In vivo preliminary test of a new biparietal bidirectional bipolar radiofrequency magnetic coupling system.
Background: To test in vivo a new design prototype for radio frequency (RF) ablation. Methods: A prototype based on a concept of endo‐epicardial biparietal bipolar RF ablation with the atrial tissue interposed and consisting of two specular endocardial‐epicardial catheters was tested in four pigs (8...
| Publicado en: | Pacing & Clinical Electrophysiology Vol. 44; no. 9; pp. 1585 - 1593 |
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| Autores principales: | , , , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Wiley-Blackwell
Sep2021
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=152442662&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 152442662 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01478389 4F8 jtl: Pacing & Clinical Electrophysiology issn: 01478389 maglogo: Y pubinfo: dt: Sep2021 vid: 44 iid: 9 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 152442662 151689195 152442662 152442662 10.1111/pace.14320 152442662 ppf: 1585 ppct: 8 formats: fmt: – @attributes: type: T – @attributes: type: C – @attributes: type: P tig: atl: In vivo preliminary test of a new biparietal bidirectional bipolar radiofrequency magnetic coupling system. aug: au: Matteucci, Francesco La Meir, Mark Maesen, Bart Chierchia, Gian‐Battista De Asmundis, Carlo Gelsomino, Sandro affil: Maastricht University, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands sug: subj: Radiofrequency Ablation Catheter Ablation Endocardium Animal Studies Swine In Vivo Studies Heart Atrium, Left Descriptive Statistics Atrial Fibrillation Surgery Treatment Outcomes ab: Background: To test in vivo a new design prototype for radio frequency (RF) ablation. Methods: A prototype based on a concept of endo‐epicardial biparietal bipolar RF ablation with the atrial tissue interposed and consisting of two specular endocardial‐epicardial catheters was tested in four pigs (80±5 kg). The endocardial catheter was introduced into the left atrium through the left atrial appendage on the beating heart. The epicardial counterpart was placed manually on the atrial epicardial surface. The coupling of the two catheters was achieved using a neodymium magnet around the gold plate electrode, and RF was applied to the interposed tissue. The hearts were excised, and the lesions were examined using morphometric evaluation. Results: The RF application resulted in transmural lesions in all of the four animals tested. In these animals the maximum endocardial width (Wendo) was 6.34 ± 0.25, 6.54 ± 0.33, 6.36 ± 0.57, and 6.49 ± 0.96 mm. The pericardial width (Wepi) was similar: 6.37 ± 0.47, 6.58 ± 0.32, 6.35 ± 0.56 and 6.53 ± 0.94 mm. The lesion area was 924.78, 949.25, 944.25, and 926.05 mm2, and the lesion volume was 92.47, 94.92, 94.42, and 92.60 mm3, respectively. Conclusions: The idea of an endocardial‐epicardial bidirectional biparietal bipolar radiofrequency tool such that the atrial tissue is fully interposed between the two RF poles might be promising for future clinical applications. Further research is warranted. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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