In clinical practice, the left anterior descending branch is one of the main blood vessels of the heart, so if a patient has a related lesion in the left anterior descending branch, it will trigger the patient to have symptoms of myocardial ischemia or myocardial infarction. For example, if a patient has a thrombus in the left anterior descending branch, causing blockage of the left anterior descending branch, the patient will experience symptoms of myocardial infarction, which may be characterized by chest tightness, chest pain, and even nausea and vomiting in some patients. At this time, the patient needs to go to the hospital urgently and then perform coronary angiography to clarify the extent of the blockage of the left anterior descending branch and decide whether to perform balloon dilation or left anterior descending artery stent implantation based on the intraoperative situation. It is important to note that once a stent is placed, oral anticoagulant medication is required and the patient’s coagulation function should be monitored.