单极起搏标测法在左后分支室性心动过速射频消融术中的应用

目的探讨单极标测法在特发性左后分支室性心动过速射频消融术中的应用。方法选择80例特发性左后分支室性心动过速的患者,随机分为两组,一组采用激动顺序标测法,另一组在激动顺序标测法的同时加用单极标测法进行标测,比较两组的手术成功率及消融功率、消融温度、放电有效时间、手术时间和平均阻抗。结果加用单极标测法治疗组与激动顺序标测法治疗组相比手术成功率分别是（36/37）97.3%,（41/43）95.3%,两组比较无显著性差异。但加用单极起搏标测法治疗组的实际消融功率、实际消融温度、放电有效时间及手术时间均低于激动顺序标测法治疗组,且两组比较有显著性差异P〈0.05。结论在导管消融治疗左后分支特发性室性心动过速中,加用单极标测法可用较低的消融功率、温度进行治疗,缩短了靶点标测及放电有效时间,从而提高手术效率。

Application of ventricular mapping electrode catheter in radiofrequency catheter ablation for ventricular tachycardia originating from the left posterior fascicular

Objective To study the application of ventricularm appling electrode catheter in radiofrequency catheter ablation(RFCA) for ventricular tachycardia originating from the left posterior fascicular.Methods Eighty patients with ventricular tachycardia originating from the left posterior fascicular were enrolled in this study and randomly divided into pace mapping group(group A) and pace mapping plus ventricularm aping electrode catheter mapping group(group B).Ablation was performed for all patients.Success oper...