Efficacy of a novel bipolar radiofrequency ablation device on the beating heart for atrial fibrillation ablation: a long-term porcine study.

The Journal of Thoracic and Cardiovascular Surgery
Rochus K VoellerRalph J Damiano

Abstract

Over recent years, a variety of energy sources have been used to replace the traditional incisions of the Cox maze procedure for the surgical treatment of atrial fibrillation. This study evaluated the safety and efficacy of a new bipolar radiofrequency ablation device for atrial ablation in a long-term porcine model. Six pigs underwent a Cox maze IV procedure on a beating heart off cardiopulmonary bypass using the AtriCure Isolator II bipolar ablation device (AtriCure, Inc, Cincinnati, Ohio). In addition, 6 pigs underwent median sternotomy and pericardiotomy alone to serve as a control group. All animals were allowed to survive for 30 days. Each pig underwent induction of atrial fibrillation and was then humanely killed to remove the heart en bloc for histologic assessment. Magnetic resonance imaging scans were also obtained preoperatively and postoperatively to assess atrial and ventricular function, pulmonary vein anatomy, valve function, and coronary artery patency. All animals survived the operation. Electrical isolation of the left atrial appendage and the pulmonary veins was documented by pacing acutely and at 30 days in all animals. No animal that underwent the Cox maze IV procedure was able to be induced into atrial fib...Continue Reading

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Citations

Jan 1, 2011·Innovations : Technology and Techniques in Cardiothoracic and Vascular Surgery·Rochus K VoellerRalph J Damiano
Oct 23, 2013·Innovations : Technology and Techniques in Cardiothoracic and Vascular Surgery·Lindsey L SaintRalph J Damiano
Feb 4, 2014·The Annals of Thoracic Surgery·Yoshiyuki WatanabeRalph J Damiano
Aug 7, 2013·The Annals of Thoracic Surgery·Shoichi OkadaHersh S Maniar
Sep 22, 2015·The Annals of Thoracic Surgery·Vigneshwar KasirajanKenneth A Ellenbogen
Jul 17, 2012·The Journal of Thoracic and Cardiovascular Surgery·Yang YuCheng-xiong Gu
Sep 15, 2012·International Journal of Hyperthermia : the Official Journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group·Ana González-SuárezEnrique Berjano
Sep 22, 2012·The Journal of Thoracic and Cardiovascular Surgery·Anson M LeeRalph J Damiano
Apr 5, 2014·Chinese Medical Sciences Journal = Chung-kuo I Hsüeh K'o Hsüeh Tsa Chih·Wei-zhao HuangHai-ming Jiang
Sep 3, 2013·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Spencer J MelbyRalph J Damiano
Aug 25, 2020·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Francesco MatteucciSandro Gelsomino
Jan 8, 2021·Innovations : Technology and Techniques in Cardiothoracic and Vascular Surgery·Francesco MatteucciSandro Gelsomino
Feb 22, 2021·Interactive Cardiovascular and Thoracic Surgery·Francesco MatteucciSandro Gelsomino

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