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目的观察药物对心房颤动心室率控制的疗效。方法分析70例心房颤动患者药物治疗动态心电图改变。结果地高辛明显增加长间歇频度(P<0.05),使长间歇的RR间期延长(P<0.05),心室率变化幅度增大。美托洛尔增加日间长间歇频度,但长间歇的RR间期无明显延长,心室率变化幅度下降。两药合用时心室率控制较好,长间歇增多,但长间歇的RR间期无明显延长。结论心房颤动控制心室率疗效美托洛尔明显优于地高辛,单用地高辛无益处,心衰时两药合用更易于控制心室率。
Objective To observe the effect of drugs on ventricular rate control of atrial fibrillation. Methods Analysis of 70 patients with atrial fibrillation in the treatment of dynamic ECG changes. Results Digoxin increased intermittent frequency significantly (P <0.05), prolonged intermittent RR interval prolonged (P <0.05) and increased amplitude of ventricular rate. Metoprolol increased daytime intermittent frequency, but long interval intermittent RR interval without significant prolongation, decreased ventricular rate of change. The two drugs combined ventricular rate control better, prolonged intermittent increased, but the intermittent RR interval was no significant prolongation. Conclusions Atrial fibrillation to control ventricular rate efficacy Metoprolol was significantly better than digoxin, digoxin alone was not beneficial, heart failure, when combined with two drugs easier to control ventricular rate.