Radiofrequency catheter ablation of atrial tachycardia in children without structural heart disease
- VernacularTitle:无器质性心脏病儿童房性心动过速的射频消融治疗
- Author:
Jing ZHOU
;
Yansheng DING
;
Junjuan YANG
- Publication Type:Journal Article
- Keywords:
Tachycardia,ectopic atrial;
Catheter ablation;
Children
- From:
Chinese Journal of Interventional Cardiology
1993;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate electrophysiologic characteristics,the original site of atrial tachycardia(AT)and the results of radiofrequency catheter ablation(RFCA)in children without structural heart disease.Methods Electrophysiologic study and RFCA were performed in 46 children with AT.The site of origin of AT was mapped by using activation mapping during tachycardia.Magnetic electroanatomical mapping(CARTO system)for ablation of atrial tachycardia was performed in 4 patients.Preselecting a temperature of 50~60 ℃ was selected for ablation.Results Electrophysiologic study verified that the mechanism of all the tachycardias in 46 children was focal AT,which might be short paroxysmal,paroxysmal or persistent.1 child also had atrioventricular nodal reentrant tachycardia.ATs were successfully ablated in 41 children(89%),in which 39 had one original site(27 foci in right atrium and 12 foci in left atrium),2 had at least two original sites.Conclusion The success rate of RFCA in ATs of children without structural heart disease was relatively high.Atrial taclycardia could be eliminated by radiofrequency current with safety and efficacy.
