Abstract
BackgroundThe main strategy for minimizing anthracycline cardiotoxicity is early detection of high-risk patients.Aim of the studyTo investigate the role of cardiac biomarkers; cardiac troponin T (cTnT) and N-terminal probrain natriuretic peptide (NT-pro-BNP), and tissue Doppler imaging (TDI), as early predictors of chronic cardiotoxicity in survivors of acute leukemia.Patients and methodsWe carried a retrospective study on 50 asymptomatic survivors of acute leukemia who received anthracycline in their treatment protocols. All patients underwent blood sampling to determine the levels of NT-pro-BNP and cTnT along with conventional echocardiography and TDI.ResultsNone had abnormal cTnT levels. About 20% had abnormal NT-pro-BNP levels. Diastolic dysfunction of the left ventricle was the most significant in conventional echocardiography. TDI was superior as it detected myocardial affection in 10% more than echo. TDI demonstrated global myocardial damage with significant aberrations in peak myocardial velocities and ratios.ConclusionsNT-pro-BNP can be used as a sensitive cardiac biomarker in monitoring of anthracycline-induced cardiotoxicity. Follow up is essential to validate the role of NT-pro-BNP as an early marker for late onset anthracycline-induced cardiotoxicity. Tissue Doppler is marvelous as it could detect early cardiac dysfunction even in those with normal study by conventional echocardiography.
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