The ECG report form contains basic information about the patient, the date of monitoring, the time of recording, and the results of the data recorded by the recorder, including the total number of heart beats, maximum/minimum/average heart rate, arrhythmias, pacemaker evaluation, ST-T changes, and analysis of heart rate abnormalities. Diagnostic hints: These are the possible conditions given by the physician based on the ECG results. Dynamic ECG examination must be combined with specific clinical manifestations and cannot be used as a stand-alone diagnostic modality. Common results of dynamic ECG Normal results: sinus rhythm, no significant abnormalities in Q-T interval, no significant abnormalities in P waves Abnormal results: 1. atrial preterm contraction (atrial premature beats): is a common clinical arrhythmia, normal people may also have such conditions, need to be combined with clinical symptoms to determine; if there is organic heart disease (heart tissue lesions) patients, need to further perform echocardiography If there is organic heart disease (heart tissue lesion), further echocardiography is needed to analyze the function of the heart, and blood routine, biochemistry, chest CT, etc. can be done to help screen the cause. 2, sinus atrial block: also known as sinus atrial block, is a tissue lesion around the sinus node leading to atrial ventricular arrest, for patients who appear temporarily and without symptoms, should be closely observed, no special treatment is needed, most can return to normal; for frequent, continuous attacks, serious symptoms, need to follow medical advice to take medication. 3, ST-T changes: This refers to the different waveforms of ECG, such as ST-segment elevation, ST-segment decrease or T-wave inversion changes, which indicate that the patient may have myocardial ischemia or myocardial lesions, combined with chest tightness, palpitations, chest pain and other symptoms to give drug treatment, if the situation does not improve, auxiliary other tests, such as cardiac CTA or coronary angiography If the condition does not improve, other tests such as cardiac CTA or coronary angiography are needed to confirm the diagnosis. 4, paroxysmal atrial fibrillation: is one of the most common arrhythmias in adults, the majority of patients with organic heart disease, rheumatic mitral valve lesions, coronary artery disease is the most common, need to conduct chest X-ray, echocardiography, coronary angiography for further diagnosis. 5. Ventricular premature contractions (ventricular premature contractions): benign ventricular premature contractions will gradually increase with age, but they will not affect health too much, and can be relieved by avoiding heavy drinking, smoking, anxiety and tension; if the ventricular premature contractions are caused by coronary heart disease or cardiomyopathy, further diagnosis is needed in combination with echocardiography, lipid and blood sugar measurement, and medication should be taken according to medical prescriptions if necessary. 6. Ventricular arrest: refers to the contraction of the atria, but the contraction of the two ventricles all stop, often accompanied by palpitations, syncope or angina pectoris, etc. Such cases should be placed early and timely with temporary artificial pacemakers to prevent sudden death.