The life expectancy after stenting is mainly related to the severity of the condition, whether or not the medical advice is followed, and the patient’s living habits. 1. If the patient’s condition is mild and there is no combination of coronary heart disease, after implantation of stent, the prognosis is generally better, and the life expectancy can reach a level similar to that of normal people. For patients with severe coronary artery disease such as myocardial infarction, implantation of stents can only solve the problem of localized stenosis, but the risk factors have not been relieved. Therefore, restenosis within the stent often occurs and requires regular checkups, and life expectancy is affected. 2. After implantation of stents, patients often need to take long-term antiplatelet therapy and lipid regulation therapy. If patients take them regularly for a long period of time and go to the hospital for regular checkups, the occurrence of in-stent restenosis can be effectively delayed and life expectancy can be prolonged. 3. Good living habits are especially important for patients implanted with cardiac stents. Patients should strictly quit smoking and drinking, do not stay up late at night, do not overwork, and avoid excessive intake of high-calorie food. After coronary stent implantation, patients should follow the doctor’s instructions for reasonable management, take medication regularly, and consult the doctor in time for any discomfort.