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 associates evaluated the diagnostic performance of the newly developed highly sensitive troponin I (hsTnI) assay compared with a modern troponin I (cTnI) assay and their serial changes within the diagnosis of heart attack… 