患者女性,10岁.健康体检时发现心律不齐.心电图(附图)均为V_1导联,后3行为连续描记.见窦性心律,P-P间距0.65—0.73s,平均心率87次/min,R-R间期呈进行性延长.上行从R_4—R_(11)的R-R间期由0.14s逐渐延长至0.30s,随后出现一个长间歇文氏周期终止;其后第1个P-R间期又缩短至0.13s,另一组文氏周期开始.本例文氏周期还具有以下特点:每一 The patient’s females, aged 10. Healthy arrhythmias were found during the physical examination.The electrocardiograms (images) were all Vl leads followed by continuous tracings.3 After sinus rhythm, the PP interval was 0.65-0.73s with an average heart rate of 87 beats / min, RR interval was prolonged.Ascending the RR interval from R_4-R_ (11) gradually extended from 0.14s to 0.30s, followed by a long intermittent Wen’s cycle termination; then the first PR interval shortened to 0.13s, another set of Wen’s cycle begins. The Wen’s cycle of this example also has the following characteristics: each