摘要
目的 :探讨房室结折返性心动过速 (AVNRT)射频电消融 (RFCA)术后复发原因。方法 :对 2 0 2例A VNRT患者 RFCA术后进行随访 ,回顾性分析其电生理资料。结果 :2 0 2例中 12例复发 ,复发率 5 .9%。复发组7例 (5 8.3% )、非复发组 18例 (9.5 % )靶点数 <3,复发组 9例 (75 .0 % )、非复发组 17例 (8.9% )慢径残存 ,两组比较均差异有非常显著性意义 (P <0 .0 1) ,复发组 2例有明显的慢电位未加消融。结论 :消融靶点数 <3及慢径残存、慢电位靶点处未加消融是 RFCA治疗 AVNRT术后复发的主要原因。
Objective:To analysis the factors that were associated with the recurrence of atrioventricular nodal reentrant tachycardia (AVNRT) after selective radiofrequency catheter ablation (RFCA) on the slow pathway. Method:Two hundred and two consecutive patients with AVNRT after radiofrequency of atrioventricular node modification were followed up and their electrophysiologic data were retrospectively investigatd. Result:Clinical recurrence of AVNRT was documented in 12 patients (recurrence group) from 202 patients and no recurrence in 190 patients (no recurrence group). The recurrent rate was 5.9 %.Dual atrioventricular nodal pathway still presented after RFCA in 75% patients of recurrence group. Whereas it was 8.9 % in no recurrence group with significant difference presented between the two group (P< 0.01 ). Two patients with slow potential recurred in recurrence group, patients whose targets ablated less than 3, were 58.3 % in recurrence group, whereas they were 9.5 % in norecurrence group. There was a higher recurrent rate in patients whose targets less than 3 than in those whose targets more than 3 (P< 0.01 ).The AVNRT soon recurred in 2 patients, who had significant slow potential that was not ablated. Conclusion:①In order to eliminate the conduction of slow pathway, ablation must be conducted at least 3 sites. ②Slow potential expresses activity of slow pathway and ablation on slow potential is necessary. ③The physiology of dual pathway of atrioventricular node can not exists.
出处
《临床心血管病杂志》
CAS
CSCD
北大核心
2001年第5期199-201,共3页
Journal of Clinical Cardiology
关键词
房室结折返性心动过速
射频导管消融术
复发
Tachycardia, atrioventricular nodal
Catheter ablaion, radiofrequency
Recurrence
