Putting in a stent at age 49 does not determine if you will live to 80. Stenting can improve the blood supply to the heart and relieve associated heart disease, but it does not have a direct impact on the patient’s life expectancy. Life expectancy varies depending on the patient’s condition, healing and complications. If the patient’s condition is serious, there is a probability of recurrence of heart failure, arrhythmia, and in severe cases, infarction again, which will have an impact on life expectancy. Therefore, it is also necessary to follow the doctor’s instructions to carry out regular re-examinations after the operation, to keep observing the changes in the condition and make the most reasonable treatment. Cardiac stenting, also known as coronary artery stenting, is an interventional treatment to unclog arterial blood vessels. Cardiac stents are mainly used for unstable angina, myocardial infarction and other diseases with insufficient blood supply to the heart.