The ECG characteristics of acute anterior wall myocardial infarction are mainly manifested by ST-segment elevation in the anterior chest leads. When acute anterior wall myocardial infarction is present, it is characterized by an elevation of the ST-segment arch in leads V1-V3 in a dorsal upward direction. In cases of extensive acute anterior wall myocardial infarction, this is manifested by an upward arch-dorsal elevation of the ST segment in leads V1-V6. In addition to the ECG, cardiac enzymes should be tested for the diagnosis of myocardial infarction. Serum troponin is more sensitive and can be elevated in 3-4 hours of infarction, while creatine kinase and creatine kinase isoenzyme are elevated after 6-8 hours, respectively. In case of acute infarction, coronary angiography should be done immediately if possible to check the location of the infarcted vessel and the degree of infarction, and depending on the degree of infarction, to decide whether stenting is needed.