Long-term accelerated heartbeat has adverse effects on the body, resulting in increased myocardial contraction, faster cardiac conduction velocity, and increased oxygen consumption by cardiomyocytes, and therefore, insufficient blood and oxygen supply to cardiomyocytes, as well as increased cardiac conduction velocity, causing a significant increase in myocardial preload and afterload. Patients may experience varying degrees of blood pressure instability and myocardial contractility insufficiency, which may lead to left heart failure, right heart failure, or even total heart failure in the long term, as well as malignant arrhythmias, thus aggravating cardiogenic shock. If the patient is not treated in time, it can also lead to myocardial infarction and even the possibility of sudden death. Therefore, for patients with long-term rapid heartbeat, it is important to actively search for the primary cause and treat it according to the primary cause, otherwise once myocardial infarction occurs, the consequences are serious.