Arrhythmias & electrophysiology
Effectiveness of photoplethysmography-based rhythm monitoring after atrial fibrillation ablation using a smartphone application: DIGITOTAL study
Main finding · Atrial arrhythmia recurrence detectedResult — go to the resultOdds ratio 3.4 95% CI 1.7–7.1Authors' conclusion
Digital rhythm follow-up using a smartphone application with PPG was noninferior to conventional follow-up in detecting atrial arrhythmia recurrence between 3 and 12 months after ablation. Moreover, digital follow-up significantly increased the detection of atrial arrhythmia.
Study context
- Population
- Consecutive patients undergoing atrial fibrillation (AF) ablation
- Participants
- 96 patients
- Exposure
- PPG smartphone-based digital follow-up vs conventional ECG-based follow-up
- Outcome
- Detection of atrial arrhythmia recurrence
- Follow-up
- 1 year
Methodological detailspaired comparison within patients, non-inferiority
- Paired comparison within patients
- Non-inferiority
Main finding
Atrial arrhythmia recurrence detected
Odds ratio
3.4
95% CI 1.7–7.1
P = 0.001 for superiority
By group
Digital follow-up vs Conventional follow-up
OR 3.4 (95% CI 1.7–7.1); P for superiority = 0.001
As reported in the abstract
Observational data: associations, not effects.
Further findings
| Outcome | Digital follow-up |
|---|---|
| NPV of digital follow-up for atrial arrhythmia detected with conventional follow-up | |
| NPV | 98.3% (95% CI, 90.9%-99.9%) |
Compliance rate (number performed/prescribed)
- Compliance rate for electrocardiograms (ECGs)
- 92.6%
- Compliance rate for PPG recordings
- 78.2%
Original publication
Effectiveness of photoplethysmography-based rhythm monitoring after atrial fibrillation ablation using a smartphone application: DIGITOTAL study. Heart Rhythm. Published 22 November 2024. doi:10.
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