Atrial Fibrillation Clinical Trial
Official title:
A Nationwide Multicenter Trial Assessing the Effects of Catheter Ablation on Burden of Atrial Fibrillation Recorded by Implantable Cardiac Monitor
The study will assess the atrial fibrillation burden recorded By implantable loop recorder at 12 and 24 months compared to baseline. The patients with clinical indication fo catheter ablation of paroxysmal atrial fibrillation will be randomized to three techniques: manual radiofrequency ablation, radiofrequency ablation using remote magnet monitoring, and cryoablation.
A total of 300 patients will be randomized to three different catheter ablation techniques
(100 patients/group); radiofrequency ablation using remote magnet navigation, radiofrequency
ablation using manual method, and cryoablation. A loop recorder (REVEAL) is implanted one
month before the catheter ablation of paroxysmal atrial fibrillation and the effects of
atrial fibrillation burden will be compared between the three methods at 12 and 24 months
after ablation excluding the first three months´ blanking period.
The primary endpoints are:
1. the proportion of patients remaining free from atrial fibrillation, atrial flutter or
atrial tachycardia (> 2 minutes) recorded by the implantable cardiac monitor
(Medtronic) at 24 months follow-up and
2. total atrial fibrillation burden recorded by the loop recorder.
Other endpoints:
1. Atrial fibrillation burden in 7 days Holter recording at 12 and 24 months compared to
baseline,
2. the time to first documented symptomatic and asymptomatic recurrence of atrial
fibrillation
3. prescription of antiarrhythmic drugs after the 3 months blanking period following the
ablation
4. re-ablation after the index ablation procedure,
5. total procedural duration;
6. total time of fluoroscopy and radiation dose;
7. number and duration of cardiovascular hospitalization;
8. quality of life questionnaires at 12 months and 24 month compared with baseline,
9. cognitive function at 12 and 24 month compared with baseline,
10. cost-efficacy of the different ablation techniques.
;
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Treatment
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