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猝死高危预警的新指标:缺血性J波 被引量:72

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摘要 临床不同病症引发急性心肌缺血事件或实验性动物心肌缺血发生时,心电图在其同时或紧跟其后新出现J波或原有J波出现增高,时限增宽时,称为缺血性J波,其有独特的心电图特征。研究表明:J波的形成与心外膜心肌细胞动作电位的1相切迹直接对应,并与Ito电流相关;缺血性J波单独出现,或与ST段抬高,或与T波电交替同时出现时均是心脏猝死的高危预警指标。
作者 郭继鸿
出处 《中国心脏起搏与心电生理杂志》 2008年第1期6-10,共5页 Chinese Journal of Cardiac Pacing and Electrophysiology
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