患者为—78岁男性,心率38次/分,律不整。心电图提示异常(完全性房室传导阻滞),P波与QRS波几乎各自出现,P—P间期840ms,R—R间期1,600ms,一部分P波传导到QRS波,是高度房室传导阻滞。另外QRS间期80ms是正常的。但是,认为是P波传下来的QPS波和从低位起搏点起搏的QRS波形不太一样,另外,否定缺血性变化。希氏束心电图在房室传导阻滞出现时,A波后有H波,V波前有H波。另外,传导时间A—H间期100ms,B-H间期30ms。H—V间期60ms,B—H和H— The patient was -78 years old, with a heart rate of 38 beats / min. Electrocardiogram abnormalities (complete atrioventricular block), P wave and QRS wave appear almost independently, P-P interval 840ms, R-R interval 1,600ms, a part of P wave conduction to QRS wave is atrioventricular conduction Blocking. Another QRS interval of 80ms is normal. However, QPS waves, which are thought to be transmitted by P waves, are not as identical as QRS waveforms that are pacing from lower pace points, and negative ischemic changes are also negated. His bundle beam ECG appears in the atrioventricular block, H wave A wave, V wave H wave. In addition, the conduction time A-H interval 100ms, B-H interval 30ms. H-V interval 60ms, B-H and H-