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急性心肌梗死(AMI)的心电图(ECG)检查具有特征性的改变,并呈规律性演变,其敏感性高、特异性强、无创、便捷、重复性好,对AMI的定位、定性、评估预后等方面有着十分重要的作用[1-2]。典型的ECG变化是AMI诊断的重要参考依据,而且对AMI的分期有一定的指导意义,因此,ECG一直是临床诊断AMI的重要手段之一。但是,在临床工作中,由于多种因素如梗死部位、梗死范围、检查时间、多发或再发等影响,往往使ECG表现并不是特别典型,特别是合并束支
Electrocardiogram (ECG) examination of acute myocardial infarction (AMI) has a characteristic change, and showed regular changes, its high sensitivity, specificity, noninvasive, convenient and reproducible, the positioning of AMI, qualitative, prognosis Etc. has a very important role [1-2]. A typical ECG change is an important reference for the diagnosis of AMI, but also for the staging of AMI has some guidance, therefore, ECG has been an important means of clinical diagnosis of AMI. However, in clinical practice, the performance of ECG is often not particularly typical due to various factors such as infarct size, infarct size, examination time, multiple or recurrence, etc. Especially, the combined bundle branch