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大部分特发性室性期前收缩起源于右心室流出道,少数起源于左心室流出道及二尖瓣、三尖瓣环、左心室间隔部附近。起源于左心室前间隔左前分支室性期前收缩的QRS形态与左前分支折返性特发性室性心动过速相似,绝大多数患者采用经股动脉逆行途径常规导管标测及射频导管消融(下称消融)安全有效,但少数患者由于心脏的解剖关系,消融导管在此处无法贴靠而消融失败。近期我院1例左心室前间隔左前分支室性期前收缩患者采用股动脉逆行途径普通消融导管消融失败,而采用穿
Most of the idiopathic ventricular contraction originated in the right ventricular outflow tract, a small number originated in the left ventricular outflow tract and the mitral valve, tricuspid annulus, near the left ventricular septum. Originated in the anterior left ventricular septal left anterior chamber ventricular contraction of the QRS morphology and left anterior reentrant ipsilateral ventricular tachycardia similar to the vast majority of patients with retrograde femoral artery routine catheterization and radiofrequency catheter ablation Hereinafter referred to as ablation) safe and effective, but a small number of patients because of the anatomy of the heart, the ablation catheter can not be here and ablation failed. Recently, a case of left anterior ventricular septal left ventricular premature ventricular contraction in patients with retrograde femoral artery ablation by conventional ablation failed, and the use of wear