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首页> 外文期刊>Circulation journal >Effects of Slow Pathway Ablation on Fast Pathway Function in Patients With Atrioventricular Nodal Reentrant Tachycardia – Cryo- vs. Radiofrequency Ablation –
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Effects of Slow Pathway Ablation on Fast Pathway Function in Patients With Atrioventricular Nodal Reentrant Tachycardia – Cryo- vs. Radiofrequency Ablation –

机译：慢速消融对房室结折返性心动过速患者的快速通路功能的影响–冷冻消融与射频消融–

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Background: In typical atrioventricular nodal reentrant tachycardia, radiofrequency (RF) ablation of the slow pathway (SP) is known to change the effective refractory period of the fast pathway (ERPFP) after successful RF ablation of the SP. The purpose of this study was to ascertain the mechanism of the ERPFP changes after SP ablation by comparing the results of both cryo- and RF ablation. Methods and Results: A total of 112 patients were enrolled prospectively and their electrophysiological properties analyzed before and after successful SP ablation. Patients were grouped into cryoablation (n=54) and RF ablation (n=58) groups and each group was subdivided into complete ablation (CG) and modification (MG) based on the presence of the SP after successful ablation. CG was performed in 64 patients: 30 by cryoablation and 34 by RF ablation. In patients who underwent complete SP ablation, the ERPFP was shortened significantly after cryoablation (375±74 vs. 281±39ms, PFP was shortened significantly (358±106 vs. 289±84ms, P=0.01) also after RF ablation without change in AH or SCL interval. Conclusions: ERPFP shortening was observed after complete SP ablation with both cryo- and RF ablation without significant changes in indices of autonomic activity. ( Circ J 2012; 76: 1091-1096)
机译：背景：在典型的房室结折返性心动过速中，已知射频（RF）消融慢通道（SP）会在射频消融成功后改变快速通道（ERP FP ）的有效不应期。 SP。本研究的目的是通过比较冷冻消融和射频消融的结果来确定SP消融后ERP FP 变化的机制。方法和结果：总共112例患者被前瞻性纳入，并分析了成功SP消融术前后的电生理特性。将患者分为冷冻消融组（n = 54）和射频消融组（n = 58）组，每组根据成功消融后SP的存在情况分为完全消融（CG）和修饰（MG）。在64例患者中进行了CG：冷冻消融30例，射频消融34例。完全消融的患者冷冻消融后ERP FP 显着缩短（375±74 vs. 281±39ms，PFP 显着缩短（358±106 vs. 289±84ms） RF消融后，AH或SCL间隔无变化，P = 0.01）结论：完全SP消融并冷冻和RF消融后，观察到ERP FP 缩短，而自主神经活动指数没有明显变化。（Circ J 2012; 76：1091-1096）

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