Arrhythmias & electrophysiology
Smartphone Atrial Fibrillation (AF) Burden During the Blanking Period Predicts Catheter Ablation Outcomes: Insights From DECAAF II
Authors' conclusion
A high AF burden derived from a smartphone ECG during the blanking period is a strong predictor of atrial arrhythmia recurrences after ablation.
Study context
- Population
- Patients with persistent AF undergoing ablation, recording daily single-lead smartphone electrocardiogram (ECG) strips
- Participants
- 630 patients
- Comparison
- Blanking-period smartphone ECG AF burden <18% vs >18%
- AF burden <18%n = 436reference
- AF burden >18%n = 194
- Primary endpoint
- Recurrence of atrial arrhythmia
- Follow-up
- 18-month follow-up
Primary result
As reported in the abstract
18 months
Hazard ratio (95% CI)P value
AF burden >18%vs AF burden <18%
4.57(3.63–5.75)
P < 0.001AF burden during blanking periodindependent predictor of arrhythmia recurrence
1.41(1.36–1.47)
P < 0.001- Blanking-period AF burden, recurrence vs sinus rhythm
- 31.3% vs 7.5%; P < 0.001
- AF burden cut-off 18% (grid search), C-index
- 0.748
Further findings
Blanking-period AF burden, recurrence after 90 days vs sinus rhythm
P < 0.001
Original publication
Smartphone AF Burden During the Blanking Period Predicts Catheter Ablation Outcomes: Insights From DECAAF II. JACC Clin Electrophysiol. Published 20 September 2023. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →