ABSTRACT
Objective To evaluate the feasibility of catheter ablation of Para-Hisian Atrial Tachycardia guide by CARTO. Method Catheter ablation guided by CARTO was performed after activation map in three patients with Para-Hisian Atrial Tachycardia. Result Successful ablation was got at right atrial in two patients and at non-coronary in one patient. Conclusion Catheter ablation guided by CARTO is safe and efficient for Para-Hisian Atrial Tachycardia.
ABSTRACT
Objective To evaluate the feasibility and effect of three-points ablation approach in in treatment of typical atrial flutter guided by CARTO. Methods Twenty-six patients with typical atrial flutter diagnosed by ECG and electrophysiological study (EPS) were enrolled in this study. Activation sequence mapping and linear ablation were performed in 11 patients (conventional group) . Three-points guided linear ablation with CARTO system was performed in another15 patients (three-points group) . Results There was no significant difference in the success rate between the two groups. Both the procedure and fluoroscopic time in three-points group were significantly shorter than that in conventional group [(72.66±29.82) vs (102.52±32.61) min;(4.26±2.76) vs (7.32±3.16) min] . Conclusions The three-points ablations approach is as safe and effective as conventional ablation approach in treatment of typical atrial flutter;however,the former can significantly shorten the procedure time and fluoroscopy time.
ABSTRACT
Objective To compare the cardiac function effect of right ventricular septum(RVS) pacing with that of right ventricular apex(RVA) pacing.Methods One hundred and six patients with indication of dual chamber pacemaker implantation were divide into two groups randomly.In each patient,influence of different pacing site to LVEF and pacing parameter were examined and left ventricular eject fractions were compared.Results All patients' operation were successful,LVEF of RVS group compared with that of RVA showed a significant difference.Conclusion The cardiac function are significantly different between right ventricular septum pacing group and right ventricular apex group.