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心电轴一般指的是额面QRS电轴,它可因心脏解剖位置而偏移,正常QRS的平均电轴为0°—+90°,其变异范围可在-30°—+110°之间,电轴偏移在很大程度上受生理条件因素影响,但电轴的异常偏移往往是心室肥厚,心肌梗塞,室内传导阻滞,心肌病变等引起。日常工作中迅速而熟练地目测心电轴的大概范围,结合病情作出相应推断为临床和科研分析提供一定帮助。
Cardiac axis generally refers to the frontal QRS axis, which can be offset by the anatomy of the heart, the average normal QRS axis is 0 ° - + 90 °, the variation can range from -30 ° - +110 ° Electrical axis deviation is largely affected by physiological conditions, but the abnormal deviation of the electrical axis is often caused by ventricular hypertrophy, myocardial infarction, ventricular conduction block, myocardial lesions. Daily work quickly and skillfully to visualize the approximate scope of the ECG axis, combined with the disease to make the corresponding inferences for clinical and scientific research to provide some help.