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Utility of high-sensitivity cardiac troponin T in patients receiving anthracycline chemotherapy

Authors Blaes A, Rehman A, Vock D, Luo X, Menge M, Yee D, Missov E, Duprez D

Received 4 June 2015

Accepted for publication 2 October 2015

Published 24 November 2015 Volume 2015:11 Pages 591—594


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 5

Editor who approved publication: Dr Reza Tabrizchi

Anne H Blaes,1 Aamer Rehman,2 David M Vock,3,4 Xianghua Luo,3,4 Mark Menge,5 Douglas Yee,3 Emil Missov,6 Daniel Duprez6

1Division of Hematology/Oncology/Transplantation, Department of Medicine, University of Minnesota, Minneapolis, MN, 2Division of Cardiology, University of Louisville, Louisville, KY, 3Masonic Cancer Center, 4Division of Biostatistics, School of Public Health, University of Minnesota, Minneapolis, 5Park Nicollet Frauenshuh Cancer Center, St Louis Park, 6Division of Cardiology, Department of Medicine, University of Minnesota, Minneapolis, MN, USA

Background: Anthracycline chemotherapy remains an integral part of the care for curative intent chemotherapy in breast cancer and non-Hodgkin lymphoma patients. Better tools need to be identified to predict cardiac complications of anthracycline chemotherapy.
Materials and methods: We investigated the utility of high-sensitivity cardiac troponin T (hscTnT), N-terminal pro-B-type natriuretic peptide, cardiac troponin T and I, and creatine kinase (CK)-MB in cancer patients receiving anthracycline-based chemotherapy, in order to determine whether baseline levels or changes in these biomarkers may help predict the onset of congestive heart failure.
Results: Eighteen consecutive patients with a pathologic diagnosis of breast cancer or non-Hodgkin lymphoma were enrolled. The median dose of doxorubicin exposure was 240 mg/m2 (range 240–400 mg/m2). After treatment with doxorubicin, the hscTnT increased to 19.1 pg/mL (P<0.001). CKMB and N-terminal pro-B-type natriuretic peptide levels increased to 1.1 ng/mL and 88.3 pg/mL, respectively (P=0.02). When subjects who had a decline in left ventricular ejection fraction (LVEF) by equilibrium radionuclide ventriculography were compared to those who did not have a change in LVEF, there was a suggestion that those subjects with an elevated baseline hscTnT were more likely to have a decline in LVEF (2.7 pg/mL and 0.1 pg/mL, respectively; P=0.07). Spearman correlation demonstrated that patients with higher baseline hscTnT and CKMB tended to have a greater decline in LVEF (Spearman correlation -0.54, 95% confidence interval -0.80 to -0.08 [P=0.02], and -0.49, 95% confidence interval -0.77 to -0.01 [P=0.04], respectively).
Conclusion: Elevations in baseline hscTnT levels are suggestive of an oncology subgroup at high risk of developing cardiac complications from their chemotherapy. Early detection by oncologists with the use of baseline biomarkers may be clinically important in designing interventions to prevent serious anthracycline-based chemotherapy complications.

Keywords: troponin T, doxorubicin, cardiomyopathy, chemotherapy

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