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患者女性,77岁。临床诊断:冠状动脉硬化性心脏病,急性左心衰。心电图(附图)为V_1导联,P波顺序快速发生,均齐,大部分P波重叠于前一T波降肢,窄QRS后因QT间期短,二者不重叠而使P波得以清晰显示,RR间距均等,与PP关系一致,PR间期固定,故宽窄QRS波均为室上性激动下传引起。每
Patient female, 77 years old. Clinical diagnosis: coronary heart disease, acute left heart failure. ECG (with photos) for the V_1 lead, P wave sequence occurred quickly, are homogeneous, most of the P wave overlap in the previous T wave descending, narrow QRS after QT interval is short, the two do not overlap and make P wave to Clearly shows that the RR interval is equal, consistent with the relationship between PP, PR interval is fixed, so the width and width of QRS wave are caused by supraventricular activation. each