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J Cardiovasc Thorac Res. 2014;6(1):29-33. doi: 10.5681/jcvtr.2014.006. Epub 2014 Mar 21.

Cost-effectiveness of cardiac biomarkers as screening test in acute chest pain.

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  • 1Department of Emergency Medicine, Imam Reza Hospital, Tabriz University of Medical Sciences, Tabriz, Iran.
  • 2Students' Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.
  • 3Medical Philosophy and History Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.



Acute chest pain is an important and frequently occurring symptom in patients. Chest pain is often a sign of ischemic heart disease. Associated findings of electrocardiograph (ECG) are rather heterogeneous, and traditional cardiac biomarkers such as Creatine Kinase-MB (CK-MB) suffer from low cardiac specificity and sensitivity. In this study cost effectiveness of cardiac biomarkers single quantitative measurement was examined.


The present descriptive-analytic study conducted on patients who were asked for troponin I and CK-MB. All patients who referred to Emergency unit of Tabriz Imam Reza educational-medical center during January 2012 to July the 2013 were included in study. All patients included in the study were documented in terms of age, sex, working shift of referring, main complaint of patient, symptoms in referring, ECG findings, and results of troponin I and CK-MB tests.


In this study, 2900 patients were studied including 1440 (49.7%) males and 1460 (50.3%) females. Mean age of patients was 62.91 (SD=14.36). Of all patients 1880 (64.8%) of patients referred during 8 a.m. to 8 p.m. and 1020 (35.2%) patients were referred during 8 p.m. to 8 a.m. The sensitivity of cardiac biomarkers' test in diagnosing Acute Coronary Syndrome (ACS) disease was calculated as 44.8% and its specificity was 86.6%. For diagnosing Acute Myocardial Infarction (AMI), sensitivity of cardiac biomarkers' test was 72.2% and its specificity was 86%. None of patients who were finally underwent unstable angina diagnosis showed increase in cardiac enzymes.


In conclusion, cardiac biomarkers can be used for screening acute chest pains, also cost effectiveness of cardiac biomarkers, appropriate specificity and sensitivity can guarantee their usefulness in emergency room.


Acute Chest Pain; Cardiac Biomarkers; Creatine Kinase-MB; Myocardial Infarction

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