The incidence of coronary heart disease is increasing every year, and its risk of complications such as angina pectoris, myocardial infarction and heart failure is higher. Coronary heart disease is triggered by myocardial ischemia, hypoxia or necrosis due to luminal narrowing or occlusion caused by coronary atherosclerosis, and changes in heart rate can also affect the severity of myocardial ischemia. Therefore, it is especially important for patients with coronary heart disease to control their heart rate. Today we will learn how to manage heart rate in patients with coronary heart disease. 1, why should coronary heart disease patients control their heart rate Coronary heart disease is mainly a result of coronary artery stenosis and imbalance of blood supply and demand to the heart caused by insufficient blood supply to the myocardium, which in turn leads to angina? or even myocardial infarction. However, if the heart rate is faster the more blood oxygen is consumed. When the oxygen consumption of the heart is higher than the blood supply to the blood vessels, angina or myocardial infarction will occur. Therefore, it is imperative for patients with coronary artery disease to ensure an appropriately low heart rate. For patients with coronary artery disease, whether they have received a coronary stent or conservative treatment with medication, it is necessary to pay attention to getting the heart rate up to standard. 2, coronary heart disease patients heart rate control at what is appropriate Research has proven that when the resting heart rate (i.e., the heart rate in the quiet state, measured at quiet rest for at least 5 minutes) is too high, it is not good for human health and increases the risk of cardiovascular disease and the risk of death. To reduce the number of episodes of angina pectoris and myocardial infarction, the guidelines recommend that the resting heart rate should preferably be controlled at 55-60 beats/min. For patients with severe angina pectoris, the heart rate can be further reduced to 50 beats/min if there are no symptoms of bradycardia such as dizziness, weakness, transient darkness, chest tightness, shortness of breath, etc. However, below this value, the peripheral blood pressure may fall due to insufficient cardiac output, which may predispose the elderly Therefore, the heart rate should not be lower than 50 beats/min. Therefore, as long as there is no discomfort such as head and darkness in the elderly, a slower heart rate is better, generally below 60 beats per minute, and a slower heart rate can be relaxed to about 55 beats per minute. And for elderly patients with coronary heart disease, this mark can also be openly relaxed, in 55 to 60 times the best. 3, how to monitor the heart rate of coronary heart disease Measurement of heart rate can be done by counting the pulse, you can use a blood pressure meter to measure blood pressure will display the heart rate, you can also use the current smart watch, smart bracelet to help measure. It is best to measure your heart rate twice a day, once in the morning after you wake up, and once after you have sat down and rested for five minutes. The other time can be measured at any time, as long as it is the resting heart rate that is measured. The resting heart rate is the heart rate in the sitting or lying position after at least five minutes of quiet rest. The faster the heartbeat and the higher the heart rate, the more likely it is to aggravate the lack of blood supply. People with coronary artery disease would do well to keep their heart rate at 55-60 beats per minute, and for people who already have infarct conditions in their heart vessels, keep their heart rate at 50-60 beats per minute. It is important to monitor your heart rate regularly. A resting heart rate of more than 80 beats per minute or a resting heart rate of less than 50 beats per minute can cause long-term damage to the heart. Any heart rate that is too high or too low requires prompt medical attention.