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室性心动过速(简称室速)发生的可能机制主要有下列三种。一、折返折返是导致室速的主要机制。具备如下特征的心律失常,其发生机制往往为折返。①冠心病为常见病因,尤以陈旧性心肌梗塞合并室壁瘤者为最;②容易被电程序刺激诱发和终止;③很
Ventricular tachycardia (referred to as VT) the possible mechanism of the following three. First, reentry reentry is the main mechanism leading to VT. With the following characteristics of arrhythmia, its mechanism is often reentry. ① coronary heart disease is a common cause, especially in patients with old myocardial infarction complicated by aneurysm; ② easily induced and terminated by electrical stimulation; ③ very