In clinical practice, the coronary arteries are divided into the left main trunk, the left anterior descending branch and do gyrus branch, and the right coronary artery. The left anterior descending branch governs the anterior blood of the heart, is responsible for the contractile function of the heart, and is the main vessel of the heart in case of acute occlusion with more serious consequences. The left anterior descending branch belongs to one of the main blood vessels of the heart, so if a patient has a correlated lesion in the left anterior descending branch, it can 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 a blockage in the left anterior descending branch, the patient will have 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.