隐匿性传导(Concealed concluction)是指激动在传导途经中,已经传导了一段距离但又尚未“走毕全程”的一种传导受阻现象。从电生理的角度看,隐匿性传导实际上就是递减型传导。由于激动在临界相到达,此时心肌刚脱离绝对不应期,应激性较弱,由其引发的动作电位也较弱。这一较弱的激动在传导过程中连续发生进行性减弱,只能在 Concealed concluction refers to a type of obstruction of conduction that has been conducted for some distance during the course of conduction but has not yet been “fully completed.” From an electrophysiological point of view, occult conduction is actually a decreasing type of conduction. Due to the activation of the critical phase arrived at this time just leave the heart refractory refractory period, the stress is weak, caused by its action potential is weak. This weakened agitation continues to progressively weaken during the course of conduction, only at