急性心肌缺血事件中缺血性J波的临床意义及其演变对预后的影响  

The clinical significance of ischemic J waves and its evolutional and prognostic implication of acute cardiac ischemia

作　　者：吕常智[1] 赵利华[1] 

机构地区：[1]吉林大学第一医院心血管科,长春130021

出　　处：《中国实用内科杂志》2009年第1期80-82,共3页Chinese Journal of Practical Internal Medicine

摘　　要：缺血性J波发生的导联与心肌缺血的导联基本相同,因此二者具有良好的相关性。冠心病患者J波的出现是心肌严重缺血导致复极异常的标志,它与恶性室性心律失常的发生密切相关。在急性心脏缺血事件中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。因此在急性冠状动脉综合征患者中,缺血性J波的存在及其动态演变过程在对急性心肌缺血范围、缺血程度及其预后的判定具有重要的临床意义。Summary ：The ＂ischemic J wave＂ could be seen in myocardial ischemia electrocardiogram（ECG） changes and is considered as myocardial injury current. In coronary heart disease,J wave implicate abnormal repolarization due to serious myocardial ischmia, closely related to malignant ventricular arrhythmia. When present alone, or together with elevated ST segment or T wave, patients were at high risk of cardial sudden death. It had significant clinical value in evaluate the evolution and prognosis of acute myocardial ischemia.

关 键 词：缺血性J波 心电图 心律失常 

分 类 号：R5[医药卫生—内科学]