摘要
目的 :探讨心电图 STV3/ 比值 (STV3/ )对判断急性下壁心肌梗死 (AIMI)相关动脉及闭塞位置的作用。方法 :对 36例 AIMI患者的心电图和冠状动脉造影资料进行对比分析。结果 :1右冠状动脉 (RCA)近段、RCA远段、左旋支 (L CX)组 导联 ST段抬高程度依次减小 ,V3导联 ST段降低程度依次增加 ,但多无显著性差异 ;而STV3/ 在 3组间差异显著 (P <0 .0 5或 0 .0 0 1) ;2 STV3/ 的分布 :STV3/ <0 .5者在 RCA近段组占 13/ 17例 ,0 .5≤ STV3/ ≤ 1.2者在 RCA远段组占 9/ 13例 ,STV3/ >1.2者在 L CX组占 4/ 6例。 3以 STV3/ <0 .5预测 RCA近段的敏感性 76 .5 %、特异性 78.9% ,以 0 .5≤ STV3 / ≤ 1.2预测 RCA远段的敏感性 6 9.2 %、特异性 78.3% ,以STV3/ >1.2预测 L CX的敏感性 6 6 .7%、特异性 96 .7%。结论 :心电图 STV3 / 是判断 AIMI患者梗死相关动脉及闭塞位置较准确的新指标。
Objective:To investigate the value of the electrocardiogram in predicting the infarct-related artery and the location of occlusion in inferior wall acute myocardial infarction.Method:The early electrocardiogram and coronary angiographic findings in 36 patients with first time inferior wall acute myocardial infarction were analyzed.Result:①From the proximal right coronary artery (RCA) group,the distal RCA group to the left circumflex artery (LCX) gruop,the degree of STⅢ elevation decreased,whereas the degree of ST V 3 depression increased.But most of them were statistically insignificant.Among the three groups,there were significant differences in ST V 3/Ⅲ ratio (P< 0.05 or 0.001 ).②There were 13 out of 17 patients with ST V 3/Ⅲ < 0.5 in proximal RCA group,nine out of 13 patients with 0.5 ≤ST V 3/Ⅲ ≤ 1.2 in group distal RCA group, and four out of six patients with ST V 3/Ⅲ > 1.2 in LCA group LCX.The difference was statistically significant (P< 0.005 ).③The sensitivities and specificities were 76.5 % and 78.9 % respectively when ST V 3/Ⅲ < 0.5 was used to predict proximal RCA, 69.2 % and 78.3 % respectively when 0.5 ≤ST V 3/Ⅲ ≤ 1.2 was used to predict distal RCA, 66.7 % and 96.7 % respectively when ST V 3/Ⅲ > 1.2 was used to predict LCX.Conclusion:ST V 3/Ⅲ is an effective new electrocardiographic criteria in predicting the infarct-related artery and the location of occlusion in inferior wall acute myocardial infarction.
出处
《临床心血管病杂志》
CSCD
北大核心
2000年第9期390-392,共3页
Journal of Clinical Cardiology
