An electrocardiogram for cardiac neurosis may or may not be abnormal, and prompt medical attention is recommended. Cardiac neurosis is a clinical syndrome with no organic changes, often caused by psychosomatic problems or neurological dysfunction. The main manifestations are heart-related symptoms such as palpitations and precordial pain. Generally this palpitation symptom is mostly a subjective feeling of the patient himself, and there may be no obvious abnormality when doing ECG examination. Sometimes the examination may show sinus tachycardia, transient paroxysmal supraventricular tachycardia, atrial and ventricular pre-systole and other arrhythmias, which need to consult a doctor in time to identify with organic diseases, and take medicines such as metoprolol to control the heart rate under the guidance of a doctor if necessary. If there is any discomfort, it is recommended to consult a doctor in time for standardized diagnosis and treatment.