摘要
目的 分析急性下壁心肌梗死侧壁导联 (I、AVL)心电图呈“镜像”改变对梗死相关动脉的预测价值。方法 根据 86例急性下壁心肌梗死患者侧壁导联心电图有无“镜像”改变 ,对比其与冠状动脉造影显示梗死相关动脉的关系。结果 I,AVL导联出现“镜像”改变对判断急性下壁心肌梗死梗死相关动脉为右冠状动脉的敏感性分别为 6 3.0 %和94 .5 % (P <0 .0 5 ) ,特异性分别为 76 .9%和 6 1.5 % (P <0 .0 5 )。AVL导联无“镜像”改变对判断梗死相关动脉为左回旋支的阳性预测值为 6 6 .7% ,阴性预测值为 93.2 %。结论 急性下壁心肌梗死I和AVL导联呈“镜像”改变是判断梗死相关动脉为右冠状动脉的较敏感指标 ,尤以AVL导联更敏感。AVL导联无“镜像”改变是判断梗死相关动脉为左回旋支的较好指标。
Objective Analysis of predictive value for 'minor'changes on lateral wall leads during inferior wall acute myocardial infarction. Methods Compare the 'minor'changes in lateral wall leads with the infarction related artery in 86 patients with inferior wall acute myocardial infarction. Results 'Minor'changes in lead I and AVL indicates right coronary artery associated inferior wall acute myocardial infarction with a sensitivity of 63.0% and 94.5%(P<0.05), and specificity of 76.9% and 61.5%(P<0.05). No 'minor'changes in lead AVL predicts left circumflex artery associated inferior wall acute myocardial infarction with positive predictive value of 66.7% and negative predictive value of 93.2%. Conclusion 'Minor'changes in lead I and AVL is a sensitive sign to identify right coronary artery associated inferior wall acute myocardial infarction being infarction related artery, and lead AVL is a even sensitive sign. No 'minor'changes in lead AVL is a good sign to identify left circumflex artery being infarction related artery.
出处
《中国心血管杂志》
2005年第1期29-30,49,共3页
Chinese Journal of Cardiovascular Medicine
关键词
急性心肌梗死
梗死相关动脉
心电图
Acute myocardial infarction
Infarction related artery
Electrocardiogram
