目的：评价房颤急性发作时静脉镁剂在转复窦性心律、降低心室反应和心动过缓风险方面的作用。
Objectives: to assess the effects of intravenous magnesium on converting acute onset atrial fibrillation to sinus rhythm, reducing ventricular response and risk of bradycardia.
在12个月时，93%的消融患者和35%的药物治疗患者未出现房颤。
Overall, at 12 months, 93% of ablation patients and 35% of the drug patients were free of atrial tachyarrhythmias.
结果发现房颤患者心室反应有其一定的昼夜节律，在凌晨4 时至5时达谷值，于上午10 时至11时达峰值。
Results The diurnal disfribution of ventricular response in patients with AF showed a regular circadian variation, The trough of heart rate were from 4Am to 5Am and peak at 10Am to 11Am.
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