Comparison of standard Maze III and radiofrequency Maze operations for treatment of atrial fibrillation
| Autor: | Roger C. Millar, Stephen E. Clayson, Bruce B. Reid, John R. Doty, Donald B. Doty, Greg Snow, Marlene Mensah, Emily Righter, Kent W. Jones, Jean H. Flores |
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| Rok vydání: | 2007 |
| Předmět: |
Thorax
Adult Male Pulmonary and Respiratory Medicine medicine.medical_specialty Heart disease medicine.medical_treatment Pulmonary vein Atrial Fibrillation medicine Humans Bipolar radiofrequency Single institution Cardiac Surgical Procedures Aged Retrospective Studies Aged 80 and over business.industry Atrial fibrillation Middle Aged medicine.disease Ablation Surgery Concomitant Anesthesia Catheter Ablation Female business Cardiology and Cardiovascular Medicine |
| Zdroj: | The Journal of Thoracic and Cardiovascular Surgery. 133(4):1037-1044 |
| ISSN: | 0022-5223 |
| DOI: | 10.1016/j.jtcvs.2006.12.001 |
| Popis: | Objective This study compares clinical results of the standard Maze III operation, a highly effective treatment for atrial fibrillation, to less complex variations of the Maze III operation utilizing unipolar and bipolar radiofrequency ablation and pulmonary vein isolation. Methods Records were reviewed of 377 patients who had operations for treatment of atrial fibrillation at a single institution over a 10-year period. Standard Maze III was performed in 220 patients, unipolar radiofrequency Maze III in 60, bipolar radiofrequency Maze III in 65, and radiofrequency pulmonary vein isolation in 32. Electrocardiograms were obtained at discharge and 3-, 6-, and 12-month intervals. Chi-square test, logistic regression, and Bayesian theory analyses were performed to determine significant associations between operative procedures and outcomes. Results Mean age was 65.1 years (range 22-87). There were 13 hospital deaths (3.4%) and 16 deaths during follow-up. Most patients (90.2%, 340/377) had concomitant operations. Electrocardiogram analysis was available in 344 patients at 3 months and 313 patients at 6 months. Freedom from atrial fibrillation at 6 months was superior after standard Maze III compared with radiofrequency modifications. Subanalysis according to surgeon experience demonstrated good results regardless of operative experience. Conclusions This single-institution experience suggests that the standard Maze III operation is superior to radiofrequency operations for treatment of atrial fibrillation. Radiofrequency modifications of the Maze III operation are also effective treatments for atrial fibrillation and can achieve good results regardless of surgeon experience. |
| Databáze: | OpenAIRE |
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