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患者女,58岁,2015年11月9日因“心悸二十余年,加重2天”来我院就诊,自诉既往先心病——室间隔缺损史,外院查动态心电图曾诊断心律失常—房室传导阻滞,具体类型不详。在我院门诊查心电图如图1所示,其长Ⅱ导图形及各PP间期、RR间期如图2所标示。分析:先观察第4个至第10个QRS波形,PP间期大致相等,RR间期大致相等(第4个RR间期1000ms,心率60bpm,但PR间期不恒定,且QRS波形态狭窄,考虑房室脱节伴交界
Patient female, 58 years old, November 9, 2015 Because of “heart palpitations more than 20 years, aggravating 2 days ” to our hospital, private prosecution previous heart disease - history of ventricular septal defect, outside the hospital check the ambulatory ECG has been diagnosed arrhythmia - Atrioventricular block, the specific type is unknown. In our hospital ECG examination shown in Figure 1, the long Ⅱ guide pattern and the PP interval, RR interval shown in Figure 2. Analysis: First observation of QRS waveforms from the first to the tenth, PP interval roughly equal, RR interval is roughly equal (the fourth RR interval of 1000ms, heart rate 60bpm, but the PR interval is not constant, and the QRS waveform is narrow, Consider the atrioventricular junction with the junction