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Right arrow Electrophysiology - arrhythmias

Ann Thorac Surg 2004;77:1460-1462
© 2004 The Society of Thoracic Surgeons

Case report

A new cryoprobe for intraoperative ablation of atrial fibrillation

Nicolas Doll, MDa*, Ralf Meyer, PhDb, Thomas Walther, MD, PhDa, Friedrich W. Mohr, MD, PhDa

a Department of Cardiac Surgery, Heart Center, University of Leipzig, Leipzig, Germany
b CryoCath Technologies Inc, Quebec, Canada

Accepted for publication May 8, 2003.

* Address reprint requests to Dr Doll, Department of Cardiac Surgery, Heart Center, University of Leipzig, Strümpellstrasse 39, 04289 Leipzig, Germany
e-mail: dolln{at}medizin.uni-leipzig.de

We describe the use of a new argon cryoprobe (SurgiFrost) for isolated endocardial surgical ablation. A right lateral minithoracotomy and femoro-femoral cardiopulmonary bypass were applied. The basic mechanism of cryoablation is to remove heat from the targeted arrhythmogenic tissue followed by electrical isolation. In this first case of isolated treatment of atrial fibrillation using the new flexible SurgiFrost cryocatheter, we were able to perform pulmonary vein isolation reaching temperatures as low as −144°C. The patient was discharged in sinus rhythm. This new argon cryoprobe represents an encouraging technology for the isolated endocardial as well as concomitant treatment of atrial fibrillation.




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