Fast heartbeat and fast heartbeat are not necessarily the same. Fast heartbeat is simply fast heart rate, that is, tachycardia, which includes cases of fast heart rate, such as sinus tachycardia, supraventricular tachycardia, rapid atrial fibrillation, transient atrial tachycardia, ventricular tachycardia, etc., all of which can lead to fast heartbeat and panic. For example, if your heart rate is slow, you may also feel panic. Clinically, sinus bradycardia with arrhythmia can cause panic, and atrioventricular block can also cause panic. The 24-hour ambulatory ECG can accurately detect the specific situation of panic and fast heartbeat, which is of great significance for diagnosis and treatment.