三维标测系统Carto Univu在房室结折返性心动过速射频消融术中的应用效果评价

Evaluation on efficacy of 3D mapping system Carto Univu in radiofrequency ablation in treatment of patients with atrioventricular nodal reentrant tachycardia

目的:探讨三维标测系统(Carto Univu)在房室结折返性心动过速射频消融手术中的总辐射剂量、手术时间、并发症发生情况。方法:记录近6个月内在Carto Univu引导下完成的70例房室结折返性心动过速射频消融手术(Carto Univu组)的总辐射剂量、总手术时间、手术并发症,并与6个月前在二维标测技术引导下完成的70例房室结折返性心动过速射频消融手术(二维组)进行对比。结果:两组患者总手术时间差异无统计学意义。Carto Univu组总辐射剂量较二维组下降(P<0.05)。Carto Univu组后10例手术辐射时间、辐射剂量较前10例手术减少(P<0.05)。两组均无手术并发症发生。结论:Carto Univu引导下的房室结折返性心动过速射频消融手术中辐射剂量明显减少、学习曲线短,且不延长手术时间、不增加手术并发症,值得进一步推广。

Objective:To investigate the learning curve,radiation exposure,operation time and complications of3D mapping system(Carto Univu)in radiofrequency ablation in treatment of patients with atrioventricular nodal reentrant tachycardia(AVNRT).Methods:The total radiation dose,total operation time,and surgical complications of radiofrequency ablation under the guide of Carto Univu(the Carto Univu group)in70patients with AVNRT were recorded during6months,and were compared with those of radiofrequency ablation under the guide of two dimensional mapping technique(the2D group).Results:There was no significant difference in the total operation time between the two groups.The total radiation dose in the Carto Univu group decreased compared with the two dimensional group(P<0.05).The radiation time and radiation dose of the last10cases in the Carto Univu group were lower than the first10cases(P<0.05).There were no operation complications in the both two groups.Conclusions:In AVNRT,fluoroscopy integrated3D mapping contributes to a dramatic reduction in learning curve and radiation exposure without prolonging operation time or increasing complications.