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快频率依赖型左束支传导阻滞的心电图具有两个特点:(1)左束变传导阻滞为间断发生:(2)心率快到一定程度时出现,而心率慢到一定程度时消失。
Fast-frequency-dependent left bundle branch block ECG has two characteristics: (1) left bundle change block occurs intermittently: (2) when the heart rate approached to a certain extent, and disappeared when the heart rate slowed to a certain extent.