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Title: New ablation techniques for atrial fibrillation and the minimally invasive cryo-maze procedure in patients with lone atrial fibrillation.
Austin Authors: Moten, Simon C M;Rodriguez, Evelio;Cook, Richard C;Nifong, L Wiley;Chitwood, W Randolph
Affiliation: Victorian Heart Center, Epworth Hospital and Austin Health, Victoria, Australia
Issue Date: 3-Jul-2007
Publication information: Heart, Lung & Circulation 2007; 16 Suppl 3(): S88-93
Abstract: Atrial fibrillation (AF) is associated with significant morbidity and mortality. Medical management is often palliative but new ablation techniques have enabled curative approaches. Catheter-based ablation has limited success, whilst surgical approaches are widely applicable with favourable results. The minimally invasive Cryo-Maze (MICM) replicates the lesions of the Cox-Maze procedure using cryotherapy. We present our retrospective review of all Cryo-Maze procedures performed at East Carolina University, from October 2003 to January 2006, with analysis of all MICM's for lone AF, via a small right inframammary incision. A total of 41 patients (29 male, 12 female, age 61.6+/-9.7 years) with lone AF underwent an MICM as a primary operation. There were no deaths or early or late strokes. At discharge 36 patients (87.8%) were in sinus. At six weeks, this ratio had increased to 90.2% (37/41). The rate of SR continued to improve and for those out three months, the rate increased to 92.7% (38/41). At six months, 87.2% (34/39) were in SR. SR was seen in 20/23 patients with follow-up beyond one year (87.0%). In conclusion, surgical ablation techniques that replicate the Cox-Maze procedure are associated with high rates of sinus rhythm beyond one year, with wide application. AF is a curable condition, using a combination of catheter-based and surgical approaches. Newer surgical ablation devices allow minimally invasive approaches.
Gov't Doc #: 17611154
DOI: 10.1016/j.hlc.2007.05.005
Type: Journal Article
Subjects: Atrial
Catheter Ablation.instrumentation.methods
Middle Aged
Minimally Invasive Surgical Procedures
North Carolina
Pulmonary Veins
Retrospective Studies
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