Harrigan Richard A, Pollack Marc L, Chan Theodore C
Department of Emergency Medicine, Temple University Hospital, Jones Hall 10th Floor, Ontario Street & Park Avenue, Philadelphia, PA 19140, USA
J Emerg Med. 2003 Jul;25(1):67-77. doi: 10.1016/s0736-4679(03)00129-x.
Intraventricular conduction block is the general name given to a varied group of electrocardiographic entities. All share a common finding of some degree of delay in ventricular activation; recognition of these blocks hinges upon analysis of the QRS complex, as well as the ST-T changes associated with them. Bundle branch block (right or left), and fascicular block (left anterior or left posterior) are all examples of intraventricular conduction block. Causation of intraventricular conduction block may be cardiac or noncardiac; early recognition of the etiology may be of clinical importance. This article reviews the basic anatomy and physiology related to intraventricular conduction blocks, and then examines each in terms of electrocardiographic definition and clinical correlation.
室内传导阻滞是赋予一组不同心电图实体的统称。所有这些情况都有一个共同特点，即心室激动存在一定程度的延迟；对这些阻滞的识别取决于对QRS波群以及与之相关的ST-T改变的分析。束支阻滞（右束支或左束支）和分支阻滞（左前分支或左后分支）都是室内传导阻滞的例子。室内传导阻滞的病因可能是心脏性的或非心脏性的；早期识别病因可能具有临床重要性。本文回顾了与室内传导阻滞相关的基本解剖学和生理学知识，然后从心电图定义和临床相关性方面对每种情况进行了探讨。
