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室性早搏假设大量流行病学证据支持冠心病患者猝死的高危指标是室性早搏.但是,由于室性早搏普遍存在,使其作为危险指标受到明显的影响.这一表面上的矛盾可用某些特异室性早搏才具有危险性来解释.实际上在冠心病患者中,恶性室性早搏(反复性室性心动过速或R落在T波上的室性早搏)的发生与猝死易感性的增加相关.目前已确认引起猝死的直接机制是心室颤动,然而室性早搏是一个决定性的促发因子,抑或仅仅是碰巧,而主要是由于重症冠心病或严重心肌功能减退所引
Premature ventricular premature presupposition A large number of epidemiological evidence to support the high risk of sudden death in patients with coronary heart disease is premature ventricular contractions.However, due to the prevalence of premature ventricular contractions, make it as a risk indicator was significantly affected.This apparent contradiction can be used for some Specific ventricular premature bears are dangerous to explain.In fact, in patients with coronary heart disease, malignant ventricular premature beats (recurrent ventricular tachycardia or R falls on the T wave of premature ventricular contractions) and the occurrence of sudden death susceptibility Increased correlation has now been identified as the direct cause of sudden death is ventricular fibrillation, ventricular premature ventricular contractions, however, is a decisive factor, or just happen to be, but mainly due to severe coronary heart disease or severe myocardial dysfunction