• Arch Cardiol Mex · Jul 2016

    Comparative Study

    [Cox-maze III procedure for atrial fibrillation. A preliminary study].

    • Ovidio A García-Villarreal.
    • Departamento de Cirugía Cardíaca, Hospital de Cardiología UMAE 34, IMSS, Monterrey, Nuevo León, México. Electronic address: ovidiogv@hotmail.com.
    • Arch Cardiol Mex. 2016 Jul 1; 86 (3): 208-13.

    AimTo compare the efectiveness of the cut-and-sew Cox-maze III procedure against the Cox-maze IV peocedure by means of intraoperative bipolar radiofrequency delivery clamp.MaterialFrom January 2011 to October 2014, 50 patients were operated on with surgery for atrial fibrillation. All cases underwent mitral valve surgery as the first procedure, and secondarily a surgical procedure for atrial fibrillation was also performed. There were 2 groups. Group I (Cox-maze III «cut-and-sew»), and Group II (Cox-maze IV, intraoperative bipolar radiofrequency ablation). Group I was formed by 36 patients, and Group II by 14. All cases had atrial fibrillation longer than 1 year. The end-point was freedom of atrial fibrillation.ResultsThere was no statistically significant difference between both groups regarding the basal and operative characteristics. Operative mortality was of 2 cases in the Group I, and no cases for Group II (P=0.9). A high tendency to eliminate atrial fibrillation in favour of Group I was observed (92% vs 53%, P<.001) in a 6 months follow-up.ConclusionsClassic standard Cox-maze III procedure showed superiority to eliminate atrial fibrillation over the Cox-maze IV procedure made with bipolar radiofrequency ablation clamp in patients with concomitant mitral valve disease.Copyright © 2016 Instituto Nacional de Cardiología Ignacio Chávez. Publicado por Masson Doyma México S.A. All rights reserved.

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