Diagnostic and prognostic value of sex- and age-specific cutpoints for high-sensitivity Troponin T in non-ST-elevation acute coronary syndrome
Introduction - Sex- and age-specific high-sensitivity Troponin T (hs-cTnT) cutpoints for the diagnosis and prognosis in acute coronary syndromes are not well established. We evaluated the use of such dichotomous thresholds for calculation of the GRACE score. - Methods - We analyzed a retrospective c...
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| Hauptverfasser: | , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2019
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| In: |
International journal of cardiology
Year: 2018, Jahrgang: 275, Pages: 13-19 |
| ISSN: | 1874-1754 |
| DOI: | 10.1016/j.ijcard.2018.10.027 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1016/j.ijcard.2018.10.027 Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0167527318322484 
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| Verfasserangaben: | Christian Widera, Evangelos Giannitsis, Matthias Mueller-Hennessen, Ines Reimann, Anja Guba-Quint, Ivonne Marquardt, Kerstin Bethmann, Sven Meyer |
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| 245 | 1 | 0 | |a Diagnostic and prognostic value of sex- and age-specific cutpoints for high-sensitivity Troponin T in non-ST-elevation acute coronary syndrome |c Christian Widera, Evangelos Giannitsis, Matthias Mueller-Hennessen, Ines Reimann, Anja Guba-Quint, Ivonne Marquardt, Kerstin Bethmann, Sven Meyer |
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| 520 | |a Introduction - Sex- and age-specific high-sensitivity Troponin T (hs-cTnT) cutpoints for the diagnosis and prognosis in acute coronary syndromes are not well established. We evaluated the use of such dichotomous thresholds for calculation of the GRACE score. - Methods - We analyzed a retrospective cohort study of 1146 patients with non-ST-elevation acute coronary syndrome (NSTE-ACS). Sex-dependent hs-cTnT cutpoints comprised 15.5ng/L for men and 9.0ng/L for women, while the sex-/age-specific cutpoints comprised 17ng/L for 50-64-year-old men and ≥65-year-old women, 31ng/L for ≥65-year-old men and 14ng/L for the remainder of patients. - Results - For the diagnosis of NSTEMI using sex-specific hs-cTnT cutpoints, in women, the positive likelihood ratio (LR+) was 2.04 (1.68-2.47) while in men, the negative likelihood ratio (LR−) was 0.05 (0.04-0.07). Using sex-/age-specific hs-cTnT cutpoints, in ≥65-year-old women the LR− was 0.09 (0.06-0.15), in 50 to 64-year-old men the LR− was 0.08 (0.04-0.13) while in ≥65-year-old men the LR− was 0.32 (0.28-0.37). Sex-specific hs-cTnT cutpoints achieved an NRI of −0.020 (95% CI, −0.101-0.118) for women and 0.030 (95% CI, −0.013-0.079) for men, and the sex-/age-specific hs-cTnT cutpoints achieved an NRI of 0.061 (95% CI, −0.019-0.132) for women and 0.021 (95% CI, −0.062-0.108) for men, while net benefit and clinical utility were highest for women using the sex-/age-specific hs-cTnT cutpoints. - Conclusions - Sex-dependent hs-cTNT cutpoints imply increasing diagnostic sensitivity for women at the cost of specificity. Considering age for hs-cTNT cutoffs slightly improves risk reclassification, although the overall gain in terms of the clinical management appears negligible. | ||
| 534 | |c 2018 | ||
| 650 | 4 | |a ACS | |
| 650 | 4 | |a Diagnosis | |
| 650 | 4 | |a Prognosis | |
| 650 | 4 | |a Sex difference | |
| 650 | 4 | |a Troponin T | |
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