影像与介入・ 2013年9月第10卷第27期
心电图在急性下壁心肌梗死相关动脉中的预测价值
耿晓玲
孙
磊
张永超
西安市第五医院陕西省中西医结合医院,陕西西安710082
[摘要】目的探讨心电图在急性下壁心肌梗死相关动脉中的预测价值。方法选取2010年2月~2012年2月西 安市第五医院收治的80例初步诊断为急性下壁性心肌梗死患者,根据患者的梗死相关动脉分为左回旋支动脉 组18例和右冠状动脉组62例,两组患者均给予心电图检查。比较两组患者心电图改变与梗死相关动脉的关系 及心电图各指标的灵敏度和特异度。结果严重慢性心律失常、合并右室梗死、ST 压低、sT 压低、ST1压低≥ 0.5 mm、ST1抬高≥0.5 mm、STm抬高≥STⅡ、ST L压低≥O.5 mm、ST L抬高≥0.5 mm、STv1抬高≥O.5 mm、STv2 w>0 在右冠状动脉组发生率高于左回旋支动脉组,差异有统计学意义(P<0.05):而V3/III≤1.2在两组间差异无统 计学意义(P>0.05)。在有冠状动脉组中,合并有室梗死、ST ,抬高≥0.5 mm、STI压低≥0.5 mm的阳性预测值和 特异度均为100.0%;STⅢ抬高≥STⅡ的灵敏度最高;ST 压低≥0.5 mm的阴性预测值最高。在左回旋支动脉组 中,ST肌抬高I>0.5 mm的阳性预测值和特异度均为100.0%;STf抬高/>0.5 mm的灵敏度最高;ST T抬高/>0.5 mm、 STⅢ抬高≤STⅡ的阴性预测值为最高。结论急性下壁心肌梗死以右冠状动脉为主要的梗死相关动脉,不同梗死 相关动脉在心电图的表现上存在一定的差异。心电图在急性下壁心肌梗死相关动脉预测中有重要的价值。 [关键词】心电图;急性下壁心肌梗死;梗死相关动脉;预测价值
[中图分类号1 R540.41 [文献标识码]A 【文章编号】1673-7210(2013)09(c)一0084—03
Predictive value of electrocardiogram in acute inferior wall myocardial
infarction related artery
GENG Xiaoling SUNLei ZHANG Yongchao
The Fith Hospiftal of Xi an City Shaanxi Hospital of Traditional Chinese and Western Medicine,Shaanxi Province, Xi an 710082,China
【Abstract】Objective To explore the predictive value of electrocardiogram(ECG)in acute inferior wall myocardial
infarction related artery.Methods 80 cases of primary diagnosis for patients with acute inferior wall myocardial
infarction were selected in the Fitfh Hospital of Xi'an City from February 2010 to February 2012,they were divided into left circumflex branch group in 1 8 cases and fight coronary artery group in 62 cases according to patients artery
infarction related artery,two groups of patients were given ECG examination.Two groups of patients with ECG changes and relationship of infarction related artery and ECG and the sensitivity of various indicators speciic degrees were fcompared.Results The severe chronic arrhythmia,with right ventficular infarction,ST I down up≥0.5 innl,ST 1 down up≥0.