METHODS: An observational, single center study was conducted over a 30-month period. B-RFA were performed using dedicated radio frequency (RF) generator and electroanatomic mapping system.
RESULTS: Twenty-four procedures, in 23 patients with a median (range) of 1 (1-2) previously failed unipolar ablation procedures, were included in the final analysis. There were 12 ablations of ventricular arrhythmias originating from interventricular septum with an acute success rate of 75%, and 12 from left ventricular (LV) summit with an acute success rate of 58%. The midterm success rate (median interquartile range follow-up of 205 days [188-338]) was 66% and 50%, respectively.
CONCLUSIONS: B-RFA is a promising method of catheter ablation for refractory cardiac arrhythmias. A higher success rate was observed in ablation for difficult ventricular arrhythmias originating from interventricular septal region than LV summit.
方法:观察性,单中心研究进行了30个月.使用专用射频(RF)发生器和电解剖标测系统进行B-RFA。
结果:24个程序,在23位先前失败的单极消融手术的中位数(范围)为1(1-2)的患者中,包括在最终分析中。有12例起源于室间隔的室性心律失常消融,急性成功率为75%。和12从左心室(LV)的顶峰,急性成功率为58%。中期成功率(中位数四分位距随访205天[188-338])为66%和50%,分别。
结论:B-RFA是一种有前途的导管消融治疗顽固性心律失常的方法。对于起源于室间隔区的难治性室性心律失常,消融的成功率高于LV峰顶。