NPPB and atrial fibrillation: The univariate analyses showed that ischemia cardiomyopathy, QRS duration, AF on EKG, creatinine, BNP, Na+, Cl-, CMR-LVEDV, CMR-LVESV, CMR-LVMASS, and CMR-LVGFI was associated with a significant increase in the incidence of MACEs.