心电图对急性下壁心肌梗死患者梗死相关血管判断的价值  

The value of ECG in identifying the infarct-related artery in patients with acute inferior myocardial infarction

作　　者：孙同文[1] 张彦周[2] 李莉[3] 张彭湃[1] 邢晓文[1] 邱春光[1] 王乐信[1] 

机构地区：[1]郑州大学第一附属医院心内科,河南郑州市450052 [2]上海第二医科大学附属仁济医院心内科 [3]郑州大学第一附属医院急诊科

出　　处：《中国心血管病研究》2005年第2期97-99,共3页Chinese Journal of Cardiovascular Research

摘　　要：目的探讨心电图(ECG)对急性下壁心肌梗死患者梗死相关血管(IRA)判断的价值。方法筛选2002年7月～2004年7月我院心内科住院的急性下壁心肌梗死患者60例,回顾性分析其症状发作后24小时内ECG改变。结果Ⅰ导联ST段抬高,ST段抬高Ⅲ导联>Ⅱ导联,导联V4RST段抬高≥0.5mm,V1和V2导联ST段抬高或压低,aVR导联ST段压低。5项标准可用于判断急性下壁心肌梗死患者的IRA,而aVR导联ST段压低为一项新的标准。结论aVR导联ST段压低为判断急性下壁心肌梗死患者梗死相关血管(IRA)的新标准。Objective To investigate the Electrocardiography(ECG) criteria for identifying the infarct-related artery(IRA) in patients with acute inferior myocardial infarction(MI). Methods We retrospectively studied 60 patients with acute inferior MI hospitalized in the cardiovascular department of our hospital. The ECG recorded within 24h of the onset of symptoms were analyzed. Results Four previously described criteria were useful in identifying the Right Coronary Artery(RCA) or the Left Circumflex artery(LCX) as the IRA: ST-segment elevation in Lead Ⅰ;ST-segment more elevated in lead Ⅲ than in lead Ⅱ; ST-segment elevation≥0.5mm in lead V4R; ST-segment elevation or depression in lead V1 and V2.A new criteria was as useful as above 4: ST-segment depression in lead aVR. Conclusion The presence of ST-segment depression in lead aVR is a new criteria for identifying IRA in patients with acute inferior MI.

关 键 词：急性下壁心肌梗死 梗死相关血管 冠状动脉造影 

分 类 号：R540.4[医药卫生—心血管疾病] 1[医药卫生—内科学]