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左束枝传导阻滞(LBBB)发生率较右束枝传导阻滞(RBBB)为低,但予后较差。这大概是 LBBB 与影响左室的各种心脏病密切相关的缘故(即 LBBB 的各种心脏病发生率较高)。特别是 LBBB 与缺血性心脏病有密切的关系,虽然其产生机制至今尚未弄清。1973年检查8例 LBBB 的传导系统,影响部位主要在室间束分枝部与左束枝之间的交界处。但2例心肌梗死者其梗死部位在下侧壁,且与 LBBB 无直接关系。本文目的在于弄清25例产生 LBBB 的各种过程,其中包括11例心肌梗死。分析 LBBB 发
Left bundle branch block (LBBB) incidence than right bundle branch block (RBBB) is low, but after the poor. This is probably the reason that LBBB is closely associated with various heart diseases affecting the left ventricle (LBBB has a high incidence of various heart diseases). In particular, LBBB and ischemic heart disease are closely related, although its mechanism has not yet been clarified. In 1973, eight cases of the LBBB conduction system were examined, affecting the junction mainly between the branch of the bundle and the branch of the left bundle. However, infarction in 2 cases of myocardial infarction in the inferior wall, and no direct relationship with LBBB. The purpose of this paper is to clarify the 25 kinds of LBBB-producing process, including 11 cases of myocardial infarction. Analysis of LBBB hair