Age, gender, heart failure, chronic kidney disease, type of AF, beta blocker usage, pre‐procedural antiarrhythmic drug usage, post‐procedural antiarrhythmic drug usage, diuretic usage, LVEF, LAD, CHADS2 score, CHADS2VASC score, eGFR, BNP, hemoglobin, lymphocyte count, cryoablation, posterior wall isolation, Cavo tricuspid isthmus block line, superior vena cava isolation, GNRI‐based nutritional risk. The gene discussed is NPPB; the disease is atrial fibrillation.