Distinguishing of Concealed Septal Accessory Pathway and Atrioventricular Node Reentrant Tachycardia Using the Ventricular Extra-Stimulus During Tachycardia His Bundle Refractory

• His束逆传不应期心室早搏刺激鉴别间隔隐匿性旁道与房室结折返性心动过速