Radiofrequency ablation of frequent premature ventricular contractions guided by CARTO
- VernacularTitle:CARTO电解剖标测指导频发室性早搏的射频消融
- Author:
Bing LIU
;
Qing ZHANG
;
Hexiang CHENG
- Publication Type:Journal Article
- Keywords:
tachycardia, ventricular;
atrioventricular nodal reentry;
catheter ablation;
CARTO system;
electroanatomic mapping
- From:
Medical Journal of Chinese People's Liberation Army
1983;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To assess the clinical efficacy of electroanatomically guided mapping and radiofrequency ablation under CARTO system for premature ventricular contraction. Methods The CARTO electroanatomical mapping system displays real time three dimensional chamber structure with electrical information related to signal amplitude and activation time. Drugrefractory and frequent premature ventricular contractions were ablated under CARTO system. Results Frequent premature ventricular contractions were successfully ablated in all 8 patients with mean 2.2?1.7 radiofrequency applications under CARTO system. 6/8 frequent premature ventricular contractions occured in right ventricule, and 2/8 in left ventricule. After ablation, the premature ventricular contractions declined from 24 711?5 612 beats/24h to 0-5 beats/24h, and patient′s symptoms almost disappeared. No recurrent case was found during a period of 3-12 months following observation, and the premature ventricular contractions remained ≤10 beats/24h. Conclusions The CARTO electroanatomical mapping system, referred to the electrophysiologic data, may be applied in guiding the radiofrequency ablation of drug-refractory and frequent premature ventricular contractions in those patients who have no organic heart disease for its safety and accurate orientation.
