An editorial published in JAMA outlines using a biomarker to spot patients that experience experienced a heart attack, enabling physicians to undertake aggressive treatment immediately. Till Keller, M.D., of the University Heart Center Hamburg, Germany, and co-workers evaluated the diagnostic performance of the newly developed highly sensitive troponin I (hsTnI) assay compared with a up to date troponin I (cTnI) assay and their serial changes within the diagnosis of heart attack… 