Biomarkers and metabolomic profiling of patients The investigators propose to measure routinely collected and novel markers that appear most promising for clinical predictive value, including N-terminal brain natriuretic peptide (NT-BNP), high-sensitivity C-reactive protein (hs-CRP), apolipoprotein A1 (apoA1), apolipoprotein B (apoB), lipoprotein A (Lp(a)), and cystatin C.