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交替下传的文氏周期已有较多的研究。但交替隐匿性传导的反文氏现象尚未见报道,现将我们在心房调搏中所遇一例报告如下。 患者,男,36岁。临床诊断:心肌炎。常规心电图示快心率依赖性右束支传导阻滞。附图为在经食道心房调搏中描记的V_1导联。上行S_1S_1=280ms连续描记示:房室呈2:1传导,下传心搏SR间期逐次延长(190→240→250→260ms)并呈周期性
There are more studies on the Wen’s cycle of alternately downloading. However, the phenomenon of reverse occult transmission of occult conduction has not been reported, now we experience atrial pacing encountered in a report as follows. Patient, male, 36 years old. Clinical diagnosis: myocarditis. Routine ECG shows fast heart rate dependent right bundle branch block. The figure is the V 1 lead traced in transesophageal atrial pacing. The upward S_1S_1 = 280ms continuous tracing showed that the atrioventricular node showed a 2: 1 conduction and the descending heartbeat duration of SR was prolonged (190 → 240 → 250 → 260 ms)