Under normal circumstances, a rapid heart rate can affect blood pressure and lead to an increase in blood pressure. First, when the heart rate is too fast, the heart ejection volume increases, the oxygen consumption of the heart increases, and the contraction force of the heart muscle strengthens, at which time the patient will experience sympathetic overexcitation, and the sympathetic excitation will increase the blood pressure. Second, a rapid heart rate will also activate the body’s neurological, humoral and endocrine systems, which will cause the body’s renin vasotonia and aldosterone system to be hypersecreted, which will also lead to a further increase in blood pressure. Third, when the heart rate is too fast, the preload and afterload of the heart will be increased, and blood pressure will also appear to increase. Therefore, under normal circumstances, if the heart rate is maintained at 60-100 beats per minute, it will not significantly affect the blood pressure, but a prolonged heart rate of >100 beats per minute will significantly lead to an increase in blood pressure.