Compare the efficacy of remote magnetic navigation-guided ablation and cryoablation for patients with persistent atrial fibrillation.~Compare the safety of remote magnetic navigation-guided ablation and cryoablation for patients with persistent atrial fibrillation.~Compare the procedural parameters of remote magnetic navigation-guided ablation and cryoablation for patients with persistent atrial fibrillation.~Compare the effects of amiodarone on recurrence after these two different ablation procedures.
Compare the safety and efficacy of remote magnetic navigation-guided ablation and cryoablation for patients with persistent atrial fibrillation.