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Clinical study of axis of No Man's Land of multiple ventricular originating sites by analysis the pacing 12-lead body-surface electrocardiogram

By 侯爱军, 郭继鸿, 李学斌, 张萍, 王龙, 许原 and 张海澄

Abstract

目的观察心室不同部位起搏时体表心电图QRS波额面无人区电轴的发生情况,探讨无人区电轴在不同部位的室性异位激动中的意义.方法将左右心室分为12个区域.43例患者快速心律失常射频消融术成功后,应用消融导管在左、右心室的不同分区行高于自主心率的固率起搏并同步记录体表12导联起搏心电图,测量Ⅰ、Ⅲ标准导联QRS波振幅的代数和并计算QRS波平均心电轴.结果左、右心室共起搏279例次,其中35例次起搏心电图发生额面电轴位于无人区,均起源于左室.28例次心电轴位于-90°~150°之间,7例次心电轴位于-150°~-180°之间.右室不同分区的起搏心电图均未出现无人区电轴,左室分区中除前壁基底部以外的起搏部位都可能出现无人区电轴.结论起源于左室多个区域的异位激动的额面电轴都可位于无人区,起源于右室的异位激动未出现无人区电轴.北京大学校科研和校改项目0291-941

Topics: 起搏, 心室分区, 心电轴, 无人区
Publisher: 临床心电学杂志
Year: 2006
DOI identifier: 10.3969/j.issn.1005-0272.2006.02.002
OAI identifier: oai:localhost:20.500.11897/211197
Journal:
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