心电图avL导联T波改变对判断左前降支前中段阻塞的预示意义

The Significance of T Wave Changes of av L Lead in ECG for Foreboding the Blocking of the Middle Part of Left Anterior Descending Branch of the Coronary Artery

目的探讨急性冠状动脉综合征中心电图av L导联T波改变对判断左前降支前中段阻塞的预示意义。方法经信息科检索中国医科大学附属盛京医院滑翔院区2009年1月至2010年7月因急性冠状动脉综合征入院并行冠状动脉造影的194例患者,其平均年龄为65岁,男140例,查阅其造影记录及心电图,按av L导联T波形态分为倒置组与非倒置组,通过Logistic回归分析av L导联T波与冠状动脉病变之间的关系。结果与av L导联T波非倒置组相比,T波倒置组的前降支中段狭窄程度更高(P<0.05)。T波倒置与前降支中段血管狭窄程度独立相关(P<0.05)。结论急性冠状动脉综合征中av L导联T波倒置与左前降支前中段阻塞独立相关,可作为预测左前降支前中段阻塞方法之一。

Aim To discuss the foreboding of av L lead T wave shape changes in ECG for the blocking of the coronary left anterior descending branch middle part in acute coronary syndrome. Methods Check the coronary angiography records and the electrocardiogram of the patients treated with coronary angiography in Shengjing Hospital in Huaxiang District of China Medical University from January 2009 to July 2010 due to acute coronary syndrome by information centre,in the 194 cases the average age was 65 years old,140 cases were male. According to av L leads T wave shape,the patients were divided into inversion group and non-inversion group to analyze the relationship of av L lead T-wave and coronary artery disease by Logistic regression analysis. Results Compared with non-av L lead T-wave inversion group,the stenosis of middle left anterior descending artery was higher in T-wave inversion stenosis group( P < 0. 05). T wave inversion and middle left anterior descending artery stenosis degree were independently associated( P < 0. 05). Conclusion Acute coronary syndrome av L lead T-wave inversion were independently associated with the blocking of the coronary left anterior descending branch middle part,which can be used as one of the foreboding methods of the blocking of the coronary left anterior descending branch middle part in acute coronary syndrome.