In univariate Logistic binary regression analysis, age, Killip degree, diabetes, BNP, LVEF, Lactate, D–D dimer, creatinine, CK-MB, post-PCI SBP and DBP, atrial fibrillation, heart failure, culprit vessel of LM, and post-PCI CTFC were identified predictors for POCA occurrence. The gene discussed is NPPB; the disease is atrial fibrillation.