目的：观察安定对麻醉大鼠缺血性心律失常的作用。

Objective: to study the inhibitory effect of diazepam on ischemic arrhythmia in anesthetized rats.

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阵发性胸痛；动态心电图；心律失常；缺血性STT改变。

Paroxysmal chest pain; Holter; Arrhythmia; Ischemic STT segment deviation.

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目的：探讨急性心肌缺血时迷走神经刺激对老年大鼠缺血性室性心律失常的影响及其潜在的作用机制。

Objective: To investigate the effect of vagal nerve stimulation on ventricular arrhythmias during acute myocardial ischemia in aged rats.

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