Guided by Carto System for Mapping and Ablation Classics Atrial Flutter

Objective To evaluate the clinical application of Carto system for mapping and ablation of classic atrial flutter (AF).Methods A total of 14 patients with classic AF were completed electroanatomic reconstruction and activation sequence mapping under Carto system.AF was terminated by ablation cavo-tricuspid isthmus with irrigating ablation catheter.Bilateral conduction block along ablation lesion was identified under program stimulation.The acute success rate of ablation,operation time,fluoroscopy time and complication were observed.The long term efficacy of ablation was studied by index follow up.Results All AF were successfully activation sequence mapped and terminated during ablation in whom 10 were type Ⅰ AF and 4 were type Ⅱ AF.The operation time,fluoroscopy time and discharge time was(2.5±0.5)hrs,(15±5.5)min and(23.1±13.4)min respectively.All patients were achieved bilateral conduction block along ablation lesion with SA interval of(120±15)ms.No recurrence was observed during follow up.Conclusion Guided by Carto system for mapping and ablation of classic AF is efficient and fluoroscopy and operation time is significantly reduced.