论文部分内容阅读
交界区的文氏周期是很常见的形象,它表现为P-R间期逐渐延长,终于发生一次QRS脱漏,而后重新开始。交界区的反文氏周期也不罕见,它表现为当2:1房室传导阻滞时,下传心搏的P-R间期呈进行性缩短,在以最短的P-R间期下传心搏之后,心房激动又接踵下传一次,但此次P-R间期最长。而在同一份心电图上两种周期交替出现者并不多见。我们见到的本图二导联连续记录,心房频率187次/分,QRS波群宽0.12秒,为房性心动过速伴完全性右束支传导阻滞。上行前七个QRS系由心房激动连续
The Wen’s cycle in the junctional region is a common image, showing a gradual increase in the P-R interval and finally a QRS leak and finally a resumption. It is also not uncommon for the anti-Wechsler cycle in the junctional region to appear to be a progressive shortening of the PR interval of asymptomatic heartbeat when 2: 1 atrioventricular block is performed. After the ascending heart beats with the shortest PR interval , Atrial activation followed by another pass, but the longest PR interval. And in the same ECG alternating between the two cycles are rare. We see the second lead of this graph recorded continuously, atrial frequency of 187 beats / min, QRS wave group width of 0.12 seconds for atrial tachycardia with complete right bundle branch block. Upstream of the first seven QRS system by atrial activation continuous