Arrhythmias & electrophysiology
Feasibility of repeated on-demand smartphone app–based approximation of time spent with atrial fibrillation and symptoms in patients after catheter ablation: Data from the ISOLATION study
Authors' conclusion
Repeated on-demand smartphone-based monitoring is feasible after AF ablation. Patient adherence declined slightly over 12 months. At 3 months, high AF and symptom load reliably predicted the following year while low AF and symptom load necessitate repeated monitoring.
Study context
- Population
- Patients after atrial fibrillation (AF) ablation monitoring heart rhythm and symptoms with an on-demand photoplethysmography-supported smartphone application 3 times daily for 7 days at 3-, 6-, and 12-month follow-upsmedian age 65 years [interquartile range 58–71 years], 65% (n = 125/191) male
- Participants
- 191 patients
- Outcome
- Patient adherence
- Follow-up
- Over 12 months
Main finding
As reported in the abstract
- Patient adherence declined slightly
- −7%
- P
- P=.04
Further findings
AF recurrence and symptom recurrence
- AF recurrence
- Forty-five patients (24%)
- Symptom recurrence
- 136 (71%)
Persistence of AF load and density class from 3 months
- Among patients with high AF load at 3 months, remained in high class
- 73% (n = 11/15)
- Among patients with high AF density at 3 months, remained in high class
- 88% (n = 7/8)
- Among patients with low AF load, remained in low class
- 0% (n = 0/1
- Among patients with low AF density, remained in low class
- n = 0/1
Persistence of symptom load and density class
- Among patients with high symptom load, remained in high class
- 84% (n = 36/43)
- Among patients with high symptom density, remained in high class
- 75% (n = 15/20)
- Among patients with low symptom load, remained in low class
- 0% (n = 0/12
- Among patients with low symptom density, remained in low class
- n = 0/2
Symptom-rhythm correlation
- Symptom-rhythm correlation was high (median)
- 97% [interquartile range 77%-100%]
Original publication
Feasibility of repeated on-demand smartphone app–based approximation of time spent with atrial fibrillation and symptoms in patients after catheter ablation: Data from the ISOLATION study. Heart Rhythm. Published 6 March 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →