The Comparison and Validity of Troponin I Assay Systems in Diagnosing Myocardial Ischemic Injury After Surgical Coronary Revascularization

Conclusions: These data highlight differences between commercially available troponin-I assay systems. The authors recommend that each institution establish a local reference range and threshold indicative of perioperative myocardial infarction for its specific patient population and assay system and provide sample methodology.