Lesson Thirteen Trifascicular Block

摘要：

@@ A complete trifascicular block would result in complete AV block. The idio ventricular rhythm has a slower rate and a wide QRS complex because the pacemaker is located at the peripheral part of the conduction system distal to the sites of the block1. Such a rhythm may be difficult to differentiate from bifascicular or bundle branch block combined with complete block at a higher level such as the AV node or His bundle2. Besides a slower ventricular rate, a change in the morphology of the QRS complex from a previous known bifascicular pattern would be strongly suggestive of a trifascicular origin of the complete AV block3. A His bundle recording is required for a definitive diagnosis, however.

机标关键词：QRS complex

所属期刊栏目：24

分类号：O4

在线出版日期：2005-06-02（万方平台首次上网日期，不代表论文的发表时间）

页数：共2页

页码：62-63