More than two years after the stent, and adhere to the medication, and then every time to monitor the heart rate of 84, this time the heart rate is within the normal range, but did not improve the other checks, did not improve the other physical examination and auxiliary examination, so can not judge whether it is a normal situation. After cardiac stent surgery need to detect the patient’s heart rate and heart rhythm, the heart rate is 84, belongs to the normal heart rate, but did not detect the normal heart rhythm, it is recommended to improve the dynamic electrocardiogram. And improve the physical examination of the heart, the initial understanding of the heart condition. Regular medication is needed after cardiac stent surgery. Anticoagulant medication is necessary after stent surgery to prevent the formation of blood clots in the stent. Whether the anticoagulants are used properly or not, the coagulation function and fecal occult blood need to be monitored. In addition, blood tests, renal function, and electrocardiogram should be repeated. Lipid profile should also be checked if the patient has other chronic diseases, such as hyperglycemia, hyperlipidemia, and hypertension. If any chest discomfort occurs after cardiac stenting, patients should go to the hospital immediately.