In the usual diagnosis and treatment process, there are some patients with premature beats, especially young patients with ventricular premature beats, checking the 24-hour ambulatory electrocardiogram found dozens of premature beats or even hundreds of premature beats, very nervous, that ventricular premature beats in the end is not serious, what are the symptoms, should not be nervous, and do you need to treat it? This article will briefly introduce some of the scientific knowledge of premature ventricular contractions. First, what is premature ventricular contractions? Premature ventricular contractions, also known as ventricular pre-systole, or premature ventricular contraction for short, is one of the most common arrhythmias in clinical practice, in which an abnormal excitation occurs in the ventricle before the normal rhythm (sinus excitation) arrives, causing the ventricle to de-polarize and further triggering contraction of the ventricle. It is one of the most common arrhythmias in clinical practice. Its essence is the early depolarization of the ventricular muscle, which can be seen in the normal population as well as in patients with organic heart disease, and it occurs in people of all ages. What are the clinical symptoms of premature ventricular arrhythmia? The most common symptoms of premature ventricular contraction are palpitations and intermittent heartbeats, but there are also many patients who have no obvious symptoms. When the number of ventricular premature patients will feel arrhythmia, the heart occasionally have a “feeling of falling”, chest tightness, precordial discomfort, dizziness, fatigue, shortness of breath, feel the pulse with intermittent. This is caused by the increase of heart beat after ventricular premature and the compensatory interval after preterm systole. Palpitations often make the patient’s main symptom and can trigger nervousness and anxiety, which increases catecholamines in the body, thus aggravating the frequency of premature ventricular beats. The detection rate is high by 24h ambulatory electrocardiogram. What are the classifications of premature ventricular contractions? Clinically, it is mainly categorized into ventricular premature beats without organic heart disease and ventricular premature beats with organic heart disease, in which premature ventricular beats without organic heart disease is also called functional ventricular premature beats, which is more common and common but most of them don’t need treatment. The latter is mostly caused by organic heart disease, mostly present like coronary heart disease, myocardial infarction, myocarditis and other diseases. Such patients generally have more obvious symptoms. Fourth, ventricular premature need treatment? According to the above classification, there is no organic heart disease ventricular premature that is functional ventricular premature, most do not need treatment. If the cause of premature ventricular contractions can be found, then as long as the causes of premature ventricular contractions (e.g., late night, exertion, etc.) are removed, premature ventricular contractions can be gradually reduced, and if necessary, sedative drugs can be taken to overcome tension and improve sleep. For those who cannot find the cause of premature ventricular contractions, ask your doctor to decide whether intervention for premature ventricular contractions is necessary. According to the latest Chinese Expert Consensus on Ventricular Arrhythmias, the indications for treatment are: patients whose clinical symptoms are not relieved after repeated explanations by a physician who informs them of the benign features of ventricular premature beats; asymptomatic and frequent ventricular premature beats need to be treated in some patients in whom prolonged imaging suggests a phased decline in left ventricular systolic function or an increase in ventricular volume; and, in patients with frequent ventricular premature beats even if they are not comorbid with other cardiac diseases, the treatment may be necessary. For patients with frequent ventricular premature beats, even if they do not have other heart disease, if the number of ventricular premature beats is >10,000 beats/24 hours or if the number of ventricular premature beats accounts for >10% of the total number of beats in a 24-hour period, which can affect the cardiac structure and cardiac function, ventricular enlargement and a decrease in the ejection fraction of the heart, active pharmacological treatment or radiofrequency ablation treatment may be considered. For symptomatic structural heart disease ventricular premature, the first choice is to optimize drug treatment, for patients with obvious symptoms of frequent ventricular premature, catheter ablation is feasible to cure ventricular premature.