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12导联体表心电图上诊断慢性肺心病的阳性率约30％,而向量图阳性率可达90％左右。若能将肺心病在向量图的特异改变在心电图上有所反映,这将提高心电图对肺心病的诊断率。为探讨这一设想,我们应用常规心电图12导联加做右胸导联(VR),对正常组、单纯的肺气肿组、肺心病组进行了对照观察,报告如下: 1.资料与观察方法:3组对象均用常规心电图记录12导联,并加做V_3R至V_6R4个VR,记录的VR,将心室肌的除极波QRS波群后1/2部分的R波或V波,可以认为是右心室心向量图终末前向量或终末向量环在右胸导联轴正极侧的投影,将该波命名为续发R(secondR),与QRS波群其他波型相区别。 2.结果:见附表。
12 lead body surface ECG diagnosis of chronic pulmonary heart disease positive rate of about 30%, while the vector positive rate of up to 90%. If the specific changes in the vector diagram of pulmonary heart disease can be reflected in the ECG, which will improve the diagnosis of pulmonary heart disease ECG. To explore this idea, we use the conventional lead 12 plus right chest lead (VR), the normal group, simple emphysema group, pulmonary heart disease group were observed and controlled, the report is as follows: 1. Data and observations Methods: Subjects in all three groups recorded 12 leads with conventional electrocardiogram and added V_3R to V_6R4 VRs. The VR recorded recorded the R wave or V wave in the 1/2 part of the ventricular muscle after the QRS complex of the polar wave It is considered as the projection of the terminal vector or terminal vector ring on the positive side of the right chest lead axis in the right ventricular cardiac vector map. The wave is named R (secondR) and is distinguished from other wave patterns of QRS complex. 2. Results: See Schedule.