预激症候群是由于房室之间存在着异常的传导组织,使心房冲动提早到达心室某一部分,并使之提早激动所致。典型的心电图表现:P—R 间期缩短,少于0.12秒,QRS 波增宽大于0.10秒,有delta 波。由于异常传导组织的不同和其终止部位的差异,可产生不同的心电图变化,主要的可归纳为A.B.C 三型。一般由于Kent 束传导所引起的预激综合症有典 Pre-shock syndrome is due to the presence of anomalous conduction between atrioventricular tissue, so that an atrial impulse early to reach a certain part of the heart chamber, and make it excited early. Typical ECG findings: P-R interval shortening, less than 0.12 seconds, QRS wave broadening greater than 0.10 seconds, a delta wave. Due to the difference between the abnormal conduction tissue and the termination of the site, can produce different ECG changes, the main can be summarized as A.B.C three types. Generally due to Kent beam conduction caused by pre-excitation syndrome Code