We present the case of a 48-year-old female carrier of Duchenne muscular dystrophy (DMD) with repeatedly documented levels of elevated troponin T without arguments for cardiac ischaemia. Elevated levels of troponin T are frequently reported in DMD patients and may function as a useful cardiac index to assess dystrophic degeneration of the myocardium in a subclinical stage. Cardiac troponins may help the clinician to diagnose myocardial damage in a very early stage of cardiac impairment independently from skeletal muscle degeneration.
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