PMID- 23787156 OWN - NLM STAT- MEDLINE DCOM- 20140423 LR - 20151119 IS - 1876-4738 (Electronic) IS - 0914-5087 (Linking) VI - 62 IP - 4 DP - 2013 Oct TI - Increasing specificity of high-sensitivity troponin: new approaches and perspectives in the diagnosis of acute coronary syndromes. PG - 205-9 LID - S0914-5087(13)00143-3 [pii] LID - 10.1016/j.jjcc.2013.04.005 [doi] AB - In the past years, new generations of assays to detect cardiac troponin (cTn), called sensitive or high sensitivity troponin (hs-Tn), have been introduced. Progressive improvement in the analytical sensitivity of cTn assays has led to a more rapid diagnosis of acute myocardial infarction (AMI) and improved risk stratification in patients with non ST-elevation acute coronary syndromes (NSTE-ACS) but, at the same time, has introduced the problem of a lower diagnostic specificity. As a matter of fact, hs-Tn assays are able to detect very small increases in the biomarker concentration and therefore result "positive" in a wide range of non-ischemic clinical conditions, acute and chronic, cardiac and extra-cardiac. The reduced specificity of hs-Tn versus the previous generation cTn assays may, therefore, lead to an increased number of inappropriate hospitalizations, i.e. patients with high cTn due to no-ACS conditions, and requires a more careful evaluation, not only on the clinical side, but also on the information that hs-Tn assessment may provide. Several approaches to increase this specificity have been used, but the most promising appear to be the "delta approach", which tries to quantify the relative or absolute change in cTn concentration, and the "age approach", which highlights the need for a different cutoff with a better diagnostic efficiency in the elderly population, often affected by other conditions, different from ACS, that can cause an increased level of cTn. CI - Copyright (c) 2013 Japanese College of Cardiology. Published by Elsevier Ltd. All rights reserved. FAU - Marini, Maria Giulia AU - Marini MG AD - Institute of Cardiology, Catholic University of the Sacred Heart, Rome, Italy. FAU - Cardillo, Maria Teresa AU - Cardillo MT FAU - Caroli, Annalisa AU - Caroli A FAU - Sonnino, Chiara AU - Sonnino C FAU - Biasucci, Luigi M AU - Biasucci LM LA - eng PT - Journal Article PT - Review DEP - 20130617 PL - Netherlands TA - J Cardiol JT - Journal of cardiology JID - 8804703 RN - 0 (Biomarkers) RN - 0 (Troponin) SB - IM MH - Acute Coronary Syndrome/blood/*diagnosis MH - Age Factors MH - Biomarkers/blood MH - Humans MH - Immunoassay/methods/trends MH - Sensitivity and Specificity MH - Troponin/*blood OTO - NOTNLM OT - Acute coronary syndrome OT - High sensitivity troponin OT - "Age approach" OT - "Delta approach" EDAT- 2013/06/22 06:00 MHDA- 2014/04/24 06:00 CRDT- 2013/06/22 06:00 PHST- 2013/04/03 00:00 [received] PHST- 2013/04/16 00:00 [revised] PHST- 2013/04/22 00:00 [accepted] PHST- 2013/06/22 06:00 [entrez] PHST- 2013/06/22 06:00 [pubmed] PHST- 2014/04/24 06:00 [medline] AID - S0914-5087(13)00143-3 [pii] AID - 10.1016/j.jjcc.2013.04.005 [doi] PST - ppublish SO - J Cardiol. 2013 Oct;62(4):205-9. doi: 10.1016/j.jjcc.2013.04.005. Epub 2013 Jun 17.