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Document Details : Title: Troponin I in atrial fibrillation with no coronary atherosclerosis Author(s): NUNES, José Pedro , SILVA, João Carlos , MACIEL, Maria Júlia Journal: Acta Cardiologica Volume: 59 Issue: 3 Date: June 2004 Pages: 345-346 DOI: 10.2143/AC.59.3.2005193 Abstract : A number of reports have raised the possibility that myocardial strain could be associated to increased plasma levels of troponin I. A 69-year-old, male, Caucasian, patient was admitted with prolonged chest pain and dyspnoea. The electrocardiogram showed atrial fibrillation with a ventricular rate of about 120 to 150/minute. After treatment with digoxin and amiodarone, the patient returned to sinus rhythm. An elevation in the plasma levels of troponin I was noted, with a maximum value of 0.66 ng/ml. Coronary angiography showed absence of coronary artery atherosclerotic lesions. Atrial fibrillation of recent onset and with a relatively high heart rate may be yet another situation in which acute myocardial strain could be the cause of the abnormal release of cardiac troponin I. |
