Differences in measurement of high-sensitivity troponin in an on-demand and batch-wise setting
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Differences in measurement of high-sensitivity troponin in an on-demand and batch-wise setting. / Sörensen, Nils Arne; Neumann, Johannes Tobias; Ojeda, Francisco; Renné, Thomas; Karakas, Mahir; Blankenberg, Stefan; Westermann, Dirk; Zeller, Tanja.
in: EUR HEART J-ACUTE CA, Jahrgang 10, Nr. 3, 11.05.2021, S. 302–309.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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T1 - Differences in measurement of high-sensitivity troponin in an on-demand and batch-wise setting
AU - Sörensen, Nils Arne
AU - Neumann, Johannes Tobias
AU - Ojeda, Francisco
AU - Renné, Thomas
AU - Karakas, Mahir
AU - Blankenberg, Stefan
AU - Westermann, Dirk
AU - Zeller, Tanja
PY - 2021/5/11
Y1 - 2021/5/11
N2 - BACKGROUND: Most studies assessing the diagnostic value of high-sensitivity troponin in the diagnosis of myocardial infarction used batch-wise analyses of frozen samples for high-sensitivity troponin measurements. Whether the accuracy of these batch-wise high-sensitivity troponin measurements described in diagnostic studies is comparable to clinical routine is unknown.METHODS: We enrolled 937 patients presenting with suspected myocardial infarction in this prospective cohort study. Measurements of high-sensitivity troponin I (Abbott Architect) and high-sensitivity troponin T (Roche) were performed in two settings: (a) on-demand in clinical routine using fresh blood samples; and (b) in batches using frozen blood samples from the same individuals at three timepoints (0 hours, 1 hour and 3 hours after presentation).RESULTS: Median troponin levels were not different between on-demand and batch-wise measurements. Troponin levels in the range of 0 to 40 ng/L showed a very high correlation between the on-demand and batch setting (Pearson correlation coefficient (r) was 0.92-0.95 for high-sensitivity troponin I and 0.96 for high-sensitivity troponin T). However, at very low troponin levels (0 to 10 ng/L) correlation between the two settings was moderate (r for high-sensitivity troponin I 0.59-0.66 and 0.65-0.69 for high-sensitivity troponin T). Application of guideline-recommended rapid diagnostic algorithms showed similar diagnostic performance with both methods.CONCLUSIONS: Overall on-demand and batch-wise measurements of high-sensitivity troponin provided similar results, but their correlation was moderate, when focusing on very low troponin levels. The application of rapid diagnostic algorithms was safe in both settings.Trial Registration: www.clinicaltrials.gov (NCT02355457).
AB - BACKGROUND: Most studies assessing the diagnostic value of high-sensitivity troponin in the diagnosis of myocardial infarction used batch-wise analyses of frozen samples for high-sensitivity troponin measurements. Whether the accuracy of these batch-wise high-sensitivity troponin measurements described in diagnostic studies is comparable to clinical routine is unknown.METHODS: We enrolled 937 patients presenting with suspected myocardial infarction in this prospective cohort study. Measurements of high-sensitivity troponin I (Abbott Architect) and high-sensitivity troponin T (Roche) were performed in two settings: (a) on-demand in clinical routine using fresh blood samples; and (b) in batches using frozen blood samples from the same individuals at three timepoints (0 hours, 1 hour and 3 hours after presentation).RESULTS: Median troponin levels were not different between on-demand and batch-wise measurements. Troponin levels in the range of 0 to 40 ng/L showed a very high correlation between the on-demand and batch setting (Pearson correlation coefficient (r) was 0.92-0.95 for high-sensitivity troponin I and 0.96 for high-sensitivity troponin T). However, at very low troponin levels (0 to 10 ng/L) correlation between the two settings was moderate (r for high-sensitivity troponin I 0.59-0.66 and 0.65-0.69 for high-sensitivity troponin T). Application of guideline-recommended rapid diagnostic algorithms showed similar diagnostic performance with both methods.CONCLUSIONS: Overall on-demand and batch-wise measurements of high-sensitivity troponin provided similar results, but their correlation was moderate, when focusing on very low troponin levels. The application of rapid diagnostic algorithms was safe in both settings.Trial Registration: www.clinicaltrials.gov (NCT02355457).
U2 - https://doi.org/10.1177/2048872620924198
DO - https://doi.org/10.1177/2048872620924198
M3 - SCORING: Journal article
C2 - 32700543
VL - 10
SP - 302
EP - 309
JO - EUR HEART J-ACUTE CA
JF - EUR HEART J-ACUTE CA
SN - 2048-8726
IS - 3
ER -