Article

[Clinical evaluation of catheter ablation for idiopathic ventricular arrhythmia originating from ventricular outflow tract].

Department of cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China.
Zhonghua yi xue za zhi 11/2007; 87(38):2685-8. pp.2685-8
Source: PubMed

ABSTRACT To study the ECG and electrophysiological characteristic of idiopathic ventricular tachycardia (VT) and premature ventricular contraction (PVC) originating from ventricular outflow tract and assess the clinical effect of radiofrequency catheter ablation (RFCA) for treatment.
105 patients aged from 12 to 73 years old were treated with RFCA. Activation mapping, pace mapping and non-contact mapping system of Ensite 3000 were used during the procedure.
(1) VT and PVC were successfully ablated in 97 out of the 105 patients (93.3%), 15 were recurrent but succeed in the second time. (2) 84 patients originated from right ventricle outflow tract (RVOT) and the remaining 21 patients from left ventricle outflow tract (LVOT). (3) 3 patients have the pericardial tamponade during ablation.
RFCA is an effective and curative therapy for ventricular arrhythmia originating from ventricular outflow tract.

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Keywords

73 years old
 
ablation
 
curative therapy
 
ECG
 
idiopathic ventricular tachycardia
 
pericardial tamponade
 
premature ventricular contraction
 
radiofrequency catheter ablation
 
remaining 21 patients
 
RFCA
 
second time
 
ventricle outflow tract
 
ventricular arrhythmia originating
 
ventricular outflow tract
 

Xiao-Yu Wu