Comparison of two radiofrequency-based hemostatic devices
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...
| Authors: | ; ; ; ; ; ; ; |
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| Format: | Article |
| Publication date: | 2022 |
| Country: | España |
| Institution: | Universitat Autònoma de Barcelona |
| Repository: | Dipòsit Digital de Documents de la UAB |
| Language: | English |
| OAI Identifier: | oai:ddd.uab.cat:306497 |
| Online Access: | https://ddd.uab.cat/record/306497 https://dx.doi.org/urn:doi:10.1080/02656736.2022.2140840 |
| Access Level: | Open access |
| Keyword: | Animals Catheter ablation Cooled electrode Hemostatic device Hemostatics Liver surgery Radiofrequency Thermal ablation Saline-linked |
| _version_ | 1878738168113528834 |
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| author | Moll, Xavier|||0000-0002-2992-9361 |
| author2 | Fondevila, Dolors|||0000-0001-7443-0175 García Arnas, Félix|||0000-0001-6651-3173 Burdío, Fernando|||0000-0003-3038-0086 Trujillo, Macarena Irastorza, Ramiro M. Berjano, Enrique|||0000-0002-3247-2665 Andaluz Martínez, Anna|||0000-0001-8097-8110 |
| author2_role | author author author author author author author |
| author_browse | Andaluz Martínez, Anna|||0000-0001-8097-8110 Berjano, Enrique|||0000-0002-3247-2665 Burdío, Fernando|||0000-0003-3038-0086 Fondevila, Dolors|||0000-0001-7443-0175 García Arnas, Félix|||0000-0001-6651-3173 Irastorza, Ramiro M. Moll, Xavier|||0000-0002-2992-9361 Trujillo, Macarena |
| author_facet | Moll, Xavier|||0000-0002-2992-9361 Fondevila, Dolors|||0000-0001-7443-0175 García Arnas, Félix|||0000-0001-6651-3173 Burdío, Fernando|||0000-0003-3038-0086 Trujillo, Macarena Irastorza, Ramiro M. Berjano, Enrique|||0000-0002-3247-2665 Andaluz Martínez, Anna|||0000-0001-8097-8110 |
| author_role | author |
| collection | Dipòsit Digital de Documents de la UAB |
| description | 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. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_aaa2cb9a5fc7fbf648d8299b2b47eaa6 |
| institution | Universitat Autònoma de Barcelona |
| instname_str | Universitat Autònoma de Barcelona |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:ddd.uab.cat:306497 |
| publishDate | 2022 |
| publishDateSort | 2022 |
| reponame_str | Dipòsit Digital de Documents de la UAB |
| spelling | Comparison of two radiofrequency-based hemostatic devices saline-linked bipolar vs. cooled-electrode monopolar Moll, Xavier|||0000-0002-2992-9361 Fondevila, Dolors|||0000-0001-7443-0175 García Arnas, Félix|||0000-0001-6651-3173 Burdío, Fernando|||0000-0003-3038-0086 Trujillo, Macarena Irastorza, Ramiro M. Berjano, Enrique|||0000-0002-3247-2665 Andaluz Martínez, Anna|||0000-0001-8097-8110 Animals Catheter ablation Cooled electrode Hemostatic device Hemostatics Liver surgery Radiofrequency Thermal ablation Saline-linked 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. https://ddd.uab.cat/record/306497 https://dx.doi.org/urn:doi:10.1080/02656736.2022.2140840 |
| spellingShingle | Comparison of two radiofrequency-based hemostatic devices Moll, Xavier|||0000-0002-2992-9361 Animals Catheter ablation Cooled electrode Hemostatic device Hemostatics Liver surgery Radiofrequency Thermal ablation Saline-linked |
| title | Comparison of two radiofrequency-based hemostatic devices |
| title_full | Comparison of two radiofrequency-based hemostatic devices |
| title_fullStr | Comparison of two radiofrequency-based hemostatic devices |
| title_full_unstemmed | Comparison of two radiofrequency-based hemostatic devices |
| title_short | Comparison of two radiofrequency-based hemostatic devices |
| title_sort | Comparison of two radiofrequency-based hemostatic devices |
| topic | Animals Catheter ablation Cooled electrode Hemostatic device Hemostatics Liver surgery Radiofrequency Thermal ablation Saline-linked |
| topic_facet | Animals Catheter ablation Cooled electrode Hemostatic device Hemostatics Liver surgery Radiofrequency Thermal ablation Saline-linked |
| url | https://ddd.uab.cat/record/306497 https://dx.doi.org/urn:doi:10.1080/02656736.2022.2140840 |