Successful radiofrequency ablation of atrioventricular nodal reentrant tachycardia at the mitral annulus
- VernacularTitle:在二尖瓣环成功消融房室结折返性心动过速
- Author:
Jing ZHOU
;
Yansheng DING
;
Junjuan YANG
- Publication Type:Journal Article
- Keywords:
Tachycardia,atrioventricular nodal reentry;
Electrophysiology;
Radiofrequency ablation
- From:
Chinese Journal of Interventional Cardiology
1993;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the electrophysiological characteristics of atrioventricular nodal reentrant tachycardia(AVNRT) requiring ablation at the mitral annulus.Methods Ablation was carried out at the mitral annulus by mapping the slow pathway with resetting method in order to acquire the electrophysiological parameters needed for successful ablation of AVNRT.Results Three cases with AVNRT who had prior failed ablation were successfully ablated by targeting the slow pathway located at the mitral annulus.The location of the left-sided slow pathway was selected by a positive resetting response and verified by junctional automaticity elicited by radiofrequency application and elimination of tachycardia.Conclusion AVNRT refractory to ablation of slow pathway at the posteroseptal area may require ablation at the mitral annulus.Resetting response may help to locate the slow pathway along the mitral annulus.
