老年房室结折返性心动过速的射频消融治疗特点

Treatment of Radiofrequency Catheter Ablation in Elderly Patients with Atrioventricular Node Reentrant Tachycardia

目的:探讨老年慢-快型房室结折返性心动过速(AVNRT)患者射频消融(RFCA)治疗的特点。方法:慢-快型AVNRT患者老年组28例,非老年组63例,采用中位法消融房室结慢径。结果:两组的手术成功率、复发率及并发症发生率差异均无显著性,但老年组有效消融功率为(25.1±10.1)w,对照组为(19.9±9.1)w(P<0.05);消融时间老年组为(332.3±144.7)s,对照组为(268±88.2)s,老年组高于非老年组(P<0.05)。结论:RFCA治疗老年AVNRT患者安全有效,但需较高的消融能量(消融功率和放电时间)。

To analyze the characteristics of radiofrequency catheter ablation(RFCA) in elderly patients with atrioven-tricular node reentrant tachycardia(AVNRT). Methods:Twenty-eight elderly patients and 63 young patients with AVNRT were treatecl with slow atrioventricular node pathway ablation. Results:The energy were (25.1 ± 10.1) w and (19.9 ± 9.1) w,and radiofrequency application time were (332.3± 144.7) s and (268?8.2) s in elderly and young patients respectively(P < 0.05). They were significant higher in elderly patients than that in young patients. There was no significant difference between two groups in success rate,recurrence rate and complications. Conclusion:RFCA is an effective and safe method in treating AVNRT for elderly patients. Higher effective radiofrequency energy is needed.