房室传导空隙现象(Gap Phenomena)是指心动周期某个时限内出现的房性激动不能传入心室,这一时限称为空隙区,而较早或较晚发生的房性激动却能下传。这种现象可以发生在前向或逆向的房室传导过程中。空隙现象具有与超常传导相似的心电图表现,属于“伪超常期传导”的一种。现就其发生机理、类型及其隐现因素等作一介绍如下。 Gap Phenomena refers to atrial instability occurs within a certain period of the cardiac cycle can not be introduced into the ventricle, this time limit is called the void area, while the earlier or later occurred atrial activation can be downloaded . This phenomenon can occur in the anterior or posterior chamber conduction process. Void phenomenon with abnormal conduction similar to the performance of ECG, a “pseudo-super-conduction” one. Now on its mechanism of occurrence, the type and its hidden factors such as an introduction is as follows.