Document Detail

Direct comparison of high-sensitivity-cardiac troponin I vs. T for the early diagnosis of acute myocardial infarction.
MedLine Citation:
PMID:  24842285     Owner:  NLM     Status:  Publisher    
AIM: It is unknown whether cardiac troponin (cTn) I or cTnT is the preferred biomarker in the early diagnosis of acute myocardial infarction without ST segment elevation (NSTEMI).
METHODS AND RESULTS: In a prospective multicentre study, we measured cTnI and cTnT using clinically available high-sensitivity assays (hs-cTnI Abbott and hs-cTnT Roche) and compared their diagnostic and prognostic accuracies in consecutive patients presenting to the emergency department with acute chest pain. The final diagnosis was adjudicated by two independent cardiologists using all information pertaining to the individual patient. The mean follow-up was 24 months. Among 2226 consecutive patients, 18% had an adjudicated final diagnosis of NSTEMI. Diagnostic accuracy at presentation as quantified by the area under the receiver-operating-characteristics curve (AUC) for NSTEMI was very high and similar for hs-cTnI [AUC: 0.93, 95% confidence interval (CI) 0.92-0.94] and hs-cTnT (0.94, 95% CI: 0.92-0.94) P = 0.62. In early presenters (<3 h since chest pain onset) hs-cTnI showed a higher diagnostic accuracy (AUC: 0.92, 95% CI: 0.89-0.94) when compared with hs-cTnT AUC (0.89, 95% CI: 0.86-0.91) (P = 0.019), while hs-cTnT was superior in late presenters [AUC hs-cTnT 0.96 (95% CI: 0.94-0.96)  vs. hs-cTnI 0.94 (95% CI: 0.93-0.95); P = 0.007]. The prognostic accuracy for all-cause mortality, quantified by AUC, was significantly higher for hs-cTnT (AUC: 0.80; 95% CI: 0.78-0.82) when compared with hs-cTnI (AUC: 0.75; 95% CI: 0.73-0.77; P < 0.001).
CONCLUSION: Both hs-cTnI and hs-cTnT provided high diagnostic and prognostic accuracy. The direct comparison revealed small but potentially important differences that might help to further improve the clinical use of hs-cTn.
Maria Rubini Gimenez; Raphael Twerenbold; Tobias Reichlin; Karin Wildi; Philip Haaf; Miriam Schaefer; Christa Zellweger; Berit Moehring; Fabio Stallone; Seoung Mann Sou; Mira Mueller; Kris Denhaerynck; Tamina Mosimann; Miriam Reiter; Bernadette Meller; Michael Freese; Claudia Stelzig; Irina Klimmeck; Janine Voegele; Beate Hartmann; Katharina Rentsch; Stefan Osswald; Christian Mueller
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-5-19
Journal Detail:
Title:  European heart journal     Volume:  -     ISSN:  1522-9645     ISO Abbreviation:  Eur. Heart J.     Publication Date:  2014 May 
Date Detail:
Created Date:  2014-5-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8006263     Medline TA:  Eur Heart J     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Published on behalf of the European Society of Cardiology. All rights reserved. © The Author 2014. For permissions please email:
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