AHF - acute heart failure; BNP - B-type natriuretic peptide; EF - ejection fraction; HF - heart failure; IVC - inferior vena cava; JVP - jugular venous pressure; LAD - left anterior descending artery; LV - left ventricle; LVIDd - left ventricular internal diameter end diastole; NT-proBNP - N-terminal pro B-type natriuretic peptide; RCA - right coronary artery; RVIDd - right ventricular internal dimension end diastole; SBP - systolic blood pressure. Here, NPPB is linked to heart failure.