Abstract 15020: Ablation of Paroxysmal Atrial Fibrillation Applying an Improved Cryoballoon: is Reduction of Freezing Time Possible?
Introduction: Cryoballoon (CB) ablation has been adopted by many centers worldwide for treatment of atrial fibrillation (AF). An improved version of the CB providing homogeneous cooling at its total frontal side has been introduced (Arctic Front Advance™, Medtronic). Hypothesis: We aimed to evaluate...
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crovidcr:10.1161/circ.130.suppl_2.15020 2023-05-15T15:16:57+02:00 Abstract 15020: Ablation of Paroxysmal Atrial Fibrillation Applying an Improved Cryoballoon: is Reduction of Freezing Time Possible? Nölker, Georg Molatta, Stephan Koch, Frauke Hossain, M. Sajid Bullert, Kevin Horstkotte, Dieter Gutleben, Klaus-Jürgen 2014 http://dx.doi.org/10.1161/circ.130.suppl_2.15020 en eng Ovid Technologies (Wolters Kluwer Health) Circulation volume 130, issue suppl_2 ISSN 0009-7322 1524-4539 Physiology (medical) Cardiology and Cardiovascular Medicine journal-article 2014 crovidcr https://doi.org/10.1161/circ.130.suppl_2.15020 2022-05-29T06:38:43Z Introduction: Cryoballoon (CB) ablation has been adopted by many centers worldwide for treatment of atrial fibrillation (AF). An improved version of the CB providing homogeneous cooling at its total frontal side has been introduced (Arctic Front Advance™, Medtronic). Hypothesis: We aimed to evaluate whether reduction of cooling times in application of this advanced CB is possible without affecting the outcome. Methods: A total of 94 patients (pts) (44 male, 58 ± 13 years) suffering from paroxysmal AF were prospectively assigned to CB pulmonary vein isolation choosing either 2 x 4 minutes (group 1) or 2 x 3 minutes (group 2) of freezing per vein. In case of pull-down maneuvers 120 s application time at the superior edge was followed by additional freezing of 3 or 4 minutes respectively after pull-down. Follow-up at 3, 6 months completed in all pts. included a clinical visit and a 7-day Holter or a readout of an implanted device for evaluation of AF burden. Results: Groups were well balanced in terms of left atrial size, left ventricular function, concomitant diseases and duration of AF. Total procedure time was reduced from 116±28 to 109±23 minutes (p=n.s.). Freezing time per pt decreased from 38.7±8.2 to 31.2±6.9 minutes (p<0.00001). Fluoroscopy time was similar between the groups (10.3±5.8; 12.1±5.5 min.; p=n.s.). During a follow-up of 6.4±1.8 months recurrence of AF was observed in 11 % of pts in group 1 versus 29 % of pts in group 2 (p=0.04). No major complications occurred in either group. Conclusions: Based on our preliminary findings, reduction of freezing time in CB ablation applying the improved version of the CB catheter seems to increase recurrence of AF. Therefore, it might be advisable to maintain longer freezing times. A prolonged follow-up will be available and presented at the meeting. Article in Journal/Newspaper Arctic Ovid (via Crossref) Arctic Circulation 130 suppl_2 |
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language |
English |
topic |
Physiology (medical) Cardiology and Cardiovascular Medicine |
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Physiology (medical) Cardiology and Cardiovascular Medicine Nölker, Georg Molatta, Stephan Koch, Frauke Hossain, M. Sajid Bullert, Kevin Horstkotte, Dieter Gutleben, Klaus-Jürgen Abstract 15020: Ablation of Paroxysmal Atrial Fibrillation Applying an Improved Cryoballoon: is Reduction of Freezing Time Possible? |
topic_facet |
Physiology (medical) Cardiology and Cardiovascular Medicine |
description |
Introduction: Cryoballoon (CB) ablation has been adopted by many centers worldwide for treatment of atrial fibrillation (AF). An improved version of the CB providing homogeneous cooling at its total frontal side has been introduced (Arctic Front Advance™, Medtronic). Hypothesis: We aimed to evaluate whether reduction of cooling times in application of this advanced CB is possible without affecting the outcome. Methods: A total of 94 patients (pts) (44 male, 58 ± 13 years) suffering from paroxysmal AF were prospectively assigned to CB pulmonary vein isolation choosing either 2 x 4 minutes (group 1) or 2 x 3 minutes (group 2) of freezing per vein. In case of pull-down maneuvers 120 s application time at the superior edge was followed by additional freezing of 3 or 4 minutes respectively after pull-down. Follow-up at 3, 6 months completed in all pts. included a clinical visit and a 7-day Holter or a readout of an implanted device for evaluation of AF burden. Results: Groups were well balanced in terms of left atrial size, left ventricular function, concomitant diseases and duration of AF. Total procedure time was reduced from 116±28 to 109±23 minutes (p=n.s.). Freezing time per pt decreased from 38.7±8.2 to 31.2±6.9 minutes (p<0.00001). Fluoroscopy time was similar between the groups (10.3±5.8; 12.1±5.5 min.; p=n.s.). During a follow-up of 6.4±1.8 months recurrence of AF was observed in 11 % of pts in group 1 versus 29 % of pts in group 2 (p=0.04). No major complications occurred in either group. Conclusions: Based on our preliminary findings, reduction of freezing time in CB ablation applying the improved version of the CB catheter seems to increase recurrence of AF. Therefore, it might be advisable to maintain longer freezing times. A prolonged follow-up will be available and presented at the meeting. |
format |
Article in Journal/Newspaper |
author |
Nölker, Georg Molatta, Stephan Koch, Frauke Hossain, M. Sajid Bullert, Kevin Horstkotte, Dieter Gutleben, Klaus-Jürgen |
author_facet |
Nölker, Georg Molatta, Stephan Koch, Frauke Hossain, M. Sajid Bullert, Kevin Horstkotte, Dieter Gutleben, Klaus-Jürgen |
author_sort |
Nölker, Georg |
title |
Abstract 15020: Ablation of Paroxysmal Atrial Fibrillation Applying an Improved Cryoballoon: is Reduction of Freezing Time Possible? |
title_short |
Abstract 15020: Ablation of Paroxysmal Atrial Fibrillation Applying an Improved Cryoballoon: is Reduction of Freezing Time Possible? |
title_full |
Abstract 15020: Ablation of Paroxysmal Atrial Fibrillation Applying an Improved Cryoballoon: is Reduction of Freezing Time Possible? |
title_fullStr |
Abstract 15020: Ablation of Paroxysmal Atrial Fibrillation Applying an Improved Cryoballoon: is Reduction of Freezing Time Possible? |
title_full_unstemmed |
Abstract 15020: Ablation of Paroxysmal Atrial Fibrillation Applying an Improved Cryoballoon: is Reduction of Freezing Time Possible? |
title_sort |
abstract 15020: ablation of paroxysmal atrial fibrillation applying an improved cryoballoon: is reduction of freezing time possible? |
publisher |
Ovid Technologies (Wolters Kluwer Health) |
publishDate |
2014 |
url |
http://dx.doi.org/10.1161/circ.130.suppl_2.15020 |
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Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Circulation volume 130, issue suppl_2 ISSN 0009-7322 1524-4539 |
op_doi |
https://doi.org/10.1161/circ.130.suppl_2.15020 |
container_title |
Circulation |
container_volume |
130 |
container_issue |
suppl_2 |
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1766347245411631104 |