Comparison of two radiofrequency-based hemostatic devices: Saline-linked bipolar vs. cooled-electrode monopolar

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• dc.contributor.author Moll, Xavier
• dc.contributor.author Fondevila, Dolors
• dc.contributor.author García Arnas, Félix
• dc.contributor.author Burdío Pinilla, Fernando
• dc.contributor.author Trujillo Guillén, Macarena
• dc.contributor.author Irastorza, Ramiro M.
• dc.contributor.author Berjano, Enrique J.
• dc.contributor.author Andaluz, Anna
• dc.date.accessioned 2023-04-12T06:10:42Z
• dc.date.available 2023-04-12T06:10:42Z
• dc.date.issued 2022
• dc.description.abstract Purpose: To characterize the coagulation zones created by two radiofrequency (RF)-based hemostatic devices: one comprised an internally cooled monopolar electrode and the other comprised externally irrigated bipolar electrodes (saline-linked). Materials and methods: RF-induced coagulation zones were created on ex vivo and in vivo porcine models. Computer modeling was used to determine the RF power distribution in the saline-linked device. Results: Both external (irrigation) and internal cooling effectively prevented tissue sticking. Under ex vivo conditions in 'painting' application mode, coagulation depth increased with the applied power: 2.8 - 5.6 mm with the 3-mm monopolar electrode, 1.6 - 6.0 mm with the 5-mm monopolar electrode and 0.6 - 3.2 mm with the saline-linked bipolar electrodes. Under in vivo conditions and using spot applications, the 3-mm monopolar electrode created coagulation zones of similar depth to the saline-linked bipolar electrodes (around 3 mm), while the 5-mm monopolar electrode created deeper coagulations (4.5 - 6 mm) with less incidence of popping. The presence of saline around the saline-linked bipolar electrodes meant that a significant percentage of RF power (50 - 80%) was dissipated by heating in the saline layer. Coagulation zones were histologically similar for all the tested devices. Conclusions: Both external (irrigation) and internal cooling in hemostatic RF devices effectively prevent tissue sticking and create similar coagulation zones from a histological point of view. Overall, saline-linked bipolar electrodes tend to create shallower coagulations than those created with an internally cooled monopolar electrode.
• dc.description.sponsorship Spanish Ministerio de Ciencia, Innovación y Universidades MCIN/AEI/10.13039/501100011033 [Grants RTI2018-094357-B-C21 and RTI2018-094357-B-C22], “Agencia Nacional de Promoción Científica y Tecnológica de Argentina” [PICT-2020-SERIEA-00457], Dr. Irastorza was the recipient of a scholarship from the Programa de Becas Externas Postdoctorales para Jóvenes Investigadores del CONICET (Argentina).
• dc.format.mimetype application/pdf
• dc.identifier.citation Moll X, Fondevila D, García-Arnas F, Burdio F, Trujillo M, Irastorza RM, Berjano E, Andaluz A. Comparison of two radiofrequency-based hemostatic devices: Saline-linked bipolar vs. cooled-electrode monopolar. Int J Hyperthermia. 2022;39(1):1397-407. DOI: 10.1080/02656736.2022.2140840
• dc.identifier.doi http://dx.doi.org/10.1080/02656736.2022.2140840
• dc.identifier.issn 0265-6736
• dc.identifier.uri http://hdl.handle.net/10230/56446
• dc.language.iso eng
• dc.publisher Taylor & Francis
• dc.relation.ispartof Int J Hyperthermia. 2022;39(1):1397-407
• dc.relation.projectID info:eu-repo/grantAgreement/ES/2PE/RTI2018-094357-B-C21
• dc.relation.projectID info:eu-repo/grantAgreement/ES/2PE/RTI2018-094357-B-C22
• dc.rights © 2022 The Author(s). Published with license by Taylor & Francis Group, LLC. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
• dc.rights.accessRights info:eu-repo/semantics/openAccess
• dc.rights.uri http://creativecommons.org/licenses/by/4.0/
• dc.subject.keyword Cooled electrode
• dc.subject.keyword Hemostatic device
• dc.subject.keyword Radiofrequency
• dc.subject.keyword Saline-linked
• dc.subject.keyword Thermal ablation
• dc.title Comparison of two radiofrequency-based hemostatic devices: Saline-linked bipolar vs. cooled-electrode monopolar
• dc.type info:eu-repo/semantics/article
• dc.type.version info:eu-repo/semantics/publishedVersion