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本文用右室内起搏电极位置不同对心电轴的影响和追查过去心电图的方法,探讨CLBBB+LAD的发生机理和临床意义。结果提示,在CLBBB时,平均额面心电轴是由右束支内冲动通过空间隔的位置决定的。其临床意义可能是:1.CLBBB+RPFB;2.CLBBB+LAFB;3.CLBBB实际上是“不完全性”的LBBB。但迄今为止,CLBBB+LAD时,其中LAD的确切发生机理和意义无定论。
In this paper, the right ventricular pacing electrode position on the ECG axis and tracing past the ECG method to explore the pathogenesis of CLBBB + LAD and clinical significance. The results suggest that at CLBBB, the mean frontal plane ECG axis is determined by the position of the spatial separation of the impingement of the right bundle branch. Its clinical significance may be: 1. CLBBB + RPFB; 2. CLBBB + LAFB; 3. CLBBB is actually “incomplete” LBBB. However, so far, CLBBB + LAD, the exact mechanism and significance of which LAD uncertain.