When some patients develop arrhythmias that affect the amount of myocardial ejection and affect the systemic blood supply, cardiogenic syncope and sudden cardiac death may occur, and a pacemaker is required. A pacemaker is a device that stimulates the beating of the heart. Pacemaker electrodes are placed inside the heart through minimally invasive surgery, as well as part of the device is placed under the skin of the chest for the purpose of treating arrhythmias. The considerations after pacemaker installation are as follows: 1. Whether the pacemaker can work normally: Patients are advised to visit the hospital regularly for a review of the electrocardiogram to find out whether the pacemaker can work normally; 2. Whether the pacemaker’s power is sufficient: If the pacemaker’s power is insufficient, it may need to be replaced; 3. Whether the heart rate returns to normal: If the pacemaker frequency is poor, it can be effectively managed by later adjustment and transfer. In conclusion, the doctor needs to provide effective health guidance according to the patient’s specific situation, and the patient needs to listen to the doctor’s and hospital’s advice and review regularly.