If the patient suddenly develops panic and rapid heartbeat, it is considered to be due to the patient’s own disorder of vegetative nerve function regulation, or cardiac neurosis will be prone to sudden rapid or slow heartbeat. Some patients may also experience paroxysmal supraventricular tachycardia, or atrial fibrillation or atrial flutter. Patients are advised to have an electrocardiogram, preferably at the onset of uncomfortable symptoms, to help clarify what type of arrhythmia is present and whether there is myocardial ischemia. When a patient has an angina attack, the main manifestation may be panic and rapid heartbeat. If it is due to myocardial ischemia, it is important to improve the myocardial ischemia, such as taking metoprolol, aspirin, or trimetazidine tablets, to help better relieve the symptoms. If it is simple sinus tachycardia, patients are advised to take beta-blockers, with other drugs that inhibit sympathetic excitability, represented by bisoprolol, metoprolol, and also combined with oral heart stabilizer pellets.