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European Heart Journal 1996 17(Supplement F):3-8; doi:10.1093/eurheartj/17.suppl_F.3
Copyright © 1996 by the European Society of Cardiology.
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© 1996 1996 The European Society of Cardiology

Troponin T: A diagnostic marker for myocardial infarction and minor cardiac cell damage

W. Rottbauer, T. Greten, M. Müller-Bardorff, A. Remppis, J. Zehelein, E. Grünig and H. A. Katus

University Hospital, Department of Internal Medicine III Heidelberg, Germany

Correspondence: Hugo A. Katus, MD, Medizinische Klinik II, University of Lübeck, Ratzeburger Allee A60 23538 Lübeck, Germany

The diagnosis of acute myocardial infarction is straightforward when anginal pain is accompanied by typical ECG changes and in these patients measurements of cardiac markers are unnecessary in deciding whether thrombolytic therapy is appropriate. Cardiac markers in patients with acute ischaemic coronary syndromes, however, may serve to identify a high risk subgroup of patients with small acute infarctions or minor myocardial damage. In many patients with chest pain a valid diagnosis of myocardial cell mjury depends on the result of biochemical assays. In 30% of patients with unstable angina, troponin T is elevated although myocardial infarction was ruled out by cardiac enzymes and ECG recordings. The outcome of these patients at 4 weeks and 6 months follow-up is not different from that of patients with definite myocardial infarction. To guide therapeutic decisions on these patients a troponin T test result needs to be available rapidly.

The rapid troponin T test strip assay, which allows the determination of troponin T levels in whole blood at the patient's bedside, can be performed conveniently in the emergency room or in laboratories with less sophisticated equipment and has the potential to aid in the triage of chest pain patients and the selection of therapeutic strategies.

Key Words: Troponin T • acute myocardial infarction • minor cell damage • unstable angina


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