Any documented AF
883 (71.2%)
AF within first year (of 883)
671 (76.0%)
First AF after ≥1 year (of 883)
212 (24.0%)

Original publication

Prognostic Impact of Sinus Rhythm in Atrial Fibrillation Patients: Separating Rhythm Outcomes From Randomized Strategy Findings From the CABANA Trial. Circ Arrhythm Electrophysiol. Published 17 April 2024. doi:10.1161/circep.123.012697

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