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Radiofrequency cardiac ablation with catheters placed on opposing sides of the ventricular wall: Computer modelling comparing bipolar and unipolar modes

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Radiofrequency cardiac ablation with catheters placed on opposing sides of the ventricular wall: Computer modelling comparing bipolar and unipolar modes

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dc.contributor.author González Suárez, Ana es_ES
dc.contributor.author Trujillo Guillen, Macarena es_ES
dc.contributor.author Koruth, Jacob es_ES
dc.contributor.author d'Avila, Andre es_ES
dc.contributor.author Berjano, Enrique es_ES
dc.date.accessioned 2015-01-07T18:22:04Z
dc.date.available 2015-01-07T18:22:04Z
dc.date.issued 2014-09
dc.identifier.issn 0265-6736
dc.identifier.uri http://hdl.handle.net/10251/45852
dc.description.abstract Purpose: The aim of this study was to compare the efficacy of bipolar (BM) vs. unipolar (UM) mode of radiofrequency ablation (RFA) in terms of creating transmural lesions across the interventricular septum (IVS) and ventricular free wall (VFW). Materials and methods: We built computational models to study the temperature distributions and lesion dimensions created by BM and UM on IVS and VFW during RFA. Two different UM types were considered: sequential (SeUM) and simultaneous (SiUM). The effect of ventricular wall thickness, catheter misalignment, epicardial fat, and presence of air in the epicardial space were also studied. Results: Regarding IVS ablation, BM created transmural and symmetrical lesions for wall thicknesses up to 15 mm. SeUM and SiUM were not able to create transmural lesions with IVS thicknesses >= 12.5 and 15 mm, respectively. Lesions were asymmetrical only with SeUM. For VFW ablation, BM also created transmural lesions for wall thicknesses up to 15 mm. However, with SeUM and SiUM transmurality was obtained for VFW thicknesses <= 7.5 and 12.5 mm, respectively. With the three modes, VFW lesions were always asymmetrical. In the scenario with air or a fat tissue layer on the epicardial side, only SiUM was capable of creating transmural lesions. Overall, BM was superior to UM in IVS and VFW ablation when the catheters were not aligned. Conclusions: Our findings suggest that BM is more effective than UM in achieving transmurality across both ventricular sites, except in the situation of the epicardial catheter tip surrounded by air or placed over a fat tissue layer. es_ES
dc.description.sponsorship This work received financial support from the Spanish 'Plan Nacional de I+D+I del Ministerio de Ciencia e Innovacion' (TEC2011-27133-C02-01), and from the Universitat Politecnica de Valencia (PAID-06-11 Ref. 1988). A. Gonzalez-Suarez is the recipient of a Grant VaLi+D (ACIF/2011/194) from the Generalitat Valenciana, Spain. The authors alone are responsible for the content and writing of the paper. en_EN
dc.language Inglés es_ES
dc.publisher Informa Healthcare es_ES
dc.relation.ispartof International Journal of Hyperthermia es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Bipolar ablation es_ES
dc.subject Interventricular septum es_ES
dc.subject Radiofrequency ablation es_ES
dc.subject Unipolar ablation es_ES
dc.subject Ventricular ablation es_ES
dc.subject Ventricular free wall es_ES
dc.subject.classification MATEMATICA APLICADA es_ES
dc.subject.classification TECNOLOGIA ELECTRONICA es_ES
dc.title Radiofrequency cardiac ablation with catheters placed on opposing sides of the ventricular wall: Computer modelling comparing bipolar and unipolar modes es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.3109/02656736.2014.949878
dc.relation.projectID info:eu-repo/grantAgreement/MICINN//TEC2011-27133-C02-01/ES/MODELADO TEORICO Y EXPERIMENTACION PARA TECNICAS ABLATIVAS BASADAS EN ENERGIAS/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/UPV//PAID-06-11-1988/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/GVA//ACIF%2F2011%2F194/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Matemática Aplicada - Departament de Matemàtica Aplicada es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Electrónica - Departament d'Enginyeria Electrònica es_ES
dc.description.bibliographicCitation González Suárez, A.; Trujillo Guillen, M.; Koruth, J.; D'avila, A.; Berjano, E. (2014). Radiofrequency cardiac ablation with catheters placed on opposing sides of the ventricular wall: Computer modelling comparing bipolar and unipolar modes. International Journal of Hyperthermia. 30(6):372-384. https://doi.org/10.3109/02656736.2014.949878 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.3109/02656736.2014.949878 es_ES
dc.description.upvformatpinicio 372 es_ES
dc.description.upvformatpfin 384 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 30 es_ES
dc.description.issue 6 es_ES
dc.relation.senia 271598
dc.contributor.funder Ministerio de Ciencia e Innovación es_ES
dc.contributor.funder Universitat Politècnica de València es_ES
dc.contributor.funder Generalitat Valenciana es_ES
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