Correlation analysis indicated that age (r = −0.106, P = 0.001), alcohol consumption (r = −0.080, P = 0.01), AF Type (r = −0.661, P = 0), HF (r = −0.349, P = 0), resting heart rate (−0.220 P = 0), SUA (r = −0.14, P = 0), hs-CRP (r = −0.076, P = 0), HbA1C (r = −0.126, P = 0), B2M (r = −0.067 P = 0.029), and LAD (r = −0.513, P = 0) were negatively correlated with LAAEV, while eGFR (r = 0.162, P = 0) and LVEF (r = 0.333, P = 0) were positively correlated. This evidence concerns the gene CRP and atrial fibrillation.