The original CAPLA study demonstrated that two strategies of atrial fibrillation (AF) ablation (pulmonary vein isolation vs BOX ablation) were equally effective in reducing the chance of having recurrent AF and other arrhythmia at 12 months following ablation. We are interested in whether any difference between the two strategies will emerge as further time passes since the ablation. As such, this study will look at assessing participants 2 years and at 3 years post-ablation.
All existing patients in the CAPLA study will be invited to participate in further follow-up at the 2-year and 3-year timepoints.
Participation in long term follow up will involve the following to be completed at the 2-year and 3-year timepoints:
- Completion of a questionnaire (online or over the phone per the patient’s preference).
- An assessment of AF burden by one of the following three options:
- Loop recorder or implanted device interrogation for patients who have an existing relevant device. Any device check at ± 3 months of the 2-year or 3-year timepoint will be acceptable.
- Ambulatory ECG monitoring (Holter or Event monitor).
- Serial AliveCor ECG transmission for 28 days.