CRP and obesity due to melanocortin 4 receptor deficiency: In the setting of AMI, previous studies have demonstrated a number of risk factors for NOAF in AMI patients, such as old age, female gender, obesity, history of hypertension, history of stroke, higher Killip class or heart failure, hypotension, higher heart rate, higher CHADS2 score, increased peak creatinine kinase, C-reactive protein and N-terminal pro-brain natriuretic peptide levels [5, 6, 13, 16, 21, 23–25, 27, 28].