Journal of Chest Surgery

  • 제47권4호
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  • Pages.367-372
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  • 2014
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  • 2765-1606(pISSN)
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  • 2765-1614(eISSN)
대한심장혈관흉부외과학회 (The Korean Society for Thoracic and Cardiovascular Surgery)
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Efficacy of Cox Maze IV Procedure Using Argon-Based Cryoablation: A Comparative Study with $N_2O$-Based Cryoablation

  • Lee, Kyung-Hak (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine) ;
  • Min, Jooncheol (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine) ;
  • Kim, Kyung-Hwan (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine) ;
  • Hwang, Ho Young (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine) ;
  • Kim, Jun Sung (Department of Thoracic and Cardiovascular Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine)
  • 투고 : 2013.10.22
  • 심사 : 2013.11.21
  • 발행 : 2014.08.05
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초록

Background: We compared the mid-term results of the Cox maze IV procedure using argon-based cryoablation with a procedure using $N_2O$-based cryoablation. Methods: From May 2006 to June 2012, 138 patients (mean age, $58.2{\pm}11.0$ years) underwent the Cox maze IV procedure. Eighty-five patients underwent the maze procedure using an $N_2O$-based cryoprobe (group N), and 53 patients underwent the maze procedure using an argon-based cryoprobe (group A). Bipolar radiofrequency ablation was concomitantly used in 131 patients. The presence of atrial fibrillation immediately, 6 months, 1 year, and 2 years after surgery was compared. Results: Early mortality occurred in 6 patients (4.3%). There were no differences in early mortality or postoperative complications between the two groups. Nineteen of 115 patients (16.5%) remained in atrial fibrillation at postoperative 12 months (14 of 80 patients (17.5%) in group N and 5 of 35 patients (14.3%) in group A, p=0.669). There were no differences in the number of patients who remained in atrial fibrillation at any of the time periods except in the immediate postoperative period. A multivariable analysis revealed that the energy source of cryoablation was not associated with the presence of atrial fibrillation at 1 year (p=0.862) and that a fine F wave (<0.1 mV) was the only risk factor predicting the presence of atrial fibrillation at 1 year (p<0.001, odds ratio=20.287). Conclusion: The Cox maze IV procedure using an argon-based cryoprobe was safe and effective compared with the maze procedure using an $N_2O$-based cryoprobe in terms of operative outcomes and the restoration of sinus rhythm for up to 2 years after surgery.

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참고문헌

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피인용 문헌

  1. Characteristics of the new AtriCure cryoFORM® cryoablation probe for the surgical treatment of cardiac arrhythmias vol.14, pp.4, 2014, https://doi.org/10.1080/17434440.2017.1309972
  2. Comparison of Radiofrequency Ablation and Cryoablation for the Recovery of Atrial Contractility and Survival vol.51, pp.4, 2014, https://doi.org/10.5090/kjtcs.2018.51.4.266