Clementy examined 160 patients with paroxysmal and persistent AF after radiofrequency ablation and found that a high level of galectin-3 in blood serum (OR = 1.07, 95% CI = 1.01–1.12, p = 0.02) and enlargement of the left atrium (OR = 1.07, 95% CI = 1.03–1.12, p = 0.001) were independent predictors of recurrence of AF paroxysms [28]. Here, LGALS3 is linked to atrial fibrillation.