Modification of atrioventriculat node by radiofrequency ablation of slow pathway with inferior approach in 23 patients with superaventricular tachycardia
- VernacularTitle:下位法射频消融慢径路改良房室结治疗室上性心动过速23例
- Author:
Shulin WU
;
Haijie LI
- Publication Type:Journal Article
- Keywords:
tacbycardiasupraventricular;
slow pathway ablation inferior approach
- From:
Chinese Journal of Interventional Cardiology
1992;0(00):-
- CountryChina
- Language:Chinese
-
Abstract:
18 patients with atrioventricular nodal reentant tachycardia (AVNRT)and 5 patients with atrioventricular reentrant tachycardia (AVRT) with AVN double pathway (AVNDP) received radiofrequency ablation of slow pathway with inferior approach in order to modify AVN. AVNRT was induced in slow-fast form in 16 patients, in fast-slow form in one patients,and in coexistent slow-fast and fast-slow forms in one patients. Selective ablation of slow pathway was achieved in 18 patients. AVRT was induced in 5 patients (one obvient accessory pathway, 4 concealed accessory pathways) ,4 patients with reentrant cirucit of consisting of anterograde conduction by slow pathway of AVN and retrograde conduction by accessory pathway (AP) , one patient coexistent AVRT and AVNRT. Slow pathway in 5 patients and AP in 3 patients were successfully ablated. Junctional rhythm appeared in 21 patients during duation of discharge of radiofrequency current. No severe complicationwere noted. AVNRT in one patient recurred during a follow-up period of 1 to 15 months. The patient experienced second catheter ablation and was successed. It was suggested radlofrequency ablation of slow pathway with Inferior approach may be a method with high rate of success and less complication.
