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患者女性,29岁,主诉:发作性心悸十余年。体检:心律不齐,心脏无器质性杂音。心脏透视:形态大小正常。超声心动图正常。1984年6月作心电图检查诊断为窦性心动过缓、插入性室早伴房室交界区伪文氏现象和阵发性室速(多源性)。附图为Ⅱ导联记录,示窦性心律,P-P间期1.04秒,心率约58次/分;P-R间期0.12秒。于R_1后出现插入性室性早搏,其后窦性心搏的P-R间期逐渐延长:R′-P时间愈来愈短。P_1-R为0.12秒,P_2-R为0.20秒,P_3-R为0.30秒。以后随以短阵室性心动过速(多源性),故P_4未能下传,组成第一个文氏周期。第5个窦性心搏的P-R间期为0.21秒,系受阵发性室速的影响,较原来窦性P-R间期(0.12秒)为长。以后窦性心搏的P-R间期又逐渐延长;R′-R逐
Patient female, 29 years old, chief complaint: onset of heart palpitations more than ten years. Physical examination: arrhythmia, heart no organic noise. Heart perspective: normal size. Echocardiography normal. June 1984 for electrocardiographic diagnosis of sinus bradycardia, intercoventral ventricular anterior chamber with pseudo-Wen’s phenomenon and paroxysmal ventricular tachycardia (polygenic). The figure for the II lead record shows sinus rhythm, P-P interval 1.04 seconds, heart rate of about 58 beats / min; P-R interval of 0.12 seconds. Interventricular premature ventricular contractions occurred after R_1, followed by sinus rhythm P-R interval gradually extended: R’-P time shorter and shorter. P_1-R is 0.12 seconds, P_2-R is 0.20 seconds, and P_3-R is 0.30 seconds. After with paroxysmal ventricular tachycardia (multi-source), so P_4 failed to download, composed of the first Wen’s cycle. P-R interval of the fifth sinus heartbeat was 0.21 seconds, which was affected by paroxysmal VT, which was longer than the original sinus P-R interval (0.12 seconds). After sinus beats P-R interval and gradually extended; R’-R by