Ventricular tachycardia is an arrhythmic condition, which is divided into two cases: 1, for no structural heart disease but occurs ventricular tachycardia, clinically known as idiopathic tachycardia. 2, ventricular tachycardia is commonly found in patients suffering from a variety of organic heart disease, the most common coronary artery disease, the occurrence of myocardial infarction in the acute stage or the obsolete stage, cardiomyopathy, myocarditis, valvular disease, congenital hereditary heart disease, such as Brugada syndrome, which is an inherited ion channel disease. For example, Brugada syndrome is an inherited ion channel disease. Ventricular tachycardia in the clinical manifestations of: 1, light patients have palpitations, chest tightness, dizziness. 2, heavy manifestations of syncope, hypotension, acute heart failure, serious patients with ventricular tachycardia transformed into ventricular fibrillation and sudden death. 3, cardiac auscultation heart rate of 120-200 beats / min, the heart rhythm is slightly irregular, the first apical region of the heart sound of varying strengths, can be smelled splitting sound, jugular vein pulsation and cardiac pulse is not consistent.