According to national and international treatment protocols, patients are generally advised to review coronary angiograms at 6 months after the procedure. Patients who have received coronary interventions should visit the hospital promptly to determine if the recurrence of chest pain is a recurrence of angina pectoris. If the chest pain is not relieved, the patient should seek emergency medical attention to eliminate the symptoms as soon as possible. If the angiogram reveals restenosis in the interventional stent or other neointimal stenosis, the patient may choose to undergo another intervention or other treatments depending on the lesion. Patients receiving interventional treatment should strictly control various risk factors for coronary heart disease, such as smoking, hypertension, hyperlipidemia and diabetes mellitus, under the guidance of specialists. Only strict control of these risk factors can reduce the occurrence of new stenosis in other parts of the coronary arteries. Therefore, after discharge from the hospital, patients should regularly visit the hospital to see the specialist for follow-up, by developing or adjusting the treatment plan, so as to prevent coronary heart disease from continuing to bring harm to patients.