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- W2172679369 abstract "Delivering superior clinical specificity and sensitivity for myocardial necrosis, cardiac troponin has replaced creatine kinase-MB as the preferred biomarker for establishing the diagnosis of myocardial infarction. On the basis of expert recommendations, present convention sets the diagnostic decision-limit for each assay at the 99th percentile of troponin levels in an apparently healthy reference population. Owing to a lack of standardization between different assays, this level, corresponding to the 99th percentile, will vary depending upon the manufacturer. Among patients presenting with an acute coronary syndrome (ACS), even low-level elevations of cardiac troponin T or I are associated with higher risk of death and recurrent ischemic events compared with patients with a troponin level below the appropriate decision limit. Renal failure does not appear to diminish the prognostic value of troponins among patients with a high clinical probability of ACS. In addition, patients with elevated levels of troponin appear to gain the most benefit from more aggressive medical therapy with antithrombin and antiplatelet medications as well as an early invasive management strategy. Cardiac troponins offer extremely high tissue specificity but do not discriminate between ischemic and nonischemic mechanisms of myocardial injury; thus, presently the clinician must assess whether a patient's presenting symptoms are consistent with ACS. It is possible that future generations of troponin assays will detect specific post-translational modifications of troponins that may increase the analytic sensitivity for myocardial damage and offer insight into the timing and mechanism of myocardial injury." @default.
- W2172679369 created "2016-06-24" @default.
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- W2172679369 date "2003-01-01" @default.
- W2172679369 modified "2023-10-16" @default.
- W2172679369 title "Troponins in Acute Coronary Syndromes" @default.
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- W2172679369 doi "https://doi.org/10.1055/s-2004-815694" @default.
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