Objective: To investigate the therapeutic effect of radiofrequency catheter ablation (RFCA) in the treatment of patients with rapid arrhythmia.Methods:353 cases of rapid arrhythmia were treated with RFCA, preoperative screening indications, contraindications, control risk factors, implement the premedication, no water loss, skin etc. operation, operation according to the different types of tachyarrhythmias, determine the target ablation, terminal, control discharge power, time, close monitoring of impedance and heart rate, according to effect timely termination point, intraoperative implement venous channel management, do to rescue, close observation of the signs, if necessary using heparin as anticoagulant.Results:The immediate success rate 98.02%, severe complications occurrence rate of 1.70%, 2.83% recurrence rate; AVNRT, ACRT immediate success rate higher than other types of fast arrhythmia (P< 0.05), no pneumothorax, deaths; before discharge. Patients with ventricular rate, shoot ejection fraction lower than that before treatment, QTd levels lower in the treatment before and last follow-up ventricular rate lower than the treatment, shot ejection fraction is higher than before treatment and before discharge and QTd were lower than those before treatment and higher than that of the prior to discharge,P< 0.05.Conclusion:RFCA in the treatment of rapid arrhythmia is better in the near future.%目的：探讨经导管射频消融（RFCA)治疗快速性心律失常治疗效果。方法：353例快速性心律失常患者采用RFCA治疗，术前筛查适应证、禁忌证，控制危险因素，落实术前用药、禁失水、备皮等操作，术中针对不同类型快速性心律失常，确定消融靶点、终点，控制放电功率、时间，严密监测阻抗与心率，据疗效适时终止放点，术中落实静脉通道管理、做好抢救准备、严密观察体征，必要时使用肝素抗凝。结果：即刻成功率98.02%，严重并发症发生率1.70%，复发率2.83%；AVNRT、ACRT即刻成功率高于其他类型快速性心律失常（P＜0.05），无气胸、死亡病例；出院前，患者心室率、射血分数低于治疗前，QTd水平低于治疗前，末次随访心室率低于治疗前、射血分数高于治疗前与出院前、QTd低于治疗前且高于出院前，P＜0.05。结论：RFCA治疗快速性心律失常近远期疗效均较好。
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