心房、房室结及心室相对不应期、功能不应期及有效不应期(erp)延长。
The relative refractory period, functional refractory period and effective refractory period (ERP) of right atrial, atrioventricular node and right ventricle were increased.
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.
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