Surgical ablation of atrial fibrillation with off-pump, epicardial, high-intensity focused ultrasound: Results of a multicenter trial Jean Ninet, MD,

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Presentation transcript:

Surgical ablation of atrial fibrillation with off-pump, epicardial, high-intensity focused ultrasound: Results of a multicenter trial Jean Ninet, MD, Xavier Roques, MD, Rainald Seitelberger, MD, Claude Deville, MD, Jose Luis Pomar, MD, Jacques Robin, MD, PhD, Olivier Jegaden, MD, Francis Wellens, MD, Ernst Wolner, MD, Catherine Vedrinne, MD, PhD, Roman Gottardi, MD, Javier Orrit, MD, Marc-Alain Billes, MD, Drew A. Hoffmann, PhD, James L. Cox, MD, Gerard L. Champsaur, MD The Journal of Thoracic and Cardiovascular Surgery Volume 130, Issue 3, Pages 803.e1-803.e8 (September 2005) DOI: 10.1016/j.jtcvs.2005.05.014 Copyright © 2005 The American Association for Thoracic Surgery Terms and Conditions

Figure 1 Histology section of bovine left atrial wall after acute ablation (Trichrome Masson staining). A fully transmural lesion (in blue) from the endocardium to the epicardium through a 10- to 12-mm wall total thickness, including 7 to 9 mm of fat tissue, is shown. The Journal of Thoracic and Cardiovascular Surgery 2005 130, 803.e1-803.e8DOI: (10.1016/j.jtcvs.2005.05.014) Copyright © 2005 The American Association for Thoracic Surgery Terms and Conditions

Figure E1 Picture of the UltraCinch, which is an array of 8 to 14 ultrasonic transducers with 2 color-coded sutures at each end of the device used to secure it into position around the left atrial wall with a pair of tourniquets. The Journal of Thoracic and Cardiovascular Surgery 2005 130, 803.e1-803.e8DOI: (10.1016/j.jtcvs.2005.05.014) Copyright © 2005 The American Association for Thoracic Surgery Terms and Conditions

Figure E2 Focused ultrasound energy originating from the concave transducer and visualized through a Schlerein effect (fluid-phase laser illumination to visualize the ultrasonic beam). The beam converges at the focal distance and dissipates beyond that point. The focal distance is fixed and determined only by the radius of the curvature of the transducer. The Journal of Thoracic and Cardiovascular Surgery 2005 130, 803.e1-803.e8DOI: (10.1016/j.jtcvs.2005.05.014) Copyright © 2005 The American Association for Thoracic Surgery Terms and Conditions