心电图(EKG)和心电向量图(VCG)是心脏病的重要检查方法之一。各类型的先天性心脏病由于血液动力学的差异而导致不同房室肥厚和扩张,或具有某种特征性传导型。在临床上可根据其特点评判心脏负荷状况和劳损程度,有时可协助鉴别先心病的类型。但EKG和VCG也因缺陷程度和分流量大小而异。缺陷轻微和分流量较小者EKG和VCG可正常。EKG一般描记12导联。VCG多采用Frank导联连接法,同步描记F面(额面),S面(LS或RS,左侧面或 Electrocardiogram (EKG) and electrocardiogram (VCG) are important check-ups for heart disease. Various types of congenital heart disease due to hemodynamic differences lead to different atrioventricular hypertrophy and expansion, or have some characteristic conduction type. Clinically according to its characteristics to assess the status of cardiac stress and strain levels, and sometimes can help identify the type of congenital heart disease. However, EKG and VCG also vary depending on the degree of defects and the amount of sub-flow. EKG and VCG are normal with minor defects and minor shunts. EKG General Tracks 12 leads. VCG mostly use the Frank lead connection method, synchronous tracing F surface (front), S surface (LS or RS, the left side or