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- W1505243553 abstract "Background: Although measurements of serum creatine kinase levels, as well as myoglobin levels, has been used for screening patients with acute coronary syndrome (ACS), the specificity of both is low. Measurement of cardiac troponin levels is now extensively used for the diagnosis of ACS because of their superior cardiac specificity. However, troponin levels are reportedly elevated not only in patients with ACS but also in those with the other diseases.Methods and Results: The clinical characteristics of 1,023 patients (mean age: 63.5±16.3 years; males: 665, females: 358) whose serum cardiac troponin I (cTnI) levels had been measured at the initial visit to the emergency room of Toyota Memorial Hospital between April 2004 and March 2005 were retrospectively analyzed. A positive elevation of cTnI was defined as cTnI ≧0.03ng/ml. There were 432 patients (42.2%) with positive cTnI levels. The cTnI levels (8.48±2.64ng/ml) in patients with acute myocardial infarction (AMI) were greater than those (0.25±0.07ng/ml) in patients with unstable angina pectoris (AP), as well as those (0.04±0.01ng/ml) in patients with stable AP. In terms of the diagnosis of AMI, the sensitivity was high enough (94.6%), but its specificity was relatively low (61.9%). Furthermore, the differentiation between AMI and unstable AP by the cTnI values alone was impossible. The cTnI levels were elevated in patients with a variety of diseases other than ACS, including heart failure, cardiomyopathies, myocarditis, renal failure, tachyarrhythmias, and pulmonary embolism. Conclusions: Elevations of the cTnI level is frequently observed in patients in the emergency room with common diseases other than ACS.%%%%名古屋大学博士学位論文 学位の種類:博士(医療技術学) (課程) 学位授与年月日:平成20年3月25日" @default.
- W1505243553 created "2016-06-24" @default.
- W1505243553 creator A5000858138 @default.
- W1505243553 date "2008-03-25" @default.
- W1505243553 modified "2023-09-24" @default.
- W1505243553 title "Clinical significance of measurement of cardiac troponin I in Emergency Room" @default.
- W1505243553 hasPublicationYear "2008" @default.
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