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This research was partially funded by a grant from Cardiofocus, and also partially supported by Fondo de Investigaciones Sanitarias-Instituto de SaludCarlos III (PI13/01747 and PI16/00435); Agencia de gestiod AjutsUniversitaris I de Recerca (AGAUR) Exp: 2014_SGR_471; CERCA programme/Generalitat de Catalunya; European Regional Development Fund (ERDF, European Union, A Way of Making Europe), the European Union's Horizon 2020 research and innovation programme under grant agreement No 633196 (CATCHME), a grant by LaMARATO-TV3(Id. 20152730).

Analysis of institutional authors

Benito EmAuthorAlarcon FAuthorPrat-González SAuthorPerea RjAuthorBorras RAuthorArbelo EAuthorTolosana JmAuthorBrugada JAuthorBerruezo AAuthorMont LCorresponding Author

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May 7, 2018
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Post-procedural LGE-CMR comparison of laser and radiofrequency ablation lesions after pulmonary vein isolation.

Publicated to:Journal Of Cardiovascular Electrophysiology. 29 (8): 1065-1072 - 2018-08-01 29(8), DOI: 10.1111/jce.13616

Authors: Figueras i Ventura, Rosa M; Margulescu, Andrei D; Benito, Eva M; Alarcon, Francisco; Enomoto, Norihiro; Prat-Gonzalez, Susanna; Perea, Rosario J; Borras, Roger; Chipa, Fredy; Arbelo, Elena; Tolosana, Jose M; Brugada, Josep; Berruezo, Antonio; Mont, Lluis

Affiliations

CIBERCV Ctr Invest Biomed Red Cardiovasc, Barcelona, Catalonia, Spain - Author
Galgo Med, Barcelona, Catalonia, Spain       - Author
Hosp Clin Barcelona, Cardiovasc Clin Inst, Arrhythmia Sect, C Villarroel 170, Barcelona 08036, Spain.      University of Barcelona    Hospital Clinic de Barcelona - Author
Univ Barcelona, IDIBAPS Inst Invest Biomed August Pi i Sunyer, Cardiovasc Clin Inst, UFA,Hosp Clin, Barcelona, Catalonia, Spain      IDIBAPS    University of Barcelona    Hospital Clinic de Barcelona       - Author
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Abstract

The purpose of this study was to compare the anatomical characteristics of scar formation achieved by visual-guided laser balloon (Laser) and radiofrequency (RF) pulmonary vein isolation (PVI), using late-gadolinium-enhanced cardiac magnetic resonance imaging (LGE-CMR).We included 17 patients with paroxysmal or early persistent drug resistant AF who underwent Laser ablation; 2 were excluded due to procedure-related complications. The sample was matched with a historical group of 15 patients who underwent PVI using RF. LGE-CMR sequences were acquired before and 3 months post-PVI. Ablation gaps were defined as pulmonary vein (PV) perimeter sections showing no gadolinium enhancement. The number of ablation gaps was lower in Laser versus RF ablations (median 7 vs. 14, P  =  0.015). Complete anatomical PVI (circumferential scar around PV, without gaps) was more frequently achieved with Laser than with RF (39% vs. 19% of PVs, P  =  0.025). Fewer gaps were present at the superior and anterior left PV and posterior right PV antral regions in the Laser group, compared to RF. Scar extension into the PVs was similar in both groups, although RF produced more extensive ablation scar toward the LA body. AF recurrences at 1 year were similar in both groups (Laser 36% vs. RF 27%, P  =  1.00).Compared to RF, Laser ablation achieved more complete anatomical PVI, with less LA scar extension. However, AF recurrence appears to be similar after Laser compared to RF ablation. Further studies are needed to assess whether the anatomical advantages of Laser ablation translate into clinical benefit in patients with AF.© 2018 Wiley Periodicals, Inc.

Keywords

atrial fibrillationballoon ablationcardiac magnetic resonance imagingcathetercatheter ablationconductioncontact forcecryoballoonlaserlate gadolinium enhancementmagnetic-resonancemulticenterpulmonary vein isolationscarAtrial fibrillationBalloon ablationCardiac magnetic resonance imagingCatheterCatheter ablationCohort studiesConductionContact forceCryoballoonExperienceFemaleFibrosisFollow-up studiesGadoliniumHumansLaserLaser therapyLate gadolinium enhancementMagnetic resonance imaging, cineMagnetic-resonanceMaleMiddle agedMulticenterPersistent atrial-fibrillationPostoperative complicationsPulmonary vein isolationPulmonary veinsRadiofrequency ablationScar

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Journal Of Cardiovascular Electrophysiology due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2018, it was in position , thus managing to position itself as a Q1 (Primer Cuartil), in the category Cardiology and Cardiovascular Medicine.

From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 4.77, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Nov 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-11-06, the following number of citations:

  • WoS: 14
  • Scopus: 9
  • Europe PMC: 8

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-11-06:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 38.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 38 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 1.85.
  • The number of mentions on the social network X (formerly Twitter): 2 (Altmetric).

Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Figueras I Ventura RM) and Last Author (Mont Girbau, Josep Lluís).

the author responsible for correspondence tasks has been Mont Girbau, Josep Lluís.