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目前,对预激综合征(WPW)的诊断方法很多,如非躺卧ECG监护、UCG希氏束电图、电起搏等,最好的手段还是12导联常规ECG,最具有诊断意义的是δ波。除典型ECG表现外,医生亦须熟悉以下几点变异: 1.关于δ波:(1)δ波可能较小或仅仅为切迹,在同一个导联上可出现二个或二个以上的δ波,不典型的δ波为艾菲尔铁塔样或倒h样图形;(2)除普通常见的正向δ波外,尚有负向δ波。这种负向δ波,可类似于心肌梗塞图象;(3)δ波可出现于任何导联,即使发生在同一个病人,其大小.出现时间均不同,甚至可完全消失,因此需追踪观察或心电监护;(4)δ波可能仅在期前收缩中出现;(5)心动过速时δ波消失,但在心率、心律恢复正常后可再现;(6)在LGL综合征时无δ波;(7)R波左侧较深切
Currently, there are many diagnostic methods for WPW, such as non-lying ECG monitoring, UCG His, electroporation, etc. The best method is the 12-lead conventional ECG, the most diagnostic Is δ wave. In addition to the typical ECG findings, physicians must also be familiar with the following variations: 1. With respect to the delta wave: (1) The delta wave may be smaller or merely notch, and two or more δ-wave, the typical δ-wave for the Eiffel Tower or inverted h-like graphics; (2) in addition to the common normal δ-wave, there are negative δ wave. This negative δ-wave can be similar to a myocardial infarction image; (3) The δ-wave can appear in any lead, even if it occurs in the same patient, its size, occurrence time is different, or even disappear completely, Observation or ECG; (4) δ wave may only appear in the contraction before the period; (5) tachycardia wave disappeared, but in the heart rate, heart rate returned to normal after reproduction; (6) in the LGL syndrome No δ wave; (7) R wave deeper left