open access

Vol 22, No 2 (2015)
Original articles
Published online: 2015-04-28
Get Citation

Cryoballoon ablation of atrial fibrillation: How important is the proper selection of patients?

Maciej Wójcik, Alexander Berkowitsch, Sergey Zaltsberg, Christian W. Hamm, Heinz F. Pitschner, Malte Kuniss, Thomas Neumann
DOI: 10.5603/CJ.a2014.0100
·
Pubmed: 25563710
·
Cardiol J 2015;22(2):194-200.

open access

Vol 22, No 2 (2015)
Original articles
Published online: 2015-04-28

Abstract

Background: Relation between pre-procedural selection of patients and the success rate after a single cryoballoon ablation (CAB) procedure is unknown.

Methods: CAB was performed in 378 (65% male, median age 58 years, 85% paroxysmal atrial fibrillation [AF]) consecutive patients with symptomatic and drug refractory AF. The combined ALARMEc (Atrial fibrillation type, Left Atrium size, Renal insufficiency, Metabolic syndrome, cardiomyopathy) risk score was calculated for each individual patient. The end-point of the study was the first AF, atrial flutter or atrial tachycardia recurrence after the 3-month blanking period in the 1-year follow-up since the index procedure, in the absence of anti-arrhythmic (class I and III) therapy.

Results: Single and multi-catheter approach was used in 79% and 21% of patients, respec­tively. The acute success rate with single and multi-catheter approach was 79% and 99%, respectively. The overall 1-year success rate after a single CAB procedure was 70%. The 1-year outcome was: 83%, 70%, 60%, 40% and 29% in patients with ALARMEc risk score: 0, 1, 2, 3 and 5, respectively. Total rate of complications was 11%, including transient phrenic nerve palsy in 9.5% of cases.

Conclusions: Multi-catheter approach was needed in 21% of patients to achieve acute pulmo­nary vein isolation. Patients with low (≤ 1) ALARMEc risk score, preferably young individuals with sole paroxysmal AF (ALARMEc = 0), are best candidates for CBA procedure. Performing CBA in patients with higher (> 2) ALARMEc risk score should be avoided. Phrenic nerve palsy was a transient complication.

Abstract

Background: Relation between pre-procedural selection of patients and the success rate after a single cryoballoon ablation (CAB) procedure is unknown.

Methods: CAB was performed in 378 (65% male, median age 58 years, 85% paroxysmal atrial fibrillation [AF]) consecutive patients with symptomatic and drug refractory AF. The combined ALARMEc (Atrial fibrillation type, Left Atrium size, Renal insufficiency, Metabolic syndrome, cardiomyopathy) risk score was calculated for each individual patient. The end-point of the study was the first AF, atrial flutter or atrial tachycardia recurrence after the 3-month blanking period in the 1-year follow-up since the index procedure, in the absence of anti-arrhythmic (class I and III) therapy.

Results: Single and multi-catheter approach was used in 79% and 21% of patients, respec­tively. The acute success rate with single and multi-catheter approach was 79% and 99%, respectively. The overall 1-year success rate after a single CAB procedure was 70%. The 1-year outcome was: 83%, 70%, 60%, 40% and 29% in patients with ALARMEc risk score: 0, 1, 2, 3 and 5, respectively. Total rate of complications was 11%, including transient phrenic nerve palsy in 9.5% of cases.

Conclusions: Multi-catheter approach was needed in 21% of patients to achieve acute pulmo­nary vein isolation. Patients with low (≤ 1) ALARMEc risk score, preferably young individuals with sole paroxysmal AF (ALARMEc = 0), are best candidates for CBA procedure. Performing CBA in patients with higher (> 2) ALARMEc risk score should be avoided. Phrenic nerve palsy was a transient complication.

Get Citation

Keywords

atrial fibrillation, cryoballoon ablation, outcome, selection of patients

About this article
Title

Cryoballoon ablation of atrial fibrillation: How important is the proper selection of patients?

Journal

Cardiology Journal

Issue

Vol 22, No 2 (2015)

Pages

194-200

Published online

2015-04-28

DOI

10.5603/CJ.a2014.0100

Pubmed

25563710

Bibliographic record

Cardiol J 2015;22(2):194-200.

Keywords

atrial fibrillation
cryoballoon ablation
outcome
selection of patients

Authors

Maciej Wójcik
Alexander Berkowitsch
Sergey Zaltsberg
Christian W. Hamm
Heinz F. Pitschner
Malte Kuniss
Thomas Neumann

Important: This website uses cookies. More >>

The cookies allow us to identify your computer and find out details about your last visit. They remembering whether you've visited the site before, so that you remain logged in - or to help us work out how many new website visitors we get each month. Most internet browsers accept cookies automatically, but you can change the settings of your browser to erase cookies or prevent automatic acceptance if you prefer.

By "Via Medica sp. z o.o." sp.k., ul. Świętokrzyska 73, 80–180 Gdańsk, Poland
tel.:+48 58 320 94 94, fax:+48 58 320 94 60, e-mail: viamedica@viamedica.pl