Application Of The Contact Force Catheter In Zero-fluoroscopy Radiofrequency Catheter Ablation Of Atrioventricular Nodal Reentrant Tachycardia

The purpose of this prospective study was to compare the safety,feasibility,and efficacy of a completely nonfluoroscopic approach to RFCA of atrioventricular nodal reentrant tachycardia with contact-force catheter using CART03 and conventional fluoroscopic guidance.Methods:We prospectively enrolled 28 consecutive patients with AVNRT between October 2015 and September 2016 who were to receive CART03 mapping-guided zero-fluoroscopy ablation using contact force catheter(experimental group),compared to 30 consecutive patients who underwent RFCA with fluoroscopic guidance only(control group).Ablation power,the number of RF applications,immediate success rate,complication rates and total operation time were analyzed.Results:There was no difference between the two groups regarding success rates,total operation time and complication rates.The experimental group received fewer ablation applications and lower ablation power.Conclusion:The zero-fluoroscopy approach using contact force in AVNRT is feasible,safe and effective.It can reduce the radiation risks for medical workers and patients.