scholarly journals 216-19: Role of wide area circumferential pulmonary vein isolation in persistent atrial fibrillation: thermoCool surround flow catheter vs second generation cryoballoon

EP Europace ◽  
2016 ◽  
Vol 18 (suppl_1) ◽  
pp. i146-i146
Author(s):  
Laura Perrotta ◽  
Stefano Bordignon ◽  
Daniela Dugo ◽  
Fabrizio Bologna ◽  
Felix Weise ◽  
...  
2018 ◽  
Vol 29 (11) ◽  
pp. 1500-1507 ◽  
Author(s):  
Ersan Akkaya ◽  
Alexander Berkowitsch ◽  
Sergej Zaltsberg ◽  
Harald Greiss ◽  
Christian W. Hamm ◽  
...  

EP Europace ◽  
2020 ◽  
Vol 22 (8) ◽  
pp. 1197-1205
Author(s):  
Shu-Nan He ◽  
Ying Tian ◽  
Liang Shi ◽  
Yan-Jiang Wang ◽  
Bo-Qia Xie ◽  
...  

Abstract Aims Circumferential pulmonary vein isolation can be effective as sole treatment for persistent atrial fibrillation. However, identifying those patients who will respond to this therapy remains a challenge. We investigated the clinical value of the sequential low-dose ibutilide test for identifying patients with persistent atrial fibrillation in whom pulmonary vein isolation is effective as sole therapy. Methods and results In a prospective cohort of 180 consecutive patients with persistent atrial fibrillation, intravenous low-dose (0.004 mg/kg) ibutilide was administered 3 days before ablation and after the completion of circumferential pulmonary vein isolation. In patients in whom ibutilide did not terminate atrial fibrillation pre-procedurally, but successfully terminated it intraprocedurally, no further atrial substrate modification was performed. Pre-procedural low-dose ibutilide failed to terminate the arrhythmia in all patients with persistent atrial fibrillation, while pulmonary vein isolation ± low-dose ibutilide terminated persistent atrial fibrillation in 55 (30.6%) of them (PsAF group 1). The remaining 125 (69.4%) patients underwent electrogram-based ablation (PsAF Group 2). The control group comprised 379 consecutive patients with paroxysmal atrial fibrillation who underwent pulmonary vein isolation over the same period. At 24 months follow-up, 39 (70.9%) patients in PsAF Group 1 and 276 (72.8%) patients in the control group were free from atrial tachyarrhythmias (P = NS); the arrhythmia-free rates in both groups were higher than that in PsAF group 2 (58.4%, P = 0.005). Conclusion The sequential low-dose ibutilide test is a simple method for identifying patients with persistent atrial fibrillation in whom pulmonary vein isolation alone is an appropriate treatment strategy.


Author(s):  
Sapan Bhuta ◽  
Gustaf Sverin ◽  
Hiro Kawata ◽  
Malek Bashti ◽  
Jessica Hunter ◽  
...  

Background: Previous studies suggest that wide area circumferential pulmonary vein ablation (WACA) is more effective than segmental pulmonary vein ablation (SPVA) for pulmonary vein isolation (PVI) for treatment of atrial fibrillation. Whether this is true in patients (pts) with very short duration paroxysmal atrial fibrillation (PAF) is unknown. Objective: To compare WACA to SPVA in pts with PAF lasting <48 hours. Methods: One hundred pts with PAF <48 hours were randomized to either WACA vs SPVA (45 and 53 pts respectively, with 2 withdrawals), and followed up for 24 months with 14-day ECGs every 6 months. Results: Among 97 pts at an average of 22.1±4.8 months followup, 26 (57.8%) remained free of any atrial arrhythmias after WACA versus 29 (55.86%) after SPVA (p=0.64). Sixteen pts (35.6%) had recurrent PAF after WACA versus 20 pts (38.5%) after SPVA (p=0.79). Seven pts (15.6%) had atrial flutter after WACA versus 5 pts (9.64%) after SPVA (p=0.376) and 1 pt (2.2%) had atrial tachycardia after WACA vs 1 pt (1.9%) after SPVA (p=0.918). Total procedure time was lower for SPVA vs WACA (242.9 vs 271.1 minutes, p= 0.047), and fluoroscopy time similar for WACA vs SPVA (50.8 vs 53.4 minutes, p=0.555). Conclusions: As an initial ablation approach in pts with PAF <48 hours, SPVA was similarly effective to WACA with respect to arrhythmia recurrence, supporting the central role of the pulmonary veins for maintaining AF in these pts. Future therapies using alternative ablation energies may incorporate these insights to reduce risk to gastroesophageal structures.


2017 ◽  
Vol 4 (45) ◽  
pp. 33-34
Author(s):  
Michał Orczykowski

Second-generation cryoballoon (CB2) - based pulmonary vein isolation (PVI) has demonstrated encouraging clinical results in the treatment of paroxysmal (PAF) and persistent atrial fibrillation (PersAF). Nevertheless, the acute efficacy, safety, and long-term clinical results of CB2-based PVI in patients with a left common pulmonary vein (LCPV) are still a matter of debate. Commented paper by Heeger ChH, et al. analyzes this issue with some practical conclusions.


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