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目前尚无法判断CRBBB之临床意义.有二种类型CRBBB.一种是近端阻滞,可能由孤立性病变引起,一种是远端阻滞,为弥漫性心肌损害之一部份,预后严重.Erook等人发现近端阻滞有二尖瓣到三尖瓣关闭时间(MVC-TVC)延长,而远端阻滞则是三尖瓣关闭到肺动脉瓣最大开放之间期(TVC-PVO_m)延长.因此作者对63例正
There is currently no way to judge the clinical significance of CRBBB. There are two types of CRBBB. One is proximal block, may be caused by isolated lesions, one is distal block, as part of diffuse myocardial damage, the prognosis is serious . Erook et al. Found that the proximal block had a mitral-to-tricuspid valve closure time (MVC-TVC) prolongation, while distal blockage was the tricuspid valve closure to the maximum open period of the pulmonary valve (TVC-PVO_m) So the author of 63 cases are positive