Electrocardiographic localization diagnosis of myocardial infarction

ECG localization diagnosis of myocardial infarction can be divided into four types: inferior wall, right ventricular myocardial infarction, anterior septal wall, anterior wall myocardial infarction, high lateral wall myocardial infarction, extensive anterior wall myocardial infarction, which should be comprehensively judged by combining clinical symptoms, myocardial enzymes, etc., and coronary angiography should be performed if necessary. According to ECG localization diagnosis of myocardial infarction, it can be roughly divided into the following types: 1. Inferior wall and right ventricular myocardial infarction: Inferior wall and right ventricular myocardial infarction mainly involve right coronary artery. If ST segment elevation in V~V R leads occurs, it indicates right ventricular infarction. 2. Anterior septal wall and anterior wall myocardial infarction: Anterior septal wall and anterior wall myocardial infarction mainly involve anterior descending branch. If ST segment elevation in V~V leads occurs, it indicates anterior septal wall infarction. If ST segment elevation occurs in V and V leads, it indicates anterior wall infarction. 3. High lateral myocardial infarction: High lateral myocardial infarction mainly involves diagonal branch or circumflex branch. If ST segment elevation occurs in I and aVL leads, it indicates high lateral wall infarction. 4. Extensive anterior wall myocardial infarction: Extensive anterior myocardial infarction involving the proximal segment of the left anterior descending branch, such as V~V, I, aVL lead ST segment elevation, suggesting extensive anterior myocardial infarction. It should be noted that the ECG localization diagnosis of myocardial infarction needs to be combined with clinical symptoms, myocardial enzymes and other examinations. If necessary, coronary angiography can be used for definite diagnosis. At the same time, for special groups, such as pregnant women, patients with electrolyte disorders, etc., the ECG manifestations of myocardial infarction may not be typical, and other examinations need to be combined for diagnosis. If symptoms of suspected myocardial infarction occur, immediate medical attention should be sought for timely diagnosis and treatment.