Atrial Fibrillation Clinical Trial
Official title:
Effect of Prolonged Use of Dronedarone on Recurrence in Patients With Non-paroxysmal Atrial Fibrillation After Radiofrequency Ablation
Recurrence rate remains high after radiofrequency ablation in patients with non-paroxysmal atrial fibrillation(AF). Prolonged use of anti-arrhythmic drugs (AAD) beyond the post-ablation blanking has been adopted as a solution but without sufficient clinical evidence. Dronedarone is an AAD valid to maintain sinus rhythm and has fewer side effect than other AAD for long-term use.We sought to investigate the effect of prolonged use of dronedarone on recurrence of non-paroxysmal AF patients beyond the post-blanking period within the first year after ablation.
In this multicenter, randomized, placebo-controlled trial, patients with non-paroxysmal AF will receive dronedarone for three months after radiofrequency ablation. Eligible Patients will then be randomly divided into dronedarone and placebo groups and followed up until one year after ablation. The primary endpoint is the cumulative nonrecurrence rate post three months and within one year after ablation. 7-day Holter monitoring (ECG patch) will be scheduled at 6,9, and 12 months after ablation for evaluating AA recurrence. Secondary endpoints include dronedarone withdrawal due to side effect or intolerance of AA recurrence, time to the first recurrence, repeat ablation, electrical cardioversion, unscheduled visit ,and rehospitalization. This trial will evaluate whether prolonged use of dronedarone effectively reduces recurrence rate after ablation in non-paroxysmal AF patients. The result of this trial will provide evidence for optimizing post-ablation anti-arrhythmic therapy. ;
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