A heartbeat of more than 40 beats per minute after stent placement in coronary artery disease is considered bradycardia, and treatment needs to be chosen based on the specific situation. A heartbeat below 60 beats per minute is generally considered bradycardia and carries some risk. Coronary heart disease after stenting heartbeat 40 times / minute, indicating that the heartbeat has been very slow, has led to insufficient blood supply to the heart caused by chest tightness and discomfort, dizziness, fatigue and other symptoms, need to identify the cause of the disease, targeted treatment. Bradycardia after coronary stent implantation can be seen in a variety of situations, such as sinus bradycardia, sick sinus node syndrome, atrioventricular block, etc.; can also be seen in drug-induced, such as oral beta-blockers. Generally because of organic changes in the heart, resulting in a long-term heart rate of about 40 beats per minute, and the combination of dizziness, black haze, or even fainting performance, it is recommended that under the guidance of a doctor to perform a temporary pacemaker insertion or permanent pacemaker insertion, etc., in order to improve the state of the heart rate. If it is caused by the drugs that slow down the heart rate, you can adjust the medication according to the doctor’s instructions, temporarily stop or reduce the amount of drugs, the general heart rate gradually recovered. Warm reminder: bradycardia can cause ischemia and other serious complications, need to actively follow the doctor’s instructions for treatment.