In general, with active recovery after the placement of a cardiac stent, the impact on life expectancy is minimal and may be prolonged by the relief of the primary disease after the placement of the cardiac stent. However, without active recovery, re-stenosis of blood vessels may occur and may even lead to sudden death. Cardiac stenting, i.e. percutaneous coronary stenting, is a common clinical treatment for coronary artery disease. The technique is minimally invasive, less traumatic to the patient, and has mature technology with good therapeutic effect. If the patient receives strict medication and recovers well after coronary stent implantation, it generally will not affect the patient’s life expectancy, and it can also provide good relief of uncomfortable symptoms caused by myocardial ischemia and effectively prevent ventricular remodeling caused by cardiac compensation, thus prolonging the patient’s life to a certain extent. However, if complications such as in-stent thrombosis and restenosis occur after stent implantation, acute cardiovascular events may occur, leading to sudden death, but this is not directly related to the placement of stents. It is recommended that patients seek prompt medical attention for any discomfort and standardized treatment under the guidance of a physician.