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Prognostic factors in patients with minor troponin-I elevation but without acute myocardial infarction

Authors
 Sang Hak Lee  ;  Seong Bo Yoon  ;  Jae-Hun Jung  ;  Seung-Hyuk Choi  ;  Namho Lee  ;  Goo-Yeong Cho  ;  Dong-Jin Oh  ;  Chong-Yun Rhim  ;  Kwang-Hwak Lee 
Citation
 CORONARY ARTERY DISEASE, Vol.17(3) : 249-253, 2006 
Journal Title
 CORONARY ARTERY DISEASE 
ISSN
 0954-6928 
Issue Date
2006
MeSH
Adult ; Aged ; Aged, 80 and over ; Analysis of Variance ; Biomarkers/blood ; C-Reactive Protein/metabolism ; Coronary Artery Disease/blood ; Creatine Kinase, MB Form/blood ; Female ; Follow-Up Studies ; Humans ; Inflammation Mediators/blood ; Korea ; Male ; Middle Aged ; Myocardial Infarction/blood* ; Myocardial Infarction/diagnosis* ; Myocardial Infarction/mortality ; Predictive Value of Tests ; Prognosis ; Proportional Hazards Models ; Research Design ; Risk Factors ; Survival Analysis ; Troponin I/blood*
Keywords
chest pain ; creatine kinase myocardial isoform form ; mortality determinants ; troponin
Abstract
OBJECTIVES: Although cardiac troponin I is widely used as a marker for myocardial infarction, its minor elevations are also observed in other clinical situations, and the prognostic factors in such clinical settings have not been well established. The aim of this study was to identify predictors of mortality in patients with minor troponin elevations without an acute myocardial infarction. METHODS: We consecutively enrolled 134 patients from the emergency department with a peak troponin I level greater than the lower limit of detectability (0.04 ng/ml) but less than the 10% coefficient of variation cutoff value for diagnosis of myocardial infarction (0.26 ng/ml). These patients had chest pain or nonspecific symptoms of a circulatory abnormality but lacked the traditional features of an acute myocardial infarction. End point was defined as death from all causes. Cox regression analysis was used to test relations between clinical and biochemical variables and the outcome. RESULTS: During the follow-up of 7.6+/-7.4 months, 12 patients died. Age, log creatine kinase myocardial isoform, and log C-reactive protein were found to be significantly correlated with death. After adjusting for possible confounders in the multivariate model, age (hazard ratio 1.09, confidence interval 1.02-1.16, P=0.012), log creatine kinase myocardial isoform (hazard ratio 13.11, confidence interval 2.01-85.52, P=0.007), and log C-reactive protein (hazard ratio 1.64, confidence interval 1.02-2.56, P=0.041) were identified as independent predictors of mortality. CONCLUSIONS: Creatine kinase myocardial isoform and C-reactive protein levels and age can be integrated to risk-stratify patients with minor troponin I elevation for reasons other than acute myocardial infarction.
Full Text
http://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&AN=00019501-200605000-00008&LSLINK=80&D=ovft
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Lee, Sang Hak(이상학) ORCID logo https://orcid.org/0000-0002-4535-3745
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/110982
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