“…15 Combining 2 signals of cardiomyocyte damage, hs-cTnT and hs-cTnI, might overcome some individual pathophysiological and analytical limitations and thereby increase diagnostic accuracy for AMI with a single blood draw. 11,16,17 Despite differences in biochemical characteristics and release kinetics, 18,19 a recent direct comparison between hs-cTnI and hs-cTnT showed similar, high diagnostic accuracy for AMI, emphasizing the similarities between both isoforms. 12 Based on the observation of an imperfect correlation between blood concentrations of cTnT and cTnI in chronic and acute disorders, 20,21 and in analogy to the quantification of renal function using creatinine and cystatin C, where the combination of 2 parameters associated with the same pathophysiological process but influenced by distinct factors led to a more precise and accurate indicator, 22 we hypothesize that combining hs-cTnI and hs-cTnT concentrations will overcome independent pathophysiological, preanalytical, and analytical differences of the individual molecules, and might therefore have higher diagnostic accuracy for AMI than either hs-cTnI or hs-cTnT alone.…”