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. 2018 Apr 30;10(6):1855.
doi: 10.4022/jafib.1855. eCollection 2018 Apr.

Real-Time Recordings in Cryoballoon Pulmonary Veins Isolation: Comparison Between the 25mm and the 20mm Achieve Catheters

Francesca Salghetti  1   2 , Juan-Pablo Abugattas  1 , Valentina De Regibus  1 , Saverio Iacopino  3 , Ken Takarada  1 , Erwin Ströker  1 , Hugo-Enrique Coutiño  1 , Ian Lusoc  1 , Juan Sieira  1 , Lucio Capulzini  1 , Giacomo Mugnai  1 , Vincent Umbrain  4 , Stefan Beckers  4 , Pedro Brugada  1 , Carlo de Asmundis  1 , Gian-Battista Chierchia  1
Affiliations

Real-Time Recordings in Cryoballoon Pulmonary Veins Isolation: Comparison Between the 25mm and the 20mm Achieve Catheters

Francesca Salghetti et al. J Atr Fibrillation. .

Abstract

Aims: Real Time Recordings (RTR) of pulmonary vein (PV) activity provide important information in the setting of the 2nd generation Cryoballoon (CB-A), as a funcion of time to isolation. Visualization of RTR with the standard inner lumen mapping catheter (ILMC) 20mm Achieve (AC) is possible in roughly 50% of PVs. A novel 25mm-Achieve Advance (AC-A) has been developed with the aim of increasing the detection of RTR. The purpose of this study is to compare the AC-A with the AC, to feasibility and improvement of RTR.

Methods: We assigned 50 patients with paroxysmal or persistent atrial fibrillation to CB-A PVI, using the AC-A as ILMC. We compared this group with 50 patients, matched for age and left atrial volume, who previously underwent the CB-A PVI using the AC.

Results: RTR were more frequently observed with the AC-A than with the AC (74% vs 49%; p= 0.02). RTR in the left superior PVs was similar in both groups (74% vs 72%, p= 0.8). RTR with the AC-A were equally appreciated in left or right sided, superior or inferior PVs. No significant differences were found in terms of feasibility, procedure fluoroscopy and freezing times, nadir temperatures, and acute PVI.

Conclusions: CB-A PVI with the AC-A is feasible and safe in all PVs. The AC-A has proven significantly superior in visualising RTR if compared to the AC, affording RTR in 74% of PVs.

Keywords: Achieve Advance Catheter; Cryoballoon Pulmonary Vein Isolation; Real Time Recordings; Time To Pulmonary Vein Isolation.

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Figures

Figure 1A
Figure 1A. Novel 25mm Achieve Advance ILMC
Figure 1B
Figure 1B. Standard 20mm Achieve ILMC
Figure 1C
Figure 1C. Shaft of both ILMC
See this image and copyright information in PMC

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