The frequencies of abnormal ECG increased along with ages, except sinus arrhythmias and preexcitation syndrome.
异常心电图除窦性心律失常、预激综合征外，异常率随年龄增高而递增；
Objective To study the effect and safety of aminophylline and anti-arrhythmias drugs in patients with arrhythmias with sinus bradycardia.
目的探讨氨茶碱联合抗心律失常药物治疗伴有窦性心律过缓的心律失常的疗效与安全性。
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