The severity of short-excursion ventricular tachycardia is usually not absolutely related to the number of episodes. Regardless of the number of episodes, as long as patients with short-excursion ventricular tachycardia experience clinical symptoms such as palpitations, chest tightness, and fainting, or if the short-excursion tachycardia changes into sustained ventricular tachycardia, short-excursion ventricular tachycardia is considered to be serious. Short bursts of ventricular tachycardia usually last less than 30 seconds and are self-terminating, so most patients have no clinical symptoms and are only detected during 24-hour ECG monitoring. When short bursts of ventricular tachycardia occur, it means that there may be organic heart disease, such as coronary artery disease, cardiomyopathy, heart failure, mitral valve prolapse, etc., and also includes metabolic diseases such as hyperkalemia, etc. A very small number of short bursts of ventricular tachycardia can occur in the population with no organic heart disease, which is called idiopathic ventricular tachycardia, which is usually not serious and does not need any special treatment, and can be monitored regularly. However, if short-excursion ventricular tachycardia develops clinical symptoms such as palpitations and chest tightness, or if it turns into sustained ventricular tachycardia, the patient may be at risk of sudden death, which is usually more serious and requires prompt treatment.