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Thorac Cardiovasc Surg 1999; 47: 379-384
DOI: 10.1055/s-2007-1013205
© Georg Thieme Verlag Stuttgart · New York

Intraoperative Microwave Ablation for Curative Treatment of Atrial Fibrillation in Open Heart Surgery - The MICRO-STAF and MICRO-PASS Pilot Trial

M. Knaut1 , S. G. Spitzer2 , L. Karolyi2 , H.-H. Ebert2 , P. Richter2 , S. M. Tugtekin1 , S. Schüler1
  • 1Cardiovascular Institute, University Dresden, Germany
  • 2Institute of Cardiovascular Research, Dresden, Germany
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Publication History

Publication Date:
19 March 2008 (online)

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Abstract

Concomitant microwave ablation for curative treatment of atrial fibrillation (AF) was performed in 18 patients with history of chronic atrial fibrillation and indication for open heart surgery, 11 patients with mitral valve replacement and 7 patients with coronary artery bypass grafting. There were no perioperative complications. During the postoperative period most of the patients had intermittent AF, they received low dose Sotalol therapy and electric cardio-versions. Up to now seven patients have reached follow-up day 90. One patient has persistent AF. Two patients had typical atrial flutter that was electrically converted to sinus rhythm (SR), isthmus ablation is planned. The other four patients have SR, one patient without cardioversions. These four patients show recovered atrial function with observed A-wave for transmitral flow. Under visual guidance the continuous atrial lesion lines could be induced effectively and safely by the intraoperative device Lynx.

Key words

Atrial fibrillation - Intraoperative microwave ablation

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