Fig. 3From: The effect of empirical superior vena cava isolation during total thoracoscopic ablation in patients with persistent atrial fibrillationAtrial tachyarrhythmia free survival rate according to subgroup. A persistent atrial fibrillation. B long-standing persistent atrial fibrillation. C left atrial diameterā<ā50Ā mm. D left atrial diameterāā„ā50Ā mmBack to article page