Volume 34, Issue 4 pp. 422-430

Different Image Integration Modalities to Guide AF Ablation: Impact on Procedural and Fluoroscopy Times

CLAUDIO PRATOLA M.D.

CLAUDIO PRATOLA M.D.

Chair of Cardiology, S. Anna University Hospital, Ferrara, Italy

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ELISA BALDO M.D.

ELISA BALDO M.D.

Cardiology Department, Delta Hospital, Lagosanto (FE), Italy

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PAOLO ARTALE M.D.

PAOLO ARTALE M.D.

Chair of Cardiology, S. Anna University Hospital, Ferrara, Italy

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LINA MARCANTONI M.D.

LINA MARCANTONI M.D.

Chair of Cardiology, S. Anna University Hospital, Ferrara, Italy

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TIZIANO TOSELLI M.D.

TIZIANO TOSELLI M.D.

Chair of Cardiology, S. Anna University Hospital, Ferrara, Italy

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GIANFRANCO PERCOCO M.D.

GIANFRANCO PERCOCO M.D.

Cardiology Department, Delta Hospital, Lagosanto (FE), Italy

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BIAGIO SASSONE M.D.

BIAGIO SASSONE M.D.

Cardiology Department, Bentivoglio Hospital, Bentivoglio (BO), Italy

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ROBERTO FERRARI M.D., Ph.D.

ROBERTO FERRARI M.D., Ph.D.

Chair of Cardiology, S. Anna University Hospital, Ferrara, Italy

Cardiovascular Research Centre, Salvatore Maugeri Foundation, Gussago (BS), Italy

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First published: 05 January 2011
Citations: 23
Address for reprints: Claudio Pratola, M.D., Chair of Cardiology, S. Anna University Hospital, Corso Giovecca 203, 44100 Ferrara, Italy. Fax: 39 0532 236593; e-mail: [email protected]

Abstract

Background: Different image integration modalities are available for atrial fibrillation (AF) ablation, but their impact on procedural and fluoroscopy times has not been evaluated yet.

Methods: Sixty patients (mean age 52.2 ± 12.0 years, 48.3% men, 75% paroxysmal AF) undergoing pulmonary vein (PV) encircling with PV disconnection for symptomatic drug-refractory AF were randomized to ablation with CARTO electroanatomical mapping (Biosense Webster, Diamond Bar, CA, USA) integrated with: (1) preprocedural magnetic resonance imaging (MRI; Group 1); (2) intracardiac echocardiography (ICE; Group 2); (3) preprocedural MRI and ICE (Group 3).

Results: PV disconnection was achieved in all patients. Total procedural time (Group 1: 124.7 ± 47.0; Group 2: 112.5 ± 30.4; Group 3: 108.6 ± 34.7 minutes) and total ablation time were similar between groups (P = ns). MRI integration alone required a higher fluoroscopy time (23.8 ± 6.9 in Group 1 vs 11.0 ± 2.3 and 13.9 ± 4.2 minutes in Groups 2 and 3, respectively; P < 0.005) and a longer time spent in the left atrium (109.0 ± 43.5 in Group 1 vs 78.2 ± 29.7 and 74.8 ± 34.3 minutes in Groups 2 and 3, respectively; P = 0.03) in comparison to ICE integration. Addition of MRI to ICE integration showed a tendency for a higher fluoroscopy time in comparison to ICE integration alone (P = 0.06). At a mean follow-up of 9.1 ± 2.2 months, there were no significant differences in AF recurrences among the groups (P = ns).

Conclusion: ICE image integration significantly reduces the fluoroscopy time and the time spent in the left atrium in comparison to MRI integration alone. Addition of MRI to ICE integration does not reduce total procedural time and seems to lead to higher fluoroscopy time in comparison to ICE integration alone. (PACE 2011; 34:422–430)

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