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许多电生理学实验室使用程控心室刺激法,包括用多种频率对心室施放3个期外刺激;首先刺激的是右室尖部,如果需要,可于右室再选一个刺激点。然而,在诱发室速方面,还没有一种标准的或通用的方案。通常,用在右心室的两个部位作单或双期外刺激法的略多于用3个刺激的,第一个期外刺激在窦性节律期间施放,第二个刺激施放时间自基础驱动周期逐渐缩短,典型的范围是600～400ms. 本研究对293例有持续性或非持续性单形室性心动过速痛史的冠心病患者,分别用常规的和加速程序刺激方法进行了实验,并比较两者的敏感性、特异性和有效性。常规方法为在右室尖部、流出道或室间膈处,于
Many electrophysiology laboratories use program-controlled ventricular stimulation, which involves applying three extra-period stimuli to the ventricles at various frequencies; the first to be stimulated is the right ventricular tip, and a second stimulus can be selected in the right ventricle, if needed. However, there is no standard or generic solution to induce VT. Typically, the single extra or ambipolar stimulus used at both sites in the right ventricle is slightly more than the first extranodal stimulus administered with 3 stimuli during sinus rhythm, and the second stimulus is given from the basal drive The cycle gradually shortened, the typical range is 600 ~ 400ms.This study of 293 patients with persistent or non-sustained single-chamber ventricular tachycardia pain in patients with coronary heart disease, respectively, using conventional and accelerated stimulation program experiments , And compared the sensitivity, specificity and effectiveness of the two. Conventional approach is in the right ventricular apex, outflow tract or ventricular septum, at