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左束支的间隔分支阻滞近年来已日益受到临床和心电图工作者的重视,一般认为它的主要心向量图特征为横面QRS 环体向前移位;心电图改变的特征为右胸导联出现高R波,左胸导联正常的小q 波消失。因而在诊断上往往着重于与其他以前向电力增大为特征的心电图异常如右室肥厚、右束支阻滞、A 型预激征、后壁心肌梗塞、肥厚性心肌病
In recent years, the branch branch block of left bundle branch has been paid more and more attention by clinical and electrocardiogram workers. It is generally considered that its main cardiac vector map feature is the forward displacement of lateral QRS ring body. The change of ECG is characterized by right chest lead High R wave appears, the left chest lead normal small q-wave disappeared. Therefore, the diagnosis is often focused on with other previously characterized by abnormal ECG abnormalities such as right ventricular hypertrophy, right bundle branch block, A pre-excitation, posterior wall myocardial infarction, hypertrophic cardiomyopathy