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  • Title: Myocardial 2D strain echocardiography and cardiac biomarkers in children during and shortly after anthracycline therapy for acute lymphoblastic leukaemia (ALL): a prospective study.
    Author: Mavinkurve-Groothuis AM, Marcus KA, Pourier M, Loonen J, Feuth T, Hoogerbrugge PM, de Korte CL, Kapusta L.
    Journal: Eur Heart J Cardiovasc Imaging; 2013 Jun; 14(6):562-9. PubMed ID: 23109647.
    Abstract:
    AIMS: The aim of this study was to investigate myocardial 2D strain echocardiography and cardiac biomarkers in the assessment of cardiac function in children with acute lymphoblastic leukaemia (ALL) during and shortly after treatment with anthracyclines. METHODS AND RESULTS: Cardiac function of 60 children with ALL was prospectively studied with measurements of cardiac troponin T (cTnT) and N-terminal-pro-brain natriuretic peptide (NT-pro-BNP) and conventional and myocardial 2D strain echocardiography before start (T = 0), after 3 months (T = 1), and after 1 year (T = 2), and were compared with 60 healthy age-matched controls. None of the patients showed clinical signs of cardiac failure or abnormal fractional shortening. Cardiac function decreased significantly during treatment and was significantly decreased compared with normal controls. Cardiac troponin T levels were abnormal in 11% of the patients at T = 1 and were significantly related to increased time to global peak systolic longitudinal strain at T = 2 (P = 0.003). N-terminal-pro-brain natriuretic peptide levels were abnormal in 13% of patients at T = 1 and in 20% at T = 2, absolute values increased throughout treatment in 59%. Predictors for abnormal NT-pro-BNP at T = 2 were abnormal NT-pro-BNP at T = 0 and T = 1, for abnormal myocardial 2D strain parameters at T = 2 cumulative anthracycline dose and z-score of the diastolic left ventricular internal diameter at baseline. CONCLUSION: Children with newly diagnosed ALL showed decline of systolic and diastolic function during treatment with anthracyclines using cardiac biomarkers and myocardial 2D strain echocardiography. N-terminal-pro-brain natriuretic peptide levels were not related to echocardiographic strain parameters and cTnT was not a predictor for abnormal strain at T = 2.Therefore, the combination of cardiac biomarkers and myocardial 2D strain echocardiography is important in the assessment of cardiac function of children with ALL treated with anthracyclines.
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