Analysis of therapeutic effect and target location of radiofrequency catheter ablation for idiopathic left ventricular tachycardia
10.3760/cma.j.issn.1008-6706.2011.04.007
- VernacularTitle:左室特发性室性心动过速射频消融的疗效及靶点位置分析
- Author:
Jidong LIU
;
Zhaoliang SHAN
;
Yutang WANG
;
Hongyang GUO
;
Ye ZHANG
;
Zhenyu ZHONG
- Publication Type:Journal Article
- Keywords:
Electrophysiology;
Idiopathic left ventricular tachycardia;
Radiofrequency catheter ablatio
- From:
Chinese Journal of Primary Medicine and Pharmacy
2011;18(4):447-449
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo observe the therapeutic effect of radiofrequency catheter ablation for idiopathic left ventricular tachycardia.To explore the relationship between surface electrocardiography and successful radiofrequency ablation location. MethodsThe electrophysiological data of surface electrocardiography and radiofrequency ablation,and the data of Holter in postorperation after 24 h and a half months,and tracking follow-up of 30 patients (23 males and 7 females)with idiopathic left ventricular tachycardia onset were retrospectively analyzed. ResultsRadiofrequency catheter ablation was successful in 29 patients(96.7%).The Holter was conducted in 29patients before and after the operation,the difference in average beats/24h before the operation(20 997 ± 10 786)and after the operation(921 ± 1 337)was statistically significant(P＜0.01).During the period of 1 to 3 months follow-up,2 patients relapsed and were all successfully re-ablated.No complication was found.The ventricular tachycardia lesions in left ventricular septum were found in 21 patients,of which 19 cases were located in a quadrant axis (-75.83 ± 19.36)°(-30 °～-90 °),and those in the left ventricular apex were in 9 cases,of which 7 cases were in the 2 quadrant axis(-102.6 ± 5.93)°(-91 °～-110 °). ConclusionRadiofrequency catheter ablation was an effeetive treatment technique for idiopathic left ventricular tachycardia with high successful rate,it could be selected as the first line treatment in patients with idiopathic left ventricular tachycardia.During idiopathic left ventricular tachycardia onset,the surface electrocardiography could help determine the initial site of ventricular tachycardia.
