室性心律失常,尤其是特发性室早和室速,起源于右室流出道者约60%～80%,凡起源于右室流出道的室早及室速多数能经射频消融术根除,且治疗的成功率高。近年来发现部分心电图特征符合右室流出道的室早或室速,后经标测最终在邻近部位的主动脉窦 Ventricular arrhythmias, especially idiopathic ventricular premature and ventricular tachycardia, originate in the right ventricular outflow tract about 60% to 80%, where originated in the right ventricular outflow tract ventricular tachycardia and ventricular tachycardia can be eradicated by radiofrequency ablation, And the success rate of treatment is high. In recent years found that some of the electrocardiogram characteristics consistent with right ventricular outflow tract ventricular tachycardia or ventricular tachycardia, after the final measurement in the vicinity of the aortic sinus