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Cox-Maze IV surgical AF ablation scheme. In dashed blue lines the proposed lesion set for the Cox-Maze IV (biatrial Maze). In red those lesions performed with bipolar radiofrequency ablation. In green, lesions performed with cryothermia. Order of lesions from left upper corner to the right starting with the left sided Maze and followed by the right side. Green arrow shows the lesion performed epicardially to the coronary sinus. AF, atrial fibrillation.
