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无心脏病的室性心动过速室速可起源于左或右心室。心电图证实在61例特发性室速中右束支阻滞图形者22例,表明室速起源于间隔或左侧;左束支阻滞图形39例,表明室速起源于右心室。其中13例病人虽经数种抗心律失常药物治疗仍有症状,故采用射频导管消融。结果:在5例右束支阻速型室速病人经详细活动标测或起搏标测表明室速起源部位4例在左心室中下间隔,1例在左室心尖-室间隔段。左束支阻滞型室速的
Ventricular tachycardia without heart disease VT can originate in the left or right ventricle. ECG confirmed in 61 cases of idiopathic right ventricular bundle block diagram in 22 cases, indicating that the VT originated in the interval or the left; left bundle branch block pattern 39 cases, indicating that the VT originated in the right ventricle. Among them, 13 patients were treated with radiofrequency catheter ablation although they still had symptoms after being treated by several kinds of anti-arrhythmic drugs. Results: In 5 cases of right bundle-branch velocity VT patients, detailed activity mapping or pacing mapping showed that there were 4 cases of ventricular tachycardia in the left ventricle and 1 in the left ventricular apex-ventricular septum. Left bundle branch block type of VT