(Disclaimer: This article is only for scientific purposes, in order to protect the patient’s privacy, the relevant information in the following content has been processed) Abstract: Acute ST-segment elevation myocardial infarction belongs to the more serious type of acute myocardial infarction, characterized by ST-segment elevation on electrocardiogram, a 76-year-old male patient suffered from this disease, so he came to our hospital, complaining of sudden chest tightness and wheezing, accompanied by profuse sweating, and was diagnosed by examination. After examination, the patient was diagnosed and given percutaneous coronary intervention and aspirin enteric-coated tablets and clopidogrel bisulfate tablets in our hospital, he recovered well and his condition was stabilized. Basic information] Male, 76 years old [Type of disease] Acute ST-segment elevation myocardial infarction [Hospital] The First Affiliated Hospital of Xi’an Jiaotong University [Time of consultation] January 2022 [Treatment plan] Surgery (percutaneous coronary intervention) + oral medication (aspirin enteric-coated tablets, clopidogrel bisulfate tablets) + infusion of medication (heparin sodium injection) [Treatment period] Hospitalization for one week, followed by a follow-up examination one month later. Treatment effect] Symptoms improved, condition stabilized I. Initial consultation The patient suddenly experienced chest tightness and wheezing, accompanied by sweating, self-consciousness and panic when resting in bed, with no relief, no other symptoms, and was not diagnosed outside the hospital, and came to our hospital for emergency treatment by his own car, and was initially diagnosed as acute ST-segment elevation (AST), and was initially diagnosed as sinus rhythm, with ST-segment elevation of V1-4 ≥0.3 mv. He was diagnosed as acute ST-segment elevation myocardial infarction and was admitted to the hospital for treatment. Since the onset of the disease, the patient’s consciousness was clear, his spirit was poor, and he did not eat or drink, but in the past week, his diet and nighttime sleep were fine, his urine and feces were normal, and his weight did not change significantly. The patient was admitted to the hospital to complete the examination of troponin, serum enzymology and other markers of myocardial injury, and the results showed that their values were significantly higher than normal. After communicating with the patient and his family, the percutaneous coronary intervention program was determined. In the patient’s skin surface puncture into the radial artery, placed in the arterial sheath through the side wall of the sheath tube injection of sodium heparin injection, in the guidewire-guided push catheter to the bottom of the coronary sinus, so that the guidewire into the coronary artery branch of the genus, to explore the stenosis of the expansion of the balloon, the stent was placed, the end of the procedure to send the patient to return to the ward. The patient was instructed to take aspirin enteric-coated tablets and clopidogrel bisulfate tablets. After 1 week, the patient recovered well and could be discharged from the hospital for convalescence. The patient had chest tightness and breathlessness, accompanied by profuse sweating and panic that could not be relieved before treatment. After being admitted to the hospital for percutaneous coronary intervention, coronary angiography was performed, showing that the stenosis was <20%. After 1 week of hospitalization, troponin and serum enzyme tests were rechecked, and the results fell back to the normal range. During the hospitalization period, the patient did not experience any other uncomfortable symptoms, and was discharged from the hospital for convalescence after relief of symptoms. One month after discharge, the patient returned to the hospital for a follow-up examination, and if there was any discomfort, he should consult a doctor in time, and continue to take aspirin enteric-coated tablets and clopidogrel bisulfate tablets to prevent postoperative thrombosis. Fourth, precautions After the patient's condition improved, I was sincerely happy. Considering that the disease has a tendency to relapse, I urge the patient to emphasize that the following points need to be noted in life: 1, after discharge from the hospital, strictly in accordance with the doctor's instructions to take medication, if there are any uncomfortable symptoms, consult a doctor in a timely manner, do not increase or decrease the amount of medication; 2, after discharge from the hospital, insist on the need for regular rechecking of electrocardiograms and markers of cardiac muscle injury, to learn about the recovery of the condition; 3, the condition can be stabilized with appropriate physical exercise, it is recommended that you choose gymnastics, walking, It is recommended to choose gymnastics, walking, tai chi and other low-intensity aerobic exercise; 4. Dietary advice is to choose light and easy to digest food, eat more fresh vegetables and fruits, and avoid consuming high salt and high fat food. V. Personal perception Acute ST-segment elevation myocardial infarction is a disease that occurs on the basis of coronary atherosclerosis with insufficient blood supply to the coronary artery, resulting in myocardial ischemia and necrosis, and it is characterized by weakness, breathlessness, palpitations, and anterior heart pain as the main symptoms. Therefore, once the above symptoms should be timely medical treatment, such as the case of this patient, due to timely treatment, did not cause adverse consequences.