Abstract
Objectives Cardiac troponins are highly sensitive and specific markers of myocardial cell injury. We wished to determine the clinical relevance of raised troponins in the absence of significant angiographic coronary artery disease. Design and methods We assessed patients admitted to our hospital over the past 3 years with troponin-positive chest pain and no angiographically significant coronary disease. Results The study included 67 patients, all of whom had symptoms of “chest pain” and elevated (>0.2 μg/L) troponin I on admission. Thirty-four (51%) patients had alternative causes for myocyte injury other than coronary ischaemia. In the remaining 33 (49%) patients we could find no other associated features or diagnoses. Follow up was obtained in 29 (88%) of these 33 patients (mean follow up 58±13 weeks, range 17–156 weeks). During the follow up period, three (4.5%) patients were readmitted with further ischaemic events. Conclusions Myocardial damage can occur in the absence of significant angiographic coronary disease and other causes of raised troponins should be considered according to the clinical presentation. Troponin-positive cases with angiographically “normal” coronary arteries can re-present with future cardiac events and should still be considered for aggressive risk management.
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