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心电图(ECG)在急性心肌梗死(AMI)的诊断中有着非常重要的价值,伴随着AMI患者冠状动脉介入治疗(PCI)的广泛应用,依据ECG在AMI急性期判断梗死相关动脉(IRA)也越来越精确。但因下壁心肌供血动脉不同,使得IRA的确定有一定的难度;而对IRA及病变具体定位的判断,对病情评估、PCI风险评估与治疗策略的选择均有非常重要的临床意义。因此,国内外对此进行了许多相关的研究,证实通过ECG不同导联ST段变化的特点,可对急性下壁心肌梗死(AIMI)的IRA及定位做出较准确的推断。本文就AIMI ECG ST段变化的特点与IRA及病变定位的关系做一综述。
The electrocardiogram (ECG) is of great value in the diagnosis of acute myocardial infarction (AMI). With the extensive application of coronary intervention (AMI) in patients with AMI, the infarction related artery (IRA) is judged according to the ECG in the acute phase of AMI The more accurate. However, due to inferior myocardial supply artery different, making the determination of IRA have some difficulties; and IRA and lesions specific positioning of judgment, disease evaluation, PCI risk assessment and treatment strategies have very important clinical significance. Therefore, many related researches have been conducted both at home and abroad, confirming that the characteristics of ST segment changes in different leads of ECG can be used to make a more accurate inference of IRA and location of acute inferior myocardial infarction (AIMI). This article reviews the characteristics of AIMI ECG ST segment changes and the relationship between IRA and lesion location.