目的对房室结慢径消融术后快径路前传不应期的变化与房室结传导特性的关系进行分析。
Objective to analyze the relation between the changes of fast pathway antegrade effective refractory period after slow pathway ablation and the conductive features of atrioventricular node.
组，慢径消融后其快径前传功能不应期和有效不应期缩短不明显，随访期间有5例复发心动过速。
C group, function refractory period and effective refractory period not obviously shortened after slow pathway ablation, tachycardia for 5 patients while following up.
目的根据影像法射频消融房室结慢径是一相对盲目的方法，其单次放电的成功率低，导致房室阻滞的危险性高。
Objective Radiofrequency catheter ablation of slow pathway based only on fluoroscopy is relatively blind, with low success rate using single RF delivery, and has a high risk of atrioventricular block.
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