NYHA class, NT-proBNP, sex, race, CABG or PCI, cancer, MI, ARNI/ACEI, QRS duration, ECG left ventricular hypertrophy; NYHA class, NT-proBNP, LVEF, ischemic etiology, SBP, HF duration, ECG bundle branch block, albumin, chloride, creatinine. The gene discussed is NPPB; the disease is hydrops fetalis.