First Results and Follow-up of a Second-generation Circular Mapping and Ablation Catheter

Overview

Journal J Interv Card Electrophysiol

Publisher Springer

Date 2016 May 28

PMID 27230934

Citations 6

Authors

Stefan Weber

Martin Hoher

Dominik Schultes

Affiliations

Soon will be listed here.

Abstract

Purpose: Pulmonary vein isolation with radiofrequency energy is widely used as a strategy for catheter ablation of atrial fibrillation (AF). Anatomically designed catheters have been developed to increase the efficiency of AF ablation procedures. The second-generation circular ablation catheter, PVAC GOLD, was re-designed to improve energy delivery and mitigate emboli. We investigated the procedural efficiency, biophysics, and chronic efficacy of PVAC GOLD in patients with AF.

Methods: We consecutively enrolled 40 patients (60 ± 11 years) with highly symptomatic, drug refractory AF. The first 20 patients were treated with the first-generation PVAC. The subsequent 20 patients were treated with the second-generation PVAC GOLD catheter. All patients were followed up at 3, 6, and 12 months.

Results: All 164 targeted PVs were successfully isolated. Ablations performed with PVAC GOLD showed a significant reduction in total number of ablations needed for PVI, fluoroscopy, and procedure times compared to PVAC (34.7 ± 7.0 vs. 27.0 ± 6.5; p = 0.009), fluoroscopy (29.5 ± 9.5 vs. 23.4 ± 7.0; p = 0.026), and procedure time (93.8 ± 18.9 vs. 83.1 ± 10.6; p = 0.033). PVAC GOLD showed improved biophysics including a reduction of low power ablations and an increase in mean effective energy delivery. At 12 months follow-up, AF recurrence rates were comparable in the two groups (35 vs. 30 %; p = 0.735). There were no adverse events.

Conclusions: The redesigned PVAC GOLD catheter demonstrates a reduction in radiofrequency ablation and procedure time and improved biophysics while maintaining chronic efficacy compared to the first-generation PVAC.

Citing Articles

Invasive strategies for rhythm control of atrial fibrillation: a narrative review.

Kim H, Lee C J Yeungnam Med Sci. 2024; 41(4):279-287.

PMID: 39307574 PMC: 11534407. DOI: 10.12701/jyms.2024.00703.

Atrial fibrillation: Primary prevention, secondary prevention, and prevention of thromboembolic complications: Part 2.

Trohman R, Huang H, Sharma P Front Cardiovasc Med. 2023; 9:1060096.

PMID: 36969508 PMC: 10036779. DOI: 10.3389/fcvm.2022.1060096.

Pulmonary vein isolation using second-generation single-shot devices: not all the same?.

Seidl P, Steinborn F, Costello-Boerrigter L, Surber R, Schulze P, Bottcher C J Interv Card Electrophysiol. 2020; 60(3):521-528.

PMID: 32415555 DOI: 10.1007/s10840-020-00751-9.

The Impact of Advances in Atrial Fibrillation Ablation Devices on the Incidence and Prevention of Complications.

Kece F, Zeppenfeld K, Trines S Arrhythm Electrophysiol Rev. 2018; 7(3):169-180.

PMID: 30416730 PMC: 6141930. DOI: 10.15420/aer.2018.7.3.

Clinical outcomes of AF patients treated with the first and second-generation of circular mapping and ablation catheter: insights from a real world multicenter experience.

Rovaris G, De Filippo P, Laurenzi F, Zanotto G, Bottoni N, Pozzi M J Interv Card Electrophysiol. 2017; 50(3):245-251.

PMID: 28875448 DOI: 10.1007/s10840-017-0278-y.

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