辅用SR_0长鞘在慢径路消融治疗房室结折返性心动过速价值探讨

Value of Swartz long sheath in slow pathway ablation for treatment of atrioventricular nodal reentrant tachycardia

目的 探讨辅用ＳＲ０ 长鞘在慢径路消融治疗房室结折返性心动过速（ＡＶＮＲＴ）中的应用价值。方法 应用复合定位法慢径路消融治疗１７４ 例典型ＡＲＮＲＴ 患者，未用长鞘与辅用长鞘组各８７ 例。比较两组消融结果。结果 辅用长鞘组较对照组手术时间（６８±１７ ｍ ｉｎ ｖｓ ８５±２１ ｍ ｉｎ，Ｐ＜ ０．０１），Ｘ 线曝光时间（１４±１６ ｍ ｉｎ ｖｓ １８±９ ｍ ｉｎ，Ｐ＜ ０．０５），放电次数（３．２±２．５ ｖｓ ５．３±３．４，Ｐ＜ ０．０１）均显著减少。且辅用长鞘组８７ 例中，消融后慢径路消失者较多（５７ 例，６６％ ｖｓ ３９ 例，４５％ ，Ｐ＜ ０．０１）。结论 慢径消融中辅用ＳＲ０

Objective To assess the effect of Swartz long sheath on the results of slow pathway ablation for treatment of atrioventricular nodal reentrant tachycardia (AVNRT) Methods 174 patients with AVNRT were performed by catheter ablation on slow pathway Swartz SR 0 long sheath was utilized in 87 patients, no long sheath in another 87 cases as control group Results There were significant differences between two groups with respect to the procedure time (68±17 min vs 85±21 min, P <0 01), the fluoroscopic time (14±6 min vs 18±9 min, P <0 05), and number of radiofrequency delivered (3 2±2 5 vs 5 3±3 4, P <0 01) Complete elimination of slow pathway conduction occured in 57 patients with long sheath (66%), comparison with 39 in control group (45%) ( P <0 01) Conclusion This study demonstrated that the use of SR 0 long sheath in the slow pathway ablation was a safe and efficient method, which reduced the procedure time, the fluoroscopic time and the number of energy applications, also more contributed to complete elimination of slow pathway