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Zero-fluoroscopy approach for ablation of supraventricular tachycardia using the Ensite NavX system: a multicenter experience.


ABSTRACT: BACKGROUND:Three-dimensional electroanatomic mapping systems have demonstrated a significant reduction in radiation exposure during radiofrequency catheter ablation procedures. We aimed to investigate the safety, feasibility and efficacy of a completely zero-fluoroscopy approach for catheter ablation of supraventricular tachycardia using the Ensite NavX navigation system compared with a conventional fluoroscopy approach. METHODS:A multicenter prospective non-randomized registry study was performed in seven centers from January 2013 to February 2018. Consecutive patients referred for catheter ablation of supraventricular tachycardia were assigned either to a completely zero-fluoroscopic approach (ZF) or conventional fluoroscopy approach (CF) according to the operator's preference. Patients with atrial tachycardia were excluded. RESULTS:Totally, 1020 patients were enrolled in ZF group; 2040 patients ablated by CF approach were selected for controls. There was no significant difference between the zero-fluoroscopy group and conventional fluoroscopy group as to procedure time (60.3?±?20.3 vs. 59.7?±?22.6?min, P?=?0.90), immediate success rate of procedure (98.8% vs. 99.2%, P?=?0.22), arrhythmia recurrence (0.4% vs. 0.5%, P?=?0.85), total success rate of procedure (98.4% vs. 98.8%, P?=?0.39) or complications (1.1% vs. 1.5%, P?=?0.41). Compared with the conventional fluoroscopy approach, the zero-fluoroscopy approach provided similar outcomes without compromising the safety or efficacy of the procedure. CONCLUSION:The completely zero-fluoroscopy approach demonstrated safety and efficacy comparable to a conventional fluoroscopy approach for catheter ablation of supraventricular tachycardia, and mitigated radiation exposure to both patients and operators. TRIAL REGISTRATION:clinicaltrials.gov Identifier: NCT03042078; first registered February 3, 2017; retrospectively registered.

SUBMITTER: Chen G 

PROVIDER: S-EPMC6996189 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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Zero-fluoroscopy approach for ablation of supraventricular tachycardia using the Ensite NavX system: a multicenter experience.

Chen Guangzhi G   Wang Yan Y   Proietti Riccardo R   Wang Xunzhang X   Ouyang Feifan F   Ma Chang Sheng CS   Yu Rong Hui RH   Zhao Chunxia C   Ma Kezhong K   Qiu Jie J   Liu Qigong Q   Wang Dao Wen DW  

BMC cardiovascular disorders 20200203 1


<h4>Background</h4>Three-dimensional electroanatomic mapping systems have demonstrated a significant reduction in radiation exposure during radiofrequency catheter ablation procedures. We aimed to investigate the safety, feasibility and efficacy of a completely zero-fluoroscopy approach for catheter ablation of supraventricular tachycardia using the Ensite NavX navigation system compared with a conventional fluoroscopy approach.<h4>Methods</h4>A multicenter prospective non-randomized registry st  ...[more]

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